| 11 Sep | Testrace Sprint |  Switzerland | Europe | F | World Ranking Event | S | |   |
| 13 Sep | TuMe100, TempO |  Finland | Europe | T | World Ranking Event | T | | |
| 13 Sep | Swiss Championships Middle | Switzerland | Europe | F | World Ranking Event | M | | |
| 14 Sep | TuMe100, PreO | Finland | Europe | T | World Ranking Event | P | | |
| 14 Sep | Camp. Italiani Long |  Italy | Europe | F | World Ranking Event | L | | |
| 14 Sep | ÖSTM Middle (6. Austria Cup 2025) |  Austria | Europe | F | World Ranking Event | M | | |
| 14 Sep | DM Lang |  Denmark | Europe | F | World Ranking Event | L | | |
| 18 Sep - 21 Sep | CX80 World Cup in MTB Orienteering and U23 World MTB Orienteering Championships 2025 |  Bulgaria | Europe | M | World Cup
World Ranking Event | | | |
| 19 Sep | Mentor Silva Cup |  Romania | Europe | F | World Ranking Event | S | 11/9 | |
| 19 Sep | NC sprint |  Aas IL | Europe | F | World Ranking Event | S | 17/9 | |
| 20 Sep | Hungarian Sprint Championships |  Hungary | Europe | F | World Ranking Event | S | 8/9 | |
| 20 Sep | NC mellom | Aas IL | Europe | F | World Ranking Event | M | 17/9 | |
| 20 Sep | Finnish Orienteering Championship, Sprint distance | Finland | Europe | F | World Ranking Event | S | 11/9 | |
| 21 Sep | Mentor Silva Cup | Romania | Europe | F | World Ranking Event | M | 11/9 | |
| 25 Sep - 29 Sep | Orienteering World Cup Round 3/Finals | Switzerland | Europe | F | World Cup | | | |
| 27 Sep | Australian Sprint Distance Championships |  Australia | Oceania | F | World Ranking Event | S | | |
| 27 Sep | IX Campeonato Centroamericano y del Caribe de Orientación |  Costa Rica | North America | F | World Ranking Event | M | 15/9 | |
| 27 Sep | Magaziin Orienteering Games long distance |  Estonia | Europe | F | World Ranking Event | L | 15/9 | |
| 28 Sep | Australian Long Distance Championships | Australia | Oceania | F | World Ranking Event | L | | |
| 28 Sep | IX Campeonato Centroamericano y del Caribe de Orientación | Costa Rica | North America | F | World Ranking Event | S | 15/9 | |
| 28 Sep | Magaziin Orienteering Games middle distance | Estonia | Europe | F | World Ranking Event | M | 15/9 | |
| 4 Oct | Japan Orienteering Championships – Middle distance |  Japan | Asia | F | World Ranking Event | M | | |
| 4 Oct | Deutsche Meisterschaft Lang OL |  Germany | Europe | F | World Ranking Event | L | 25/9 | |
| 4 Oct | Knock Out Pre WOC 2026 | Italy | Europe | F | World Ranking Event | KS | 20/9 | |
| 4 Oct | Norwegian TrailO Festival - Nordic Match |  Norway | Europe | T | World Ranking Event | P | 28/9 | |
| 4 Oct | Norwegian TrailO Festival - Nordic Match | Norway | Europe | T | World Ranking Event | T | 28/9 | |
| 5 Oct | Australian Middle Distance Championships | Australia | Oceania | F | World Ranking Event | M | | |
| 5 Oct | Japan Orienteering Championships – Long distance | Japan | Asia | F | World Ranking Event | L | | |
| 5 Oct | Norwegian TrailO Festival - Nordic Match | Norway | Europe | T | World Ranking Event | P | 28/9 | |
| 5 Oct | Sprint Relay Pre WOC 2026 | Italy | Europe | F | | R | 20/9 | |
| 10 Oct | Brașov O-Meeting | Romania | Europe | F | World Ranking Event | S | 1/10 | |
| 10 Oct | Sprint race | Italy | Europe | F | World Ranking Event | S | | |
| 11 Oct | Brașov O-Meeting | Romania | Europe | F | World Ranking Event | M | 1/10 | |
| 11 Oct | Banat Open 2025 |  Serbia | Europe | F | World Ranking Event | M | 6/10 | |
| 11 Oct | Hungarian Long Distance Championships | Hungary | Europe | F | World Ranking Event | L | | |
