| 2021 | P = PreO, T = TempO in fixtures entries below | |
| 3-4 July | WRE | Pre-WTOC 2022, Zakupy, Czech Republic P + T. Details here |
| 20-24 July | World TrailO Championships, Poland P + T. Details and Bulletin 1-2 here POSTPONED TO 2022 | |
| 4 Sept | Baltic Coast event, St. Petersburg, Russia, no other details yet | |
| 10-12 Sept | WRE | Falco Cup, Rykantai, Lithuania T + P. Details here |
| 11 Sept | CLOK TrailO, Easby Abbey, Richmond, N. Yorks | |
| 18-19 Sept | WRE | Nordic Match, Løten, Norway 2P + T |
| 23-24 Oct | WRE | Slovak TrailO weekend, Slovakia T + P. Details here |
| 7 Nov | EBOR Sprint P, 'Breezy Knees' near York | |
| 6-7 Nov | WRE | Rome O-Festival, Italy P + T. Details here |
| 18-19 Dec | WRE | Hong Kong TrailO Championships, Hong Kong China P + T. |
| 2022 | ||
| 25-29 May | European TrailO Championships, Lohja, Finland P + T. Details here | |
| 19-23 July | World TrailO Championships, Jelenia Gora, Poland P + T. |
WRE = IOF World Ranking Event
ECTO = European Cup in TrailO
BriTOL = British TrailO League
BriTOL (British TrailO League) is a national league consisting of only competitions within the UK. You need to attend just over half for a complete set of scores each year. For more details see https://sites.google.com/view/britol/
The following events usually have one or more TrailO competitions along with FootO competitions:
Portugal O-meet, February (PreO)
Lipica Open, Slovenia (PreO)
JK, Easter weekend (TempO + PreO)
British Orienteering Championships and British TrailO Championships (PreO) on the same weekend, same venue
Wawel Cup, Poland, July (PreO)
Swedish O-Ringen, July (5 x PreO)
Scottish 6-Days, July-August (PreO)
Hungaria Cup, August (4 x PreO)
Cerkno Cup, Slovenia, August (PreO)
White Rose Weekend, August (PreO)