| Wed 20/1 - Fri 22/1 | 2021 January Summer Camp St Helens |  Orienteering Tasmania | Orienteering Tasmania | 32 | | sta | | P | | | |
| Sat 6/3 | St Helens - East Coast 3 Days - Day 1 Chiron Chaos |  Esk Valley | Orienteering Tasmania | 101 | | sta | | M | | 28/2 |  |
| Sun 7/3 | St Helens - East Coast 3 Days - Day 2 Siamese - Long - OST 1 | Esk Valley | Orienteering Tasmania | 114 | | sta | | L | | 28/2 | |
| Mon 8/3 | St Helens - East Coast 3 Days - Day 3 Littlechild Creek - Middle - OST 2 |  Australopers | Orienteering Tasmania | 111 | | sta | | M | | 5/3 | |
| Sun 21/3 | 2021 NSW State League #2 and ACT League #1 - Wattle Ridge |  Big Foot Orienteers
 Orienteering ACT | Orienteering NSW
Orienteering ACT | 180 | | sta | | L | | 11/3 | |
| Sun 28/3 | Vic MTBO Series 1 - Bells Reef, Daylesford |  Bayside Kangaroos Orienteers | Orienteering Victoria | - | M | sta | | L | | | |
| Sun 28/3 | Stonehenge - Tas Schools Champs (Schools Selection Event 1) Southern Local #3 | Australopers | Orienteering Tasmania | 1 | | sta | | M | | 23/3 | |
| Fri 2/4 | 2021 - Aust 3 Days - Family Relay Entry only |  Bennelong Northside Orienteers
 Central Coast Orienteers
 Goldseekers Orienteers
 Orienteering NSW | Orienteering NSW | 40 | | sta | R | L | | 7/3 | |
| Fri 2/4 | 2021 - CSU - Public Sprint | Bennelong Northside Orienteers
Goldseekers Orienteers
Orienteering NSW | Orienteering NSW | 339 | | sta | | S | | 7/3 | |
| Thu 15/4 | 2021 NSW Schools Team nominations | Orienteering NSW | Orienteering NSW | 4 | | sta | | M | | 14/4* | |
| Sun 18/4 | OY4 - Griffith Uni Nathan campus - QLD Sprint Champs |  Ugly Gully Orienteers | Orienteering Queensland | - | | sta | | S | | | |
| Sat 24/4 | Middle Distance - Wiela-Bunyip Reach - NOL and WRE Event |  Orienteering SA
 Yalanga Orienteers | Orienteering SA | - | | sta | | M | | | |
| Sun 25/4 | SA Long Distance Championships and Long NOL - Crooked Straight |  Onkaparinga Hills Orienteering Club
Orienteering SA | Orienteering SA | - | | sta | | L | | | |
| Sun 2/5 | ACT Classic Series: ACT League #3, Mt Clear |  Bushflyers | Orienteering ACT | - | | sta | | L | | | |
| Sun 2/5 | Stag's Head - OST 3 - Schools Selection Event 2 | Australopers | Orienteering Tasmania | - | | sta | | L | | | |
| Sun 2/5 | Vic Autumn 3 - Boundary Creek, Glenlyon |  Yarra Valley Orienteering Club | Orienteering Victoria | - | | sta | | L | | | |
| Sat 15/5 | 2021 Wildfire Sports Autumn Classics Prelude Sprint | Orienteering ACT
Orienteering NSW
 Red Roos | Orienteering ACT
Orienteering NSW | 2 | | sta | | S | | 25/4 | |
| Sun 23/5 | Royal George - OST 4 | Australopers | Orienteering Tasmania | - | | sta | | L | | | |
| Sun 23/5 | Vic Autumn 4 - Mt Tarrengower, Maldon |  Nillumbik Emus Orienteering Club | Orienteering Victoria | - | | sta | | L | | 19/5 | |
| Sun 30/5 | Vic Autumn 5 - Glenlyon Forest, Glenlyon |  Central Highlands Orienteering Club | Orienteering Victoria | - | | sta | | L | | | |
| Sun 6/6 | ACT Classic Series: Jim Sawkins Memorial Handicap, ACT League #6, Stringybark Hill | Red Roos | Orienteering ACT | - | | sta | | L | | | |
| Sat 12/6 - Mon 14/6 | 2021 Queens Birthday 3 Days / NSW State League 5 to 7 - Multi Day Entry |  Newcastle Orienteering Club | Orienteering NSW | - | | sta | | M | | | |
| Sat 12/6 - Mon 14/6 | Eppalock Long Weekend |  Bendigo Orienteers
 Dandenong Ranges Orienteering Club
 Melbourne Forest Racers | Orienteering Victoria | - | | sta | | L | | 3/6 | |
| Sun 20/6 | Springvale (Campania) - OST 5 | Australopers | Orienteering Tasmania | - | | sta | | L | | | |
| Sun 27/6 | ACT Classic Series: ACT League #7, The Gib |  Parawanga Orienteers | Orienteering ACT | - | | sta | | L | | | |
| Sun 4/7 | Lovelybanks - OST 6 | Australopers | Orienteering Tasmania | - | | sta | | L | | | |
| Sun 11/7 | ACT Classic Series: ACT League #8, TBA | Bushflyers | Orienteering ACT | - | | sta | | L | | | |
| Sat 17/7 | NSW State League #8 |  Hastings Orienteering Group | Orienteering NSW | - | | sta | | S | | | |
| Sun 18/7 | NSW State League #9 | Hastings Orienteering Group | Orienteering NSW | - | | sta | | M | | | |
| Sat 24/7 | 2021 QLD Schools Champs - Sprint - venue tbc |  Orienteering Queensland | Orienteering Queensland | - | | sta | | S | | 17/7 | |
| Sat 24/7 | 2021 QLD Schools Champs - Hagaby - Samford | Orienteering Queensland | Orienteering Queensland | - | | sta | | L | | 17/7 | |
| Sun 25/7 | Pittwater - Southern Regional Championship OST 7 | Australopers | Orienteering Tasmania | - | | sta | | L | | | |
| Sun 25/7 | 2021 QLD Schools Champs - Long Distance - Kurwongbah | Orienteering Queensland | Orienteering Queensland | - | | sta | | L | | | |
| Sun 25/7 | MTBO 5 Dryandra WA Long Distance Championships |  Kulgun 225 Orienteers
 Orienteering WA | Orienteering WA | - | M | sta | | L | | | |
| Sun 1/8 | ACT Classic Series: ACT League #9, Picaree Hill | Parawanga Orienteers | Orienteering ACT | - | | sta | | L | | | |
| Sun 8/8 | Russell Plains - Northern Local #4 & Northern Classic OST 8 | Esk Valley | Orienteering Tasmania | - | | sta | | L | | | |
| Sun 8/8 | MTBO 6 Lake Leschenaultia WA Middle Distance Championships |  Bibbulmun Orienteers
Orienteering WA | Orienteering WA | - | M | sta | | M | | | |
| Sun 15/8 | Vic Spring 1 - Sailors Diggings, Daylesford | Bayside Kangaroos Orienteers | Orienteering Victoria | - | | sta | | L | | | |
| Sun 15/8 | Bush 10 Malmalling WA Middle Distance Championships |  LOST
Orienteering WA | Orienteering WA | - | | sta | | M | | | |
| Sun 22/8 | Vic Spring 2 - Lauder Mine, Sandon | Nillumbik Emus Orienteering Club | Orienteering Victoria | - | | sta | | L | | | |
| Sat 28/8 | NSW Schools Championships - Sprints and State League #12 |  Uringa Orienteers | Orienteering NSW | - | | sta | | S | | | |
| Sun 29/8 | NSW School Championships - State League #13 |  Western and Hills Orienteers | Orienteering NSW | - | | sta | | M | | | |
| Sun 29/8 | Vic Spring 3 - Enfield SF, Enfield |  Eureka Orienteers | Orienteering Victoria | - | | sta | | L | | | |
| Sun 29/8 | Paradise - SA MIddle Distance Championships |  Tjuringa Orienteers | Orienteering SA | - | | sta | | M | | | |
| Sat 4/9 - Sun 5/9 | QLD Long Champs - Granite Belt |  Bullecourt Boulder Bounders
Orienteering Queensland
 Range Runners Orienteering Club | Orienteering Queensland | - | | sta | | L | | | |
| Sat 18/9 | NavDash 7 Carine SHS WA Sprint Championships | Orienteering WA
 Wullundigong Orienteers of the West | Orienteering WA | - | FP | sta | | S | | | |
| Sun 19/9 | Bush 14 Hill Park Dale WA Long Distance Championships | Kulgun 225 Orienteers
Orienteering WA | Orienteering WA | - | | sta | | L | | | |
| Tue 28/9 | Turbo Chook 3 Days - Bicheno & St Helens - Public Event | Orienteering Tasmania | Orienteering Tasmania | 10 | | sta | | S | | 22/8 | |
| Fri 1/10 | Model Event - St Helens Area | Orienteering Tasmania | Orienteering Tasmania | 6 | | sta | | M | | 15/8 | |
| Sun 3/10 | Tasmanian Middle Distance Championships - Rajah Rock, Avoca | Orienteering Tasmania | Orienteering Tasmania | 17 | | sta | | M | | 22/8 | |
