| Fri 16/3 | Lincoln North Port Lincoln |  Lincoln Orienteers | Orienteering SA | - | P | club | | L | | | |
| Sat 17/3 | Victorian MTBO Championships 2018 - Long Distance |  Yarra Valley Orienteering Club | Orienteering Victoria | 88 | M | champs | | L | | |  |
| Sat 17/3 | ACT League #1, Collector Hill (NSW State League #1) |  Bushflyers
 Orienteering NSW | Orienteering ACT
Orienteering NSW | 261 | | sta | | M | | |  |
| Sat 17/3 | Scots College, Warwick |  Bullecourt Boulder Bounders
 QLD Cyclones | Orienteering Queensland | 46 | | club | | S | | | |
| Sat 17/3 | Dinner - Vic MTBO Championships |  Bayside Kangaroos Orienteers
 Eureka Orienteers
Yarra Valley Orienteering Club | Orienteering Victoria | 48 | M | club | | L | N | | |
| Sun 18/3 | NSW State League #2 - Snows Hill (ACT League #2) |  Bennelong Northside Orienteers
 Big Foot Orienteers
 Orienteering ACT | Orienteering NSW
Orienteering ACT | 268 | | club | | L | | | |
| Sun 18/3 | Victorian MTBO Championships 2018 - Sprint Distance | Bayside Kangaroos Orienteers | Orienteering Victoria | 82 | M | champs | | S | | | |
| Sun 18/3 | Marlows Lagoon Northern Territory |  Top End Orienteers | Orienteering SA | - | | club | | L | | | |
| Sun 18/3 | Park Orienteering : Walking & Mountain Bike |  Sunshine Orienteers Club | Orienteering Queensland | 27 | FMP | club | | M | | | |
| Sun 18/3 | Glodseekers Local Event Bathurst #1 |  Goldseekers Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Sun 18/3 | OY2 at Dalmoak, east of The Summit | Bullecourt Boulder Bounders | Orienteering Queensland | 87 | | club | | L | | | |
| Sun 18/3 | Tasmanian Arboretum - North Western Local |  Pathfinders | Orienteering Tasmania | 10 | | loc | | M | | | |
| Sun 18/3 | Come and Try Orienteering - Magenta Mine Chiltern |  Albury-Wodonga Orienteering Club | Orienteering Victoria | - | | club | | M | | | |
| Sun 18/3 | Veale Gardens - South Parklands |  Onkaparinga Hills Orienteering Club | Orienteering SA | 66 | FP | club | | M | | | |
| Sun 18/3 | Victorian MTBO Championships 2018 - Middle Distance | Eureka Orienteers | Orienteering Victoria | 84 | M | champs | | M | | | |
| Sun 18/3 | NavDash 1 Whiteman Park |  Orienteering WA
 Wullundigong Orienteers of the West | Orienteering WA | 80 | | club | | S | | | |
| Sun 18/3 | SWOT Summer Series 5 - Bunbury South |  South-West Orienteering Trekkers | Orienteering WA | 14 | P | club | | M | | | |
| Mon 19/3 | ACT Street Series: Hughes | Orienteering ACT | Orienteering ACT | 80 | P | loc | | M | | | |
| Mon 19/3 | Melbourne PAS Monday Autumn Series 1 - Rosanna Parklands |  Orienteering Victoria | Orienteering Victoria | 43 | P | loc | | M | N | | |
| Tue 20/3 | Melbourne PAS Tuesday Autumn Series 1 - Kingsville |  Nillumbik Emus Orienteering Club | Orienteering Victoria | 74 | P | loc | | M | N | | |
| Tue 20/3 | Night Nav - Cubberla Creek (Chapel Hill) |  Ugly Gully Orienteers | Orienteering Queensland | 26 | FP | club | | M | N | | |
| Wed 21/3 | First Basin - Northern Autumn Twilight Series #6 |  Esk Valley | Orienteering Tasmania | 47 | | loc | | S | | |  |
| Wed 21/3 | Lambert Gully - Southern Twilight Series #6 |  Australopers | Orienteering Tasmania | 221 | P | loc | | S | | | |
| Wed 21/3 | Training Event: Lady Alice Goldfield |  Orienteering SA | Orienteering SA | - | | club | | L | | | |
| Wed 21/3 | 27th Sydney Summer Series - Putney |  Garingal Orienteers | Orienteering NSW | 122 | P | loc | | M | | | |
| Wed 21/3 | Smart Phone Demonstration Event - Carrington |  Newcastle Orienteering Club | Orienteering NSW | 0 | | loc | | S | | | |
| Wed 21/3 | Twilight Street O Lincoln Causeway | Albury-Wodonga Orienteering Club | Orienteering Victoria | - | P | club | | M | | | |
| Wed 21/3 | Melbourne PAS Wednesday Autumn Classic Series 1 - Balwyn North |  Dandenong Ranges Orienteering Club | Orienteering Victoria | 90 | P | loc | | M | N | | |
| Thu 22/3 | Easter Tas - Purchase of O Tops |  Orienteering Tasmania | Orienteering Tasmania | 30 | | loc | | L | | | |
| Thu 22/3 | SC-ORE #4: Macquarie Primary School | Orienteering ACT | Orienteering ACT | 33 | | club | R | S | | | |
| Thu 22/3 | Stockyard Creek, Burbank. Bush |  Orienteering Queensland | Orienteering Queensland | 24 | | club | | L | | | |
| Thu 22/3 | BUNS '18 - Lake Gardens | Eureka Orienteers | Orienteering Victoria | - | FP | club | | M | | | |
| Fri 23/3 | Northern Schools Championships | Esk Valley | Orienteering Tasmania | 87 | | loc | | L | | | |
| Fri 23/3 | Kirton Point Port Lincoln | Lincoln Orienteers | Orienteering SA | - | P | club | | L | | | |
| Sat 24/3 | Map and Compass Training Day |  Western and Hills Orienteers | Orienteering NSW | 7 | FP | loc | T | S | | | |
| Sat 24/3 | Bike O - MBRC Adventure Program |  Multi Terrain Bike Orienteers | Orienteering Queensland | 10 | MP | loc | T | M | | | |
| Sat 24/3 | Southern Darts Coaching Camp: Para Wirra Conservation Park | Orienteering SA | Orienteering SA | - | | club | | L | | | |
| Sat 24/3 | Melbourne PAS Saturday Series 1 - Cremorne | Bayside Kangaroos Orienteers | Orienteering Victoria | 30 | P | loc | | M | | | |
| Sat 24/3 | NavDash 2 SWOT Bunbury SHS | Orienteering WA
South-West Orienteering Trekkers | Orienteering WA | 43 | | club | | S | | | |
| Sun 25/3 | Great Volcanic Mountain Challenge | Goldseekers Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Sun 25/3 | Newcastle Club Minor - Minmi | Newcastle Orienteering Club | Orienteering NSW | 76 | | loc | | M | | | |
| Sun 25/3 | 2018 Metro League #1 | Bennelong Northside Orienteers | Orienteering NSW | 183 | | loc | | M | | | |
| Sun 25/3 | Wagga Local Bush Event |  Wagga and Riverina Occasional Orienteers | Orienteering NSW | 17 | | loc | | M | | | |
| Sun 25/3 | Boronia Reserve - Boronia Heights |  Toohey Forest Orienteers | Orienteering Queensland | 28 | | club | | L | | | |
| Sun 25/3 | Kooringle |  Northern Tablelands Orienteering Club | Orienteering NSW | 27 | | loc | | L | | | |
| Sun 25/3 | Gowrie Lacey Whyalla |  Saltbush Orienteers | Orienteering SA | - | FP | club | | L | | | |
| Sun 25/3 | Mack Creek OY #2 & SST #2 Event |  Tintookies Orienteers | Orienteering SA | 102 | | club | | L | | | |
| Sun 25/3 | Victorian Autumn Series 1 - Eureka Challenge | Eureka Orienteers | Orienteering Victoria | 114 | | sta | | M | | | |
| Sun 25/3 | SWOT FootO Evedon Ridge | Orienteering WA
South-West Orienteering Trekkers | Orienteering WA | 52 | | club | | L | | | |
| Mon 26/3 | ACT Street Series: Parkes | Orienteering ACT | Orienteering ACT | 89 | P | loc | | M | | | |
| Mon 26/3 | Melbourne PAS Monday Autumn Series 2 - Cathies Creek | Orienteering Victoria | Orienteering Victoria | 47 | P | loc | | M | N | | |
| Tue 27/3 | 27th Sydney Summer Series - Chatswood. Last event followed by eats and drinks and prize ceremony | Garingal Orienteers | Orienteering NSW | 158 | P | loc | | M | | | |
| Tue 27/3 | Melbourne PAS Tuesday Autumn Series 2 - Kensington | Bayside Kangaroos Orienteers | Orienteering Victoria | 23 | P | loc | | M | N | | |
| Tue 27/3 | Night Nav - Toowong | Ugly Gully Orienteers | Orienteering Queensland | 29 | FP | club | | M | N | | |
| Wed 28/3 | Gecko's Easter Urbanteering |  Totally Tropical Orienteering Club | Orienteering Queensland | - | | club | T | S | C | | |
| Wed 28/3 | Melbourne PAS Wednesday Autumn Classic Series 2 - Glen Eira East | Nillumbik Emus Orienteering Club | Orienteering Victoria | 51 | P | loc | | M | N | | |
| Thu 29/3 | Grange, Parks | Orienteering Queensland | Orienteering Queensland | 26 | | club | | L | | | |
| Thu 29/3 | Easter Tas - Informal Warm Up Event - Domain Athletic Centre | Orienteering Tasmania | Orienteering Tasmania | 77 | | loc | | S | | | |
| Fri 30/3 - Mon 2/4 | Easter Tas - Australian 3 Days - Elites | Orienteering Tasmania | Orienteering Tasmania | 831 | | nat | | S | | | |
| Fri 30/3 | Easter Tas - Australian 3 Days - Prologue - Non Elites | Orienteering Tasmania | Orienteering Tasmania | 357 | | nat | | S | | | |
| Sat 31/3 | Road Runners take on Easter Orienteering | Totally Tropical Orienteering Club | Orienteering Queensland | - | P | loc | T | M | | | |
| Sat 31/3 - Mon 2/4 | Easter Tas - Australian 3 Days - Non Elites | Orienteering Tasmania | Orienteering Tasmania | 3497 | | nat | | M | | | |
| Sat 31/3 | Melbourne PAS Saturday Series 2 - Abbey Walk | Dandenong Ranges Orienteering Club | Orienteering Victoria | 50 | P | loc | | M | | | |
| Sun 1/4 | CANCELLED Coombabah Lakelands, Gold Coast |  Paradise Lost Orienteers | Orienteering Queensland | - | | club | | M | | | |
| Mon 2/4 | Melbourne PAS Monday Autumn Series 3 - Ashwood South | Orienteering Victoria | Orienteering Victoria | 44 | P | loc | | M | N | | |
| Tue 3/4 - Sat 7/4 | JWOC training camp |  Orienteering Australia | | 14 | | nat | | M | C | | |
| Wed 4/4 | Newcastle Night Champs | Newcastle Orienteering Club | Orienteering NSW | 34 | P | loc | | M | | | |
| Wed 4/4 | Melbourne PAS Wednesday Autumn Classic Series 3 - Wantirna South | Bayside Kangaroos Orienteers | Orienteering Victoria | 73 | P | loc | | M | N | | |
| Thu 5/4 | Kuraby Parks | Orienteering Queensland | Orienteering Queensland | 16 | | club | | L | | | |
| Thu 5/4 - Sat 7/4 | Easter Tas - Bay of Fires 3 Days | Orienteering Tasmania | Orienteering Tasmania | 1036 | | sta | | S | | | |
| Sat 7/4 | Bendigo Bush Classic 1 - Wildflower Drive |  Bendigo Orienteers | Orienteering Victoria | 48 | | club | | L | | | |
| Sat 7/4 | Newcastle Orienteers Minor Event Free Entry | Newcastle Orienteering Club | Orienteering NSW | 6 | | loc | | M | | | |
| Sat 7/4 | Melbourne PAS Saturday Series 3 - Greensborough | Nillumbik Emus Orienteering Club | Orienteering Victoria | 49 | P | loc | | M | | | |
| Sun 8/4 | Lee Point & AGM Northern Territory | Top End Orienteers | Orienteering SA | - | | club | | L | | | |
| Sun 8/4 | Level 1 Coach Workshop - Merewether High School | Orienteering NSW | Orienteering NSW | - | FP | loc | | M | | | |
| Sun 8/4 | Newcastle Orienteers NOY #1 (Free Entry) | Newcastle Orienteering Club | Orienteering NSW | 82 | | loc | | M | | | |
| Sun 8/4 | MelBushO 1 - Cardinia Reservoir | Yarra Valley Orienteering Club | Orienteering Victoria | 107 | | club | | M | | | |
| Sun 8/4 | Waggaroos Interclub Event #1 | Wagga and Riverina Occasional Orienteers | Orienteering NSW | 20 | | loc | | M | | | |
| Sun 8/4 | Goldseekers Local Event (Bush #2) | Goldseekers Orienteers | Orienteering NSW | 35 | | loc | | M | | | |
| Sun 8/4 | Sunday Forest Training - Blackwood Forest and Belair Golf Course | Onkaparinga Hills Orienteering Club
Orienteering SA | Orienteering SA | - | | club | | M | | | |
| Sun 8/4 | Whyalla East Whyalla | Saltbush Orienteers | Orienteering SA | - | | club | | L | | | |
| Sun 8/4 | Donington Port Lincoln | Lincoln Orienteers | Orienteering SA | - | | club | | L | | | |
| Mon 9/4 | Melbourne PAS Monday Autumn Series 4 - Bulleen Ups N Downs | Orienteering Victoria | Orienteering Victoria | 52 | P | loc | | M | N | | |
| Tue 10/4 | Melbourne PAS Tuesday Autumn Series 3 - Newport | Bayside Kangaroos Orienteers | Orienteering Victoria | 21 | P | loc | | M | N | | |
| Wed 11/4 | ACT Schools Nomination 2018 | Orienteering ACT | Orienteering ACT | 28 | | loc | | M | | | |
| Wed 11/4 | Level 0 Coaching Course - School Sports Unit TPL | Orienteering NSW | Orienteering NSW | - | | loc | | M | | | |
| Wed 11/4 | Melbourne PAS Wednesday Autumn Classic Series 4 - Tunstall Junction | Dandenong Ranges Orienteering Club | Orienteering Victoria | 85 | P | loc | | M | N | | |
| Thu 12/4 | Bardon Forest Park, Bush | Orienteering Queensland | Orienteering Queensland | 31 | | club | | L | | | |
| Fri 13/4 - Sun 15/4 | QLD Mini Cyclones Orienteering Camp | Bullecourt Boulder Bounders | Orienteering Queensland | - | | club | T | L | | | |
| Sat 14/4 | Bendigo Bush Classic 2 - Kangaroo Gully | Bendigo Orienteers | Orienteering Victoria | 34 | | club | | L | | | |
| Sat 14/4 | BH Forest Fundamentals Coaching Weekend |  Bold Horizons Event Organiser | Orienteering NSW | 3 | | loc | | M | | | |
| Sat 14/4 | Melbourne PAS Saturday Series 4 - PARK - Eaglemont Flats |  Melbourne Forest Racers | Orienteering Victoria | 44 | P | loc | | M | | | |
| Sun 15/4 | Chuwar MTBO | Multi Terrain Bike Orienteers | Orienteering Queensland | 45 | M | club | | L | | | |
| Sun 15/4 | Sandy Creek, Leslie Dam, Warwick | Bullecourt Boulder Bounders | Orienteering Queensland | 60 | | club | | L | | | |
| Sun 15/4 | Mt Coot-tha | Ugly Gully Orienteers | Orienteering Queensland | 64 | | club | | L | | | |
| Sun 15/4 | Park Orienteering at Johnson Park, Cooroy | Sunshine Orienteers Club | Orienteering Queensland | 5 | FP | club | | M | | | |
| Sun 15/4 | Metro League #2 - Mitchell Park | Garingal Orienteers | Orienteering NSW | 171 | FP | loc | | M | | | |
| Sun 15/4 | Goldseekers Club Event (O Games #2) | Goldseekers Orienteers | Orienteering NSW | - | | loc | | M | | | |
| Sun 15/4 | Come and Try Orienteering - 9 Mile Hill | Albury-Wodonga Orienteering Club | Orienteering Victoria | - | | club | | M | | | |
| Sun 15/4 | ACT Classic Series: ACT League #3, Orroral Tracking Station |  Red Roos | Orienteering ACT | 107 | | loc | | M | | | |
| Sun 15/4 | Victorian Autumn Series 2 - Mt Lofty, Redesdale | Nillumbik Emus Orienteering Club | Orienteering Victoria | 154 | | sta | | M | | | |
| Sun 15/4 | Mt Crawford Forest: Bundy East |  Tjuringa Orienteers | Orienteering SA | 111 | | club | | L | | | |
| Sun 15/4 | MTBO Falcon |  Kulgun 225 Orienteers
Orienteering WA | Orienteering WA | 26 | M | club | | L | | | |
| Sun 15/4 | BH Forest Fundamentals Coaching Weekend | Bold Horizons Event Organiser | Orienteering NSW | 2 | | club | | L | | | |
| Mon 16/4 | ACT Street Series: Watson | Orienteering ACT | Orienteering ACT | 37 | P | loc | | M | | | |
| Mon 16/4 | Melbourne PAS Monday Autumn Series 5 - Greythorn Park | Orienteering Victoria | Orienteering Victoria | 53 | P | loc | | M | N | | |
| Tue 17/4 | Night Nav - Indooroopilly | Ugly Gully Orienteers | Orienteering Queensland | 26 | FP | club | | M | N | | |
| Tue 17/4 | Melbourne PAS Tuesday Autumn Series 4 - Moonee Ponds | Bayside Kangaroos Orienteers | Orienteering Victoria | 17 | P | loc | | M | N | | |
| Wed 18/4 | Introduction to Orienteering Wadmore Park: POSTPONED:NEW DATE TBA Training Event | Orienteering SA | Orienteering SA | 0 | | club | | L | | | |
| Wed 18/4 | Mid Week Training: Kuitpo Forest The Eucalypts CANCELLED | Orienteering SA | Orienteering SA | 0 | | club | | L | | | |
| Wed 18/4 - Sun 22/4 | Armidale Combined ACT/NSW Training Camp | Orienteering ACT
Orienteering NSW | Orienteering ACT
Orienteering NSW | 70 | | sta | | L | | | |
| Wed 18/4 | Trevallyn Night O #1 | Esk Valley | Orienteering Tasmania | 10 | | loc | | S | N | | |
| Wed 18/4 | Melbourne PAS Wednesday Autumn Classic Series 5 - Blackburn | Yarra Valley Orienteering Club | Orienteering Victoria | 97 | P | loc | | M | N | | |
| Thu 19/4 | Quinzeh Rocks North, Cedar Creek, near Logan Village, Bush | Orienteering Queensland | Orienteering Queensland | 24 | | club | | L | | | |
| Sat 21/4 | Womens Coaching Weekend Day 1 | Orienteering Victoria | Orienteering Victoria | 0 | | club | | L | | | |
| Sat 21/4 | Bendigo Rocks 1 - Korong Spur | Bendigo Orienteers | Orienteering Victoria | 53 | | club | | L | | | |
| Sat 21/4 | NSW Middle Distance Champs SL #3 | Northern Tablelands Orienteering Club | Orienteering NSW | 289 | | champs | | M | | | |
| Sun 22/4 | Womens Coaching Weekend Day 2 | Orienteering Victoria | Orienteering Victoria | 0 | | club | | L | | | |
| Sun 22/4 | NSW Long Distance Champs SL #4 |  Bush n Beach Orienteering Club
Northern Tablelands Orienteering Club | Orienteering NSW | 296 | | champs | | L | | | |
| Sun 22/4 | Columboola Event |  Range Runners Orienteering Club | Orienteering Queensland | 28 | | club | | L | | | |
| Sun 22/4 | Columboola Coaching & Training | Range Runners Orienteering Club | Orienteering Queensland | - | | club | | M | | | |
| Sun 22/4 | Toohey Forest - Nathan | Toohey Forest Orienteers | Orienteering Queensland | 52 | | club | | L | | | |
| Sun 22/4 | Glodseekers Local Event Bathurst #2 | Goldseekers Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Sun 22/4 | NavDash 3 John Curtin School of the Arts | Orienteering WA
Wullundigong Orienteers of the West | Orienteering WA | 90 | | club | | S | | | |
| Sun 22/4 | Cancelled - Pine Rivers Park - Clinic | Orienteering Queensland | Orienteering Queensland | - | P | loc | | L | | | |
| Mon 23/4 | ACT Street Series: Amaroo | Orienteering ACT | Orienteering ACT | 39 | P | loc | | M | | | |
| Mon 23/4 | Melbourne PAS Monday Autumn Series 6 - Mitchelhill | Orienteering Victoria | Orienteering Victoria | 51 | P | loc | | M | N | | |
| Tue 24/4 | Night Nav - Bardon | Ugly Gully Orienteers | Orienteering Queensland | 31 | FP | club | | M | N | | |
| Tue 24/4 | Melbourne PAS Tuesday Autumn Series 5 - Old Williamstown | Bayside Kangaroos Orienteers | Orienteering Victoria | 11 | P | loc | | M | N | | |
| Wed 25/4 | Travellyn Night O #2 | Esk Valley | Orienteering Tasmania | 12 | | club | | L | C | | |
| Wed 25/4 | Melbourne PAS Wednesday Autumn Classic Series 6 - Balwyn Central | Bayside Kangaroos Orienteers | Orienteering Victoria | 83 | P | loc | | M | N | | |
| Thu 26/4 | Secondary Series #1 - Limestone Park, Ipswich | Orienteering Queensland | Orienteering Queensland | 100 | P | loc | | M | | | |
| Thu 26/4 | Limestone Park, Ipswich | Orienteering Queensland | Orienteering Queensland | - | | club | | L | | | |
| Thu 26/4 | Orienteering School Holiday Space Racing | Orienteering NSW | Orienteering NSW | 75 | P | loc | | M | | | |
| Sat 28/4 | Bendigo Night Champs 2018 - Dead Bullock Gully | Bendigo Orienteers | Orienteering Victoria | 42 | | club | | L | N | | |
| Sat 28/4 | OY3 - Sprint Champs - The Gap |  Enoggeroos | Orienteering Queensland | 116 | | club | | S | | | |
| Sat 28/4 | Melbourne PAS Saturday Series 5 - Yarraman | Dandenong Ranges Orienteering Club | Orienteering Victoria | 52 | P | loc | | M | | | |
| Sat 28/4 | IKO local #2 - Warilla Beach |  Illawarra Kareelah Orienteers | Orienteering NSW | 14 | | loc | | M | | | |
| Sun 29/4 | Buttons Beach - Ulverstone - Results | Pathfinders | Orienteering Tasmania | 87 | | loc | | S | | | |
| Sun 29/4 | Newcastle Orienteers Minor Event | Newcastle Orienteering Club | Orienteering NSW | 72 | | loc | | M | | | |
| Sun 29/4 | OY4 - Bush - Slickers | Sunshine Orienteers Club | Orienteering Queensland | 119 | | club | | L | | | |
| Sun 29/4 | MelBushO 2 - Hawkstowe, Plenty Gorge | Nillumbik Emus Orienteering Club | Orienteering Victoria | 191 | | club | | M | | | |
| Sun 29/4 | AWOC-Waggaroos Interclub No.2 Honeyeater Picnic Area - Chiltern | Albury-Wodonga Orienteering Club | Orienteering Victoria | - | | club | | M | | | |
| Sun 29/4 | Buttons Beach - Ulverstone - Info, Maps & Livelox | Pathfinders | Orienteering Tasmania | - | | loc | | S | | | |
| Sun 29/4 | Black Hill & Surrounds: City to Bush Event 1 | Tintookies Orienteers | Orienteering SA | 94 | | club | | L | | | |
| Sun 29/4 | Mt Laura Whyalla | Saltbush Orienteers | Orienteering SA | - | | club | | L | | | |
| Sun 29/4 | SHOO Highlands Forest Series #2 - Beyond Rocklea, Belanglo S F |  Southern Highlands Orienteers | Orienteering NSW | 73 | | loc | | M | | | |
| Sun 29/4 | NavDash 4 Garvey Park |  Bibbulmun Orienteers
Orienteering WA | Orienteering WA | 95 | | club | | S | | | |
| Sun 29/4 | Perserverance Dam Coaching | Range Runners Orienteering Club | Orienteering Queensland | 12 | | loc | | L | | | |
| Mon 30/4 | ACT Street Series: Isaacs | Orienteering ACT | Orienteering ACT | 59 | P | loc | | M | | | |
| Mon 30/4 | Melbourne PAS Monday Autumn Series 7 - Glenfern Run | Orienteering Victoria | Orienteering Victoria | 41 | P | loc | | M | N | | |
| Tue 1/5 | Night Nav - West End | Ugly Gully Orienteers | Orienteering Queensland | 33 | FP | club | | M | N | | |
| Tue 1/5 | Melbourne PAS Tuesday Autumn Series 6 - North Melbourne | Bayside Kangaroos Orienteers | Orienteering Victoria | 22 | P | loc | | M | N | | |
| Wed 2/5 | Moonlight Madness - Winston Hills | Western and Hills Orienteers | Orienteering NSW | 47 | FP | loc | | M | N | | |
| Wed 2/5 | Melbourne PAS Wednesday Autumn Classic Series 7 - Wheelers Hill | Dandenong Ranges Orienteering Club | Orienteering Victoria | 75 | P | loc | | M | N | | |
| Thu 3/5 | Bunyaville West Bush | Orienteering Queensland | Orienteering Queensland | 24 | | club | | L | | | |
| Sat 5/5 | SOS (Hills District) - Castle Hill | Bold Horizons Event Organiser | Orienteering NSW | 50 | | loc | | S | | | |
| Sat 5/5 | SOS (Northside) - Turramurra | Bold Horizons Event Organiser | Orienteering NSW | 64 | | loc | | M | | | |
| Sat 5/5 | ACT Metro Series: Junior League #1, Weston Park | Bushflyers | Orienteering ACT | 183 | | loc | | S | | | |
| Sat 5/5 | Para Wirra: Opening of new permanent courses | Tintookies Orienteers | Orienteering SA | - | | club | | L | | | |
| Sat 5/5 | ACT Metro Series Season Pass | Orienteering ACT | Orienteering ACT | 117 | | club | | M | | | |
| Sat 5/5 | Bendigo Bush Classic 3 - Diamond Hill South | Bendigo Orienteers | Orienteering Victoria | 60 | | club | | L | | | |
| Sat 5/5 | Introduction to Orienteering Very Easy Courses Para Wirra Conservation Park A Coaching Event | Orienteering SA | Orienteering SA | - | | loc | | L | | | |
| Sat 5/5 | Southern Darts Training Camp: Para Wirra Conservation Park | Orienteering SA | Orienteering SA | - | | loc | | L | C | | |
| Sat 5/5 | Melbourne PAS Saturday Series 6 - PARK - Truganina | Nillumbik Emus Orienteering Club | Orienteering Victoria | 56 | P | loc | | M | | | |
| Sat 5/5 | Mt Nelson - Southern Saturday Series - Event 1 | Australopers | Orienteering Tasmania | 78 | | loc | | M | | | |
| Sun 6/5 | Tas Schools Champs - Lovelybanks - school team selection event | Australopers | Orienteering Tasmania | 98 | | sta | | L | | | |
| Sun 6/5 | Victorian Autumn Series 3 - Kimbolton, Lake Eppalock | Yarra Valley Orienteering Club | Orienteering Victoria | 150 | | sta | | L | | | |
| Sun 6/5 | Camp Fairbairn 40 Yrs, Emerald | Orienteering Queensland | Orienteering Queensland | 40 | | club | | L | | | |
| Sun 6/5 | Bush Orienteering - Mt Crosby | Ugly Gully Orienteers | Orienteering Queensland | 68 | | club | | L | | | |
| Sun 6/5 | Newcastle Orienteers NOY #2 | Newcastle Orienteering Club | Orienteering NSW | 95 | | loc | | M | | | |
| Sun 6/5 | Goanna - Galston | Garingal Orienteers | Orienteering NSW | 93 | | loc | | M | | | |
| Sun 6/5 | Goldseekers Local Event (Bush #3) | Goldseekers Orienteers | Orienteering NSW | 22 | | loc | | M | | | |
| Sun 6/5 | Bush 'n' Beach Local (Middle) | Bush n Beach Orienteering Club | Orienteering NSW | 25 | | loc | | M | | | |
| Sun 6/5 | ACT Classic Series: ACT Teams Race, Stromlo West |  Abominable O-Men | Orienteering ACT | 45 | | loc | R | L | | | |
| Sun 6/5 | Heathfield and Heathfield HS - City to Bush Event 2 | Onkaparinga Hills Orienteering Club | Orienteering SA | 99 | | club | | M | | | |
| Sun 6/5 | Boston Island Port Lincoln | Lincoln Orienteers | Orienteering SA | - | | club | | L | | | |
| Sun 6/5 | FootO 1 Edmund Rice College | Kulgun 225 Orienteers
Orienteering WA | Orienteering WA | 82 | | club | | L | | | |
| Sun 6/5 | Coaching - Daisy Hill Reserve | Toohey Forest Orienteers | Orienteering Queensland | 8 | | club | | L | | | |
| Mon 7/5 | Riverina School Champs | Wagga and Riverina Occasional Orienteers | Orienteering NSW | - | | loc | | M | | | |
| Mon 7/5 | ACT Street Series: Aranda | Orienteering ACT | Orienteering ACT | 44 | P | loc | | M | | | |
| Mon 7/5 | Melbourne PAS Monday Autumn Series 8 - Mitcham | Orienteering Victoria | Orienteering Victoria | 55 | P | loc | | M | N | | |
| Tue 8/5 | Night Nav - Toowong - Anzac Park | Ugly Gully Orienteers | Orienteering Queensland | 20 | FP | club | | M | N | | |
| Tue 8/5 | Melbourne PAS Tuesday Autumn Series 7 - Strathmore | Bayside Kangaroos Orienteers | Orienteering Victoria | 15 | P | loc | | M | N | | |
| Wed 9/5 | Mid Week Training : Mt Crawford Forest (Lucky Hit) | Orienteering SA | Orienteering SA | - | | club | | L | | | |
| Wed 9/5 | ACT Midweek Series #1: Aranda Bushlands | Orienteering ACT | Orienteering ACT | 28 | | loc | | M | | | |
| Wed 9/5 | Melbourne PAS Wednesday Autumn Classic Series 8 - Blackburn North |  Victorian ARDF Group | Orienteering Victoria | 78 | P | loc | | M | N | | |
| Thu 10/5 | Toohey Forest Bush | Orienteering Queensland | Orienteering Queensland | 25 | | club | | L | | | |
| Fri 11/5 | Kingaroy Sprint | Range Runners Orienteering Club | Orienteering Queensland | 15 | | club | | S | | | |
| Sat 12/5 | Vic MTBO Series #1 - Paddy's Swamp | Bayside Kangaroos Orienteers | Orienteering Victoria | 47 | M | sta | | L | | | |
| Sat 12/5 | ACT Sprint Distance Championships: ACT League #5 & NSW League #5, Canberra Grammar School | Bushflyers
Orienteering NSW | Orienteering ACT
Orienteering NSW | 291 | | champs | | S | | | |
| Sat 12/5 | Bendigo Bush Classic 4 - Diamond Hill North | Bendigo Orienteers | Orienteering Victoria | 54 | | club | | L | | | |
| Sat 12/5 | Melbourne PAS Saturday Series 7 - EndurO - Gardiners Bend | Bayside Kangaroos Orienteers | Orienteering Victoria | 64 | P | loc | | M | | | |
| Sat 12/5 | Stonyfell - City to Bush Event 3 |  Wallaringa Orienteering Club | Orienteering SA | 40 | FP | loc | | M | | | |
| Sat 12/5 | MTBO Wellington Forest | Bibbulmun Orienteers | Orienteering WA | 22 | M | club | | L | | | |
| Sun 13/5 | Wine Country Wander - 6 hour Cyclegaine | Sunshine Orienteers Club | Orienteering Queensland | 0 | M | club | T | L | | | |
| Sun 13/5 | Bush - Foot - MBRC Clear Mountain, Cashmere | Enoggeroos | Orienteering Queensland | 41 | | club | | M | | | |
| Sun 13/5 | ACT Middle Distance Championships: ACT League #6 & NSW League #6, Orroral Crossing | Orienteering NSW
 Parawanga Orienteers | Orienteering NSW
Orienteering ACT | 269 | | champs | | M | | | |
| Sun 13/5 | Goldseekers Club Event (O Games #3) | Goldseekers Orienteers | Orienteering NSW | - | | loc | | M | | | |
| Sun 13/5 | AWOC MTBO Chiltern | Albury-Wodonga Orienteering Club | Orienteering Victoria | - | M | club | | M | | | |
| Sun 13/5 | Bush N Beach Local (Sprint) | Bush n Beach Orienteering Club | Orienteering NSW | 17 | | loc | | M | | | |
| Sun 13/5 | MTBO Bussell Brook | Bibbulmun Orienteers | Orienteering WA | 16 | M | club | | L | | | |
| Sun 13/5 | Coaching - Daisy Hill Reserve | Toohey Forest Orienteers | Orienteering Queensland | 13 | | club | | L | | | |
| Mon 14/5 | ACT Street Series: Griffith | Orienteering ACT | Orienteering ACT | 43 | P | loc | | M | | | |
| Mon 14/5 | Melbourne PAS Monday Autumn Series 9 - The Glen | Orienteering Victoria | Orienteering Victoria | 44 | P | loc | | M | N | | |
| Tue 15/5 | Night Nav - Ithaca | Ugly Gully Orienteers | Orienteering Queensland | 20 | FP | club | | M | N | | |
| Tue 15/5 | Melbourne PAS Tuesday Autumn Series 8 - The Strand | Bayside Kangaroos Orienteers | Orienteering Victoria | 10 | P | loc | | M | N | | |
| Wed 16/5 | ACT Midweek Series #2: Remembrance Park | Orienteering ACT | Orienteering ACT | 32 | | loc | | M | | | |
| Wed 16/5 | Melbourne PAS Wednesday Autumn Classic Series 9 - Camelot Rise | Nillumbik Emus Orienteering Club | Orienteering Victoria | 76 | P | loc | | M | N | | |
| Thu 17/5 | Sherwood Arboretum Parks and Streets | Orienteering Queensland | Orienteering Queensland | 29 | | club | | L | | | |
| Fri 18/5 | Australian & QLD MTBO Champs Model Event | Sunshine Orienteers Club | Orienteering Queensland | 11 | M | club | | L | | | |
| Fri 18/5 | 2018 VSSOC - Balt Camp | Orienteering Victoria | Orienteering Victoria | 312 | | sta | | L | | | |
| Sat 19/5 - Sun 20/5 | Australian and QLD MTBO Championships | Sunshine Orienteers Club | Orienteering Queensland | 225 | M | sta | | S | | | |
| Sat 19/5 | SOS (Hills District) - Castle Hill | Bold Horizons Event Organiser | Orienteering NSW | 83 | | loc | | S | | | |
| Sat 19/5 | SOS (Northside) - Bobbin Head | Bold Horizons Event Organiser | Orienteering NSW | 54 | | loc | | M | | | |
| Sat 19/5 | ACT Metro Series: Junior League #2 & Map Mates Welcome, Campbell Park | Red Roos | Orienteering ACT | 212 | | loc | | M | | | |
| Sat 19/5 | NOL 9 & Vic Middle Champs - Yorkshire Hill, Bendigo | Bendigo Orienteers
Orienteering Victoria | Orienteering Victoria | 211 | | nat | | M | | | |
| Sat 19/5 | IKO local #3 Gerringong | Illawarra Kareelah Orienteers | Orienteering NSW | - | | loc | | M | | | |
| Sat 19/5 | Mourilya Night Event Port Lincoln | Lincoln Orienteers | Orienteering SA | - | | club | | L | N | | |
| Sun 20/5 | Level 1 Coaching course at Stockyard Creek | Toohey Forest Orienteers | Orienteering Queensland | - | | club | | L | | | |
| Sun 20/5 | Bluff River - OST 7 (school team selection event) | Australopers | Orienteering Tasmania | 98 | | sta | | L | | | |
| Sun 20/5 | Perseverance Dam Event and UMC Session 3 | Range Runners Orienteering Club | Orienteering Queensland | 64 | | club | | L | | | |
| Sun 20/5 | 2018 Newcastle Pairs Championships | Newcastle Orienteering Club | Orienteering NSW | 44 | | club | T | M | | | |
| Sun 20/5 | NOL 10 & Victorian Autumn Series 4 - Tipperary, Hepburn Springs | Bayside Kangaroos Orienteers
Orienteering Victoria | Orienteering Victoria | 206 | | nat | | L | | | |
| Sun 20/5 | Glodseekers Local Event Bathurst #3 | Goldseekers Orienteers | Orienteering NSW | - | | loc | | M | | | |
| Sun 20/5 | Waggaroos Local Event - Sprint | Wagga and Riverina Occasional Orienteers | Orienteering NSW | 5 | | loc | | M | | | |
| Sun 20/5 | Shepherds Hill - City to Bush Event 4 | Tjuringa Orienteers | Orienteering SA | 86 | | club | | M | | | |
| Sun 20/5 | Moonabie Range Whyalla | Saltbush Orienteers | Orienteering SA | - | | club | | L | | | |
| Sun 20/5 | SHOO Highland Forest Series #3 - Mt Alexandra Reserve | Southern Highlands Orienteers | Orienteering NSW | 47 | | loc | | M | | | |
| Sun 20/5 | Shepherds Hill MTBO | Orienteering SA | Orienteering SA | 35 | M | club | | L | | | |
| Sun 20/5 | FootO 2 Marginata |  LOST
Orienteering WA | Orienteering WA | 0 | | club | | L | | | |
| Sun 20/5 | SWOT Maidens | South-West Orienteering Trekkers | Orienteering WA | 23 | | club | | M | | | |
| Mon 21/5 | SA Schools Championships: The Paddocks |  Yalanga Orienteers | Orienteering SA | 234 | | sta | | L | | | |
| Mon 21/5 | ACT Street Series: Hackett | Orienteering ACT | Orienteering ACT | 43 | P | loc | | M | | | |
| Mon 21/5 | Melbourne PAS Monday Autumn Series 10 - Kew East | Orienteering Victoria | Orienteering Victoria | 49 | P | loc | | M | N | | |
| Tue 22/5 | Melbourne PAS Tuesday Autumn Series 9 - Whitten Oval | Bayside Kangaroos Orienteers | Orienteering Victoria | 10 | P | loc | | M | N | | |
