| w 14 | Wed 1/4 | 2020 NSW Schools Team nominations |  Orienteering NSW | Orienteering NSW | 32 | | sta | | L | | | |
| Melbourne PAS Wednesday Summer Series 25 - Maroondah Triangle. NO EVENT; USE MAPLINK |  Dandenong Ranges Orienteering Club | Orienteering Victoria | - | P | loc | | M | N | | |
| Sydney Summer Series #26 West Pymble (Cancelled for time being - COVID 19) |  Big Foot Orienteers | Orienteering NSW | 0 | P | loc | | M | | | |
| Thu 2/4 | Bunyaville West, Bunya, Bush POSTPONED |  Orienteering Queensland | Orienteering Queensland | 0 | | club | | L | | | |
| Fri 3/4 | | | | | | | | | | | |
| Sat 4/4 | ACT Sprint Distance Championships: ACT League #1, ADFA - CANCELLED |  Parawanga Orienteers | Orienteering ACT | 29 | | champs | | S | | | |
| Melbourne PAS Saturday Series 1 - Ruffey Lake. NO EVENT; USE MAPLINK |  Yarra Valley Orienteering Club | Orienteering Victoria | - | P | loc | | M | | | |
| Strathpine - Pine Rivers Park - Healthy and Active Maprun | Orienteering Queensland | Orienteering Queensland | 0 | FMP | loc | | S | | | |
| Stonehenge - Tas Schools Champs - Southern Local #3 - CANCELLED |  Australopers | Orienteering Tasmania | 0 | | sta | | L | | | |
| IKO Local - Lucas Reserve, Wanda - CANCELLED |  Illawarra Kareelah Orienteers | Orienteering NSW | 0 | | club | | M | | | |
| MTBO Sprint Event - Beechworth POSTPONED TO FUTURE DATE. |  Albury-Wodonga Orienteering Club | Orienteering Victoria | 16 | M | sta | | S | | | |
| Darts Training - CANCELLED |  Orienteering SA | Orienteering SA | 0 | | loc | | S | | | |
| Sun 5/4 | CANCELLED: Mt Coot-tha GREY GUM Picnic Area - BCC Active and Healthy event |  Ugly Gully Orienteers | Orienteering Queensland | 0 | | club | | L | | | |
| Cancelled - COVID 19 / NOY1 - Pelton Extended |  Newcastle Orienteering Club | Orienteering NSW | 0 | | club | | M | | | |
| Waggaroos local event - (Cancelled) |  Wagga and Riverina Occasional Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Cancelled - COVID 19 / Bush Series #2 |  Goldseekers Orienteers | Orienteering NSW | - | | club | | L | | | |
| SH Highlands Forest Series #1 |  Southern Highlands Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Vic MTBO Vic Series #1 - Stanley. POSTPONED TO A FUTURE DATE | Albury-Wodonga Orienteering Club
 Bayside Kangaroos Orienteers | Orienteering Victoria | 15 | M | sta | | L | | | |
| ACT Classic Series: ACT League #2, Mugga Mugga - CANCELLED |  Abominable O-Men | Orienteering ACT | 9 | | sta | | L | | | |
| Cancelled - COVID 19 / Armidale Bush-O |  Northern Tablelands Orienteering Club | Orienteering NSW | - | | loc | | M | | | |
| Pewsey Vale OY2 SST2 - CANCELLED |  Tintookies Orienteers | Orienteering SA | 2 | | club | | L | | | |
| Whyalla East CANCELLED |  Saltbush Orienteers | Orienteering SA | 0 | FP | club | | L | | | |
| Mourilya - CANCELLED |  Lincoln Orienteers | Orienteering SA | 0 | | club | | L | | | |
| NavDash 2 Scotch College - CANCELLED |  Orienteering WA
 Wullundigong Orienteers of the West | Orienteering WA | 0 | | club | | S | | | |
| MapRun Parks - Anzac Park | Ugly Gully Orienteers | Orienteering Queensland | 0 | FP | club | | L | | | |
| Australind (SWOT Urban series 5) - CANCELLED |  South-West Orienteering Trekkers | Orienteering WA | 0 | P | club | | S | | | |
| w 15 | Mon 6/4 | ACT Street Series: Kaleen - CANCELLED |  Orienteering ACT | Orienteering ACT | 0 | P | loc | | M | | | |
| Melbourne PAS Monday Autumn Series 1 - Mullum Mullum. NO EVENT; USE MAPLINK |  Orienteering Victoria | Orienteering Victoria | - | P | loc | | M | N | | |
| Tue 7/4 | Melbourne PAS Tuesday Autumn Series 3 - Essendon. NO EVENT; USE MAPLINK | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | N | | |
| Wed 8/4 | Mid Week Training Kuitpo Forest The Eucalypts - CANCELLED | Orienteering SA | Orienteering SA | 0 | | loc | | L | | | |
| Melbourne PAS Wednesday Autumn Classic Series 1 - Hawthorn East. NO EVENT; USE MAPLINK |  Nillumbik Emus Orienteering Club | Orienteering Victoria | - | P | loc | | M | N | | |
| Thu 9/4 | Gold Mine Reserve, Mt Coot-tha Bush POSTPONED | Orienteering Queensland | Orienteering Queensland | 0 | | club | | L | | | |
| Fri 10/4 | Easter 2020 has moved to April 2021, race 1 | Orienteering NSW | Orienteering NSW | - | | club | | L | | | |
| Sat 11/4 | Easter 2020 has moved to April 2021, race 2 | Orienteering NSW | Orienteering NSW | - | | club | | L | | | |
| Sun 12/4 | Easter 2020 has moved to April 2021, race 3 | Orienteering NSW | Orienteering NSW | - | | club | | L | | | |
| Petrie MTBO |  Multi Terrain Bike Orienteers | Orienteering Queensland | 0 | M | club | | M | | 11/4 | |
| NQ Games - Urban Adventure |  Totally Tropical Orienteering Club | Orienteering Queensland | 0 | FP | loc | | M | | | |
| w 16 | Mon 13/4 | Easter 2020 has moved to April 2021, race 4 | Orienteering NSW | Orienteering NSW | - | | club | | L | | | |
| ACT Street Series: Ainslie - CANCELLED | Orienteering ACT | Orienteering ACT | 0 | | loc | | M | | | |
| Melbourne PAS Monday Autumn Series 2 - Dandenong Creek | Orienteering Victoria | Orienteering Victoria | - | P | loc | | M | N | | |
| Tue 14/4 | Postponed - Level 1 Coaching Workshop | Orienteering NSW | Orienteering NSW | - | | nat | | L | | | |
| Wed 15/4 | Melbourne PAS Wednesday Autumn Classic Series 2 - Bulleen Ups and Downs | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | N | | |
| Thu 16/4 | Rocks Riverside Park BCC GOLD n Kids POSTPONED | Orienteering Queensland | Orienteering Queensland | 0 | | club | | L | | | |
| Fri 17/4 | | | | | | | | | | | |
| Sat 18/4 | Postponed - NSW Middle Championships - Eugowra - to 2021 |  Garingal Orienteers | Orienteering NSW | 140 | | champs | | M | | 5/4 | |
| Bendigo Bush Classic 3 - Pilchers Bridge North |  Bendigo Orienteers | Orienteering Victoria | 0 | | club | | L | | | |
| Melbourne PAS Saturday Series 2 - Dingley Village | Dandenong Ranges Orienteering Club | Orienteering Victoria | - | P | loc | | M | | | |
| Sun 19/4 | Postponed - NSW Long Championships - Eugowra - to 2021 | Garingal Orienteers | Orienteering NSW | 130 | | champs | | L | | 5/4 | |
| Postponed - MelbushO 1 - Woodlands Historic Park |  Tuckonie Orienteering Club | Orienteering Victoria | - | | club | | L | | | |
| Cancelled - COVID 19 / HOG April Orienteering - Wayne Richards Park |  Hastings Orienteering Group | Orienteering NSW | - | | loc | | M | | | |
| NavDash 3 John Curtin College of the Arts - CANCELLED |  LOST
Orienteering WA | Orienteering WA | 0 | | club | | S | | | |
| Bunbury (SWOT Urban Series 6) - CANCELLED | South-West Orienteering Trekkers | Orienteering WA | 0 | P | club | | S | | | |
| w 17 | Mon 20/4 | ACT Street Series: Deakin North - CANCELLED | Orienteering ACT | Orienteering ACT | 0 | P | loc | | M | | | |
| Melbourne PAS Monday Autumn Series 3 - Highbury Hill | Orienteering Victoria | Orienteering Victoria | - | P | loc | | M | N | | |
| Tue 21/4 | Night Nav - Ashgrove East | Ugly Gully Orienteers | Orienteering Queensland | 0 | | club | | L | N | | |
| Melbourne PAS Tuesday Autumn Series 4 - Moonee Ponds | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | N | | |
| Wed 22/4 | Cancelled - COVID 19 / Newcastle Night Champs (Wallsend) | Newcastle Orienteering Club | Orienteering NSW | - | | club | | M | N | | |
| Melbourne PAS Wednesday Autumn Classic Series 3 - Blind Creek | Dandenong Ranges Orienteering Club | Orienteering Victoria | - | P | loc | | M | N | | |
| Thu 23/4 | Chermside Hills, Chermside. Bush POSTPONED | Orienteering Queensland | Orienteering Queensland | - | | club | | L | | | |
| Fri 24/4 | | | | | | | | | | | |
| Sat 25/4 | Deferred - NSW Rogaining 12/6hr Autumngaine |  NSW Rogaining Association | Orienteering NSW | - | FP | loc | | L | | | |
| Mt Nelson - Southern Saturday Series #1 - CANCELLED | Australopers | Orienteering Tasmania | 0 | | loc | | L | | | |
| **Postponed** National Orienteering League (NOL) Round 3 – Sprint 1 – Gold Coast | Orienteering Queensland | Orienteering Queensland | - | | nat | | S | | | |
| Bendigo Bush Classic 4 - Lockwood | Bendigo Orienteers | Orienteering Victoria | 0 | | club | | L | | | |
| Melbourne PAS Saturday Series 3 - Darebin Parklands - Park | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | | | |
| Sun 26/4 | Stephensdale - North Local #1 - CANCELLED |  Esk Valley | Orienteering Tasmania | 0 | | loc | | M | | | |
| **Postponed** National Orienteering League (NOL) Round 3 – Sprint 2 – Gold Coast, sprint Qualifier | Orienteering Queensland | Orienteering Queensland | - | | nat | | S | | | |
| **Postponed** National Orienteering League (NOL) Round 3 – Sprint 2 – Gold Coast, sprint Final | Orienteering Queensland | Orienteering Queensland | - | | nat | | S | | | |
| Cancelled - COVID 19 / NOY2 - Wallaroo | Newcastle Orienteering Club | Orienteering NSW | - | | club | | L | | | |
| Cancelled - COVID 19 / Metroleague #2 (Postponed) |  Western and Hills Orienteers | Orienteering NSW | - | | loc | | M | | | |
| POSTPONED - Vic Autumn 3 - Glenlyon Forest, Glenlyon |  Central Highlands Orienteering Club
Orienteering Victoria | Orienteering Victoria | - | | sta | | L | | 23/4 | |
| Waggaroos-AWOC interclub #2 (Cancelled) | Wagga and Riverina Occasional Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Cobbler Creek Cancelled |  Yalanga Orienteers | Orienteering SA | 0 | FM | club | | L | | | |
| MTBO 2 Bibra Lake (semi-urban) - CANCELLED |  Bibbulmun Orienteers
Orienteering WA | Orienteering WA | 0 | M | club | | L | | | |
| w 18 | Mon 27/4 | ACT Street Series: Weston - CANCELLED | Orienteering ACT | Orienteering ACT | 0 | P | loc | | M | N | | |
| Melbourne PAS Monday Autumn Series 4 - Surrey Dive | Orienteering Victoria | Orienteering Victoria | - | P | loc | | M | N | | |
| Tue 28/4 | Night Nav - Rosalie BCC | Ugly Gully Orienteers | Orienteering Queensland | - | FP | club | | L | | | |
| Melbourne PAS Tuesday Autumn Series 5 - Altona | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | N | | |
| Wed 29/4 | Melbourne PAS Wednesday Autumn Classic Series 4 - Templestowe Heights |  Victorian ARDF Group | Orienteering Victoria | - | P | loc | | M | N | | |
| Thu 30/4 | Secondary Series #1 17 Mile Rocks - Rocks Riverside Reserve | Orienteering Queensland | Orienteering Queensland | - | FP | loc | | S | | | |
| Pegg's Lookout. Bush POSTPONED | Orienteering Queensland | Orienteering Queensland | - | | club | | L | | | |
| Fri 1/5 | | | | | | | | | | | |
| Sat 2/5 | 7 Mile Beach - Southern Saturday Series #2 - CANCELLED | Australopers | Orienteering Tasmania | 0 | | loc | | L | | | |
| Vic MTBO Vic Series #2 - Wombat Station | Bayside Kangaroos Orienteers | Orienteering Victoria | - | M | sta | | L | | 29/4 | |
| SOS Hills District |  Bold Horizons Event Organiser | Orienteering NSW | 0 | FP | loc | | M | | | |
| SOS Northside | Bold Horizons Event Organiser | Orienteering NSW | 0 | FP | loc | | M | | | |
| QLD Minis Camp | Orienteering Queensland | Orienteering Queensland | 6 | | club | | L | | 25/4* | |
| ACT Metro Series: Junior League #1, Weston Park - CANCELLED |  Bushflyers | Orienteering ACT | 0 | | loc | | S | | | |
| ACT Metro Series Season Pass - CANCELLED | Orienteering ACT | Orienteering ACT | 1 | | loc | | M | | 4/9* | |
| Bendigo Bush Classic 5 - Diamond Hill North | Bendigo Orienteers | Orienteering Victoria | 0 | | club | | L | | | |
| Melbourne PAS Saturday Series 4 - Tatterson | Dandenong Ranges Orienteering Club | Orienteering Victoria | - | P | loc | | M | | | |
| Sun 3/5 | QLD Minis Camp | Orienteering Queensland | Orienteering Queensland | 6 | | club | | L | | 25/4* | |
| ACT Classic Series: Relay, Mt Majura West - CANCELLED | Abominable O-Men | Orienteering ACT | 0 | | loc | R | M | | | |
| Vic Autumn 4 - Sailor's Diggings, Daylesford | Bayside Kangaroos Orienteers
Orienteering Victoria | Orienteering Victoria | - | | sta | | L | | 30/4 | |
| Cancelled - COVID 19 / Central Coast Winter Series 1 - Kariong |  Central Coast Orienteers | Orienteering NSW | - | | loc | | M | | | |
| Cancelled - COVID 19 / Bush Series #3 Oaky Creek | Goldseekers Orienteers | Orienteering NSW | - | | club | | L | | | |
| Cancelled - COVID 19 / DUO Adventure - Appin | Orienteering NSW
 Uringa Orienteers | Orienteering NSW | - | FM | club | | L | | 30/4* | |
| Cancelled - COVID 19 / Armidale Bush-O | Northern Tablelands Orienteering Club | Orienteering NSW | - | | loc | | M | | | |
| Shepherds Hill - CANCELLED |  Tjuringa Orienteers | Orienteering SA | 0 | | club | | L | | | |
| Wild Dog HIll CANCELLED | Saltbush Orienteers | Orienteering SA | 0 | | club | | L | | | |
| Kapinnie Lakes - CANCELLED | Lincoln Orienteers | Orienteering SA | 0 | | club | | L | | | |
| Bush 1 Mt Billy SE / Helena Junction - CANCELLED | Bibbulmun Orienteers
Orienteering WA | Orienteering WA | 0 | | club | | L | | | |
| East Bunbury (SWOT Urban series 7) - CANCELLED | South-West Orienteering Trekkers | Orienteering WA | 0 | | club | | S | | | |
| w 19 | Mon 4/5 | QLD Minis Camp | Orienteering Queensland | Orienteering Queensland | 6 | | club | | L | | 25/4* | |
| Melbourne PAS Monday Autumn Series 5 - Koonung Heights | Orienteering Victoria | Orienteering Victoria | - | P | loc | | M | N | | |
| Tue 5/5 | Riverina Schools Championships - Postponed | Wagga and Riverina Occasional Orienteers | Orienteering NSW | 0 | | loc | | M | | | |
| Melbourne PAS Tuesday Autumn Series 6 - North Melbourne | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | N | | |
| Wed 6/5 | Mid Week Training Mt Crawford Forest Watts Gully - CANCELLED | Orienteering SA | Orienteering SA | 0 | | loc | | L | | | |
| Melbourne PAS Wednesday Autumn Classic Series 5 - Camberwell | Bayside Kangaroos Orienteers | Orienteering Victoria | - | P | loc | | M | N | | |
| Thu 7/5 | Gap Creek East, Mt Coot-tha, Bush POSTPONED | Orienteering Queensland | Orienteering Queensland | - | | club | | L | | | |
