| 7 Feb - 12 Feb | European Ski Orienteering Championships 2017 |  Finland | Europe | S | Regional Championships | | |  |
| 8 Feb - 12 Feb | European Youth Ski Orienteering Championships 2017 | Finland | Europe | S | Regional Championships | | | |
| 8 Feb - 12 Feb | Junior World Ski Orienteering Championships 2017 | Finland | Europe | S | Junior World Championships | | | |
| 9 Feb - 12 Feb | World Masters Ski Orienteering Championships 2017 | Finland | Europe | S | World Masters | | | |
| 6 Mar - 11 Mar | World Ski Orienteering Championships 2017 |  Russian Federation | Europe | S | World Championships | | | |
| 14 Apr | Oceania Orienteering Championships - Sprint |  New Zealand | Oceania | F | Regional Championships | S | | |
| 15 Apr | Oceania Orienteering Championships - Long | New Zealand | Oceania | F | Regional Championships | L | | |
| 16 Apr | Oceania Orienteering Championships - Relay | New Zealand | Oceania | F | Regional Championships | R | | |
| 17 Apr | Oceania Orienteering Championships - Middle | New Zealand | Oceania | F | Regional Championships | M | | |
| 23 Apr - 29 Apr | World Masters Orienteering Championships 2017 | New Zealand | Oceania | F | World Masters | | | |
| 24 May - 28 May | Orienteering World Cup Round 1 | Finland | Europe | F | World Cup | | | |
| 2 Jun - 5 Jun | MTB Orienteering World Cup Round 1 |  Austria | Europe | M | World Cup | | | |
| 29 Jun - 2 Jul | European Youth Orienteering Championships 2017 |  Slovakia | Europe | F | Regional Championships | | | |
| 30 Jun - 7 Jul | Nokian Tyres World Orienteering Championships 2017 and World Cup Round 2 |  Estonia | Europe | F | World Championships
World Cup | | | |
| 9 Jul - 16 Jul | Junior World Orienteering Championships 2017 | Finland | Europe | F | Junior World Championships | | | |
| 10 Jul - 15 Jul | World Trail Orienteering Championships |  Lithuania | Europe | T | World Championships | | | |
| 29 Jul - 5 Aug | European MTB Orienteering Championships & World Cup Round 2 & Youth / Junior Championships |  France | Europe | M | Regional Championships
World Cup
World Ranking Event | | | |
| 30 Jul - 4 Aug | World Masters MTB Orienteering Champinonships 2017 | France | Europe | M | World Masters | | | |
| 20 Aug - 24 Aug | Asian Junior and Youth Orienteering Championships |  China | Asia | F | Regional Championships | | | |
| 20 Aug - 26 Aug | World MTBO Championships 2017, Junior World MTBO Championships 2017, World Cup 2017 Round 3 | Lithuania | Europe | M | World Championships
Junior World Championships
World Cup | | | |
| 25 Aug - 27 Aug | Orienteering World Cup Round 3 |  Latvia | Europe | F | World Cup | | | |
| 28 Sep - 1 Oct | Orienteering World Cup Round 4 |  Switzerland | Europe | F | World Cup | | | |
| 27 Nov - 1 Dec | Ski Orienteering World Cup Round 1 | Finland | Europe | S | World Cup | | | |
| 3 Feb - 8 Feb | European Ski Orienteering Championship 2018 and World Cup Round 2 |  Bulgaria | Europe | S | Regional Championships
World Cup
World Ranking Event | | | |
| 4 Feb - 8 Feb | European Youth Ski Orienteering Championships | Bulgaria | Europe | S | Regional Championships | | | |
| 4 Feb - 8 Feb | Junior World Ski Orienteering Championships | Bulgaria | Europe | S | Junior World Championships
World Ranking Event | | | |
| 6 Mar - 10 Mar | Ski Orienteering World Cup Round 3 |  United States | North America | S | World Cup | | | |
| 6 Mar - 10 Mar | World Masters Ski Orienteering Championships 2018 | United States | North America | S | World Masters | | | |
| 28 Apr - 1 May | European Trail Orienteering Championships 2018 | Slovakia | Europe | T | Regional Championships | | | |
| 6 May - 13 May | European Orienteering Championships 2018 & World Cup Round 1 | Switzerland | Europe | F | Regional Championships
World Cup | | | |
| 27 Jun - 1 Jul | European Junior MTB Orienteering Championships |  Hungary | Europe | M | Regional Championships | | | |
| 27 Jun - 1 Jul | European MTB Orienteering Championships and World Cup Round 1 | Hungary | Europe | M | Regional Championships
World Cup
World Ranking Event | | | |
| 27 Jun - 1 Jul | World Masters MTB Orienteering Championships 2018 | Hungary | Europe | M | World Masters | | | |
| 28 Jun - 1 Jul | European Youth Orienteering Championships 2018 | Bulgaria | Europe | F | Regional Championships | | | |
| 1 Jul | World Masters MTB Orienteering unofficial relay | Hungary | Europe | M | World Masters | R | | |
| 6 Jul - 13 Jul | World Masters Orienteering Championships 2018 |  Denmark | Europe | F | World Masters | | | |
| 9 Jul - 14 Jul | Junior World Orienteering Championships | Hungary | Europe | F | Junior World Championships
World Ranking Event | | | |
| 3 Aug - 11 Aug | Nokian Tyres World Orienteering Championships 2018 | Latvia | Europe | F | World Championships
World Cup | | | |
| 4 Aug - 10 Aug | World Trail Orienteering Championships 2018 | Latvia | Europe | T | World Championships | | | |
| 5 Aug - 12 Aug | European Youth MTB Orienteering Championships | Austria | Europe | M | Regional Championships | | | |
| 5 Aug - 12 Aug | World MTB Orienteering Championships & World Cup 2 & Junior World MTB Orienteering Championship | Austria | Europe | M | World Championships
Junior World Championships
World Cup | | | |
| 18 Aug - 21 Aug | North American Orienteering Championships |  Canada | North America | F | Regional Championships
World Ranking Event | | | |
| 30 Aug - 2 Sep | World Cup round 3 & Pre-WOC |  Norway | Europe | F | World Ranking Event
World Cup | | | |
| 21 Sep - 23 Sep | MTB Orienteering World Cup Round 3 |  Portugal | Europe | M | World Cup
World Ranking Event | | | |
| 4 Oct - 7 Oct | World Cup Round 4 |  Czech Republic | Europe | F | World Ranking Event
World Cup | | | |
| 6 Nov | South American Orienteering Championships, long |  Uruguay | South America | F | World Ranking Event
Regional Championships | L | | |
| 6 Nov | South American Orienteering Championships, sprint | Uruguay | South America | F | Regional Championships
World Ranking Event | S | | |
| 7 Nov | South American Orienteering Championships, middle | Uruguay | South America | F | Regional Championships
World Ranking Event | M | | |
| 23 Dec - 26 Dec | Asian Orienteering Championships |  Hong Kong China | Asia | F | Regional Championships
World Ranking Event | | | |
| 6 Feb - 11 Feb | European Ski Orienteering Championships |  Turkey | Europe | S | World Ranking Event
Regional Championships | | | |
| 20 Mar - 24 Mar | European Youth Ski Orienteering Championships 2019 |  Sweden | Europe | S | Regional Championships | | | |
| 20 Mar - 24 Mar | Junior World Ski Orienteering Championships 2019 | Sweden | Europe | S | Junior World Championships
World Ranking Event | | | |
| 20 Mar - 24 Mar | World Ski Orienteering Championships 2019 | Sweden | Europe | S | World Championships
World Ranking Event | | | |
| 21 Mar - 24 Mar | World Masters Ski Orienteering Championships 2019 | Sweden | Europe | S | World Masters | | | |
| 8 Jun - 11 Jun | World Cup Round 1 | Finland | Europe | F | World Cup | | | |
| 8 Jun - 10 Jun | European MTBO Championships and World Cup Round 1 |  Poland | Europe | M | Regional Championships
World Cup
World Ranking Event | | | |
| 23 Jun - 29 Jun | World Trail Orienteering Championships 2019 | Portugal | Europe | T | World Championships
World Ranking Event | | | |
| 28 Jun - 30 Jun | European Youth Orienteering Championships 2019 |  Belarus | Europe | F | Regional Championships | | | |
| 6 Jul - 12 Jul | World Masters Orienteering Championships 2019 | Latvia | Europe | F | World Masters | | | |
| 6 Jul - 12 Jul | Junior World Orienteering Championships 2019 | Denmark | Europe | F | Junior World Championships
World Ranking Event | | | |
| 28 Jul - 3 Aug | World MTB Orienteering Championships 2019 and Junior World MTB Orienteering Championships | Denmark | Europe | M | World Championships
Junior World Championships
World Cup | | | |
| 12 Aug - 17 Aug | Nokian Tyres World Orienteering Championships 2019 | Norway | Europe | F | World Cup
World Ranking Event
World Championships | | | |
| 28 Aug - 1 Sep | Asian Junior and Youth Orienteering Championships 2019 |  Japan | Asia | F | Regional Championships | | | |
| 27 Sep - 29 Sep | World Cup Round 3 | Switzerland | Europe | F | World Cup
World Ranking Event | | | |
| 28 Sep - 6 Oct | Oceania Orienteering Championships |  Australia | Oceania | F | Regional Championships | | | |
| 3 Oct - 6 Oct | European Junior and Youth MTB Orienteering Championships |  Germany | Europe | M | Regional Championships | | | |
| 3 Oct - 6 Oct | World Masters MTB Orienteering Championships 2019 | Germany | Europe | M | World Masters | | | |
| 4 Oct - 6 Oct | MTB Orienteering World Cup Round 3 | Germany | Europe | M | World Cup
World Ranking Event | | | |
| 26 Oct - 29 Oct | World Cup Round 4 - Final | China | Asia | F | World Cup | | | |
| 29 Nov - 2 Dec | Asian Trail Orienteering Championships 2019 | Hong Kong China | Asia | T | Regional Championships | | | |
