| 30 Dec - 1 Jan | Thailand International Orienteering Championship 2019 |  Thailand | Asia | F | National Event | | | |
| 3 Jan | Big 5 O-week |  South Africa | Africa | F | World Ranking Event | S | |  |
| 25 Jan | Norte Alentejano O' Meeting - Sprint |  Portugal | Europe | F | World Ranking Event | S | | |
| 26 Jan | Norte Alentejano O' Meeting - Middle | Portugal | Europe | F | World Ranking Event | M | | |
| 1 Feb | Premi Comunitat Valenciana El Pinos |  Spain | Europe | F | World Ranking Event | L | | |
| 2 Feb | Premi Comunitat Valenciana El Pinos | Spain | Europe | F | World Ranking Event | M | | |
| 15 Feb | Maximus O-Meeting (Middle) | Spain | Europe | F | World Ranking Event | M | | |
| 15 Feb - 16 Feb | High Level Event Seminar 2020 |  International Orienteering Federation | | F | | L | | |
| 15 Feb | Maximus O-Meeting (Sprint) | Spain | Europe | F | World Ranking Event | S | | |
| 16 Feb | Maximus O-Meeting (Long) | Spain | Europe | F | World Ranking Event | L | | |
| 21 Feb | Antalya Training Competitions |  Turkey | Europe | F | World Ranking Event | L | | |
| 22 Feb | Antalya Training Competitions | Turkey | Europe | F | World Ranking Event | M | | |
| 22 Feb | Israel Open 2020 - day2 |  Israel | Europe | F | World Ranking Event | | | |
| 23 Feb | Antalya Training Competitions | Turkey | Europe | F | World Ranking Event | S | | |
| 23 Feb | Portugal O Meeting 2020 | Portugal | Europe | F | World Ranking Event | L | | |
| 29 Feb | XXXII MURCIA COSTA CÁLIDA | Spain | Europe | F | World Ranking Event | L | | |
| 29 Feb | XXXII MURCIA COSTA CÁLIDA | Spain | Europe | F | World Ranking Event | S | | |
| 29 Feb | Meeting Internacional de Orientação de Arraiolos 2020 | Portugal | Europe | F | World Ranking Event | M | | |
| 1 Mar | XXXII MURCIA COSTA CÁLIDA | Spain | Europe | F | World Ranking Event | M | | |
| 7 Mar | Melbourne Sprint Weekend WRE |  Australia | Oceania | F | World Ranking Event | S | | |
| 7 Mar | Málaga Capital Europea del Deporte 2020 | Spain | Europe | F | World Ranking Event | S | | |
| 8 Mar | Málaga Capital Europea del Deporte 2020 | Spain | Europe | F | World Ranking Event | S | | |
| 14 Mar | Copa Sul 2020 |  Brazil | South America | F | World Ranking Event | L | | |
| 21 Mar | Black Sea - 2020 |  Russian Federation | Europe | F | World Ranking Event | M | | |
| 21 Mar | Bergen Sprint Camp |  Norway | Europe | F | World Ranking Event | S | | |
| 21 Mar | MOC - Sprint Race Tour - Coppa Italia Sprint 1^ pr. |  Italy | Europe | F | World Ranking Event | S | | |
| 22 Mar | Black Sea - 2020 | Russian Federation | Europe | F | World Ranking Event | S | | |
| 22 Mar | MOC - Sprint Race Tour - Coppa Italia Sprint 2^ pr. | Italy | Europe | F | World Ranking Event | S | | |
| 27 Mar | Danish Spring, sprint |  Denmark | Europe | F | World Ranking Event | S | | |
| 28 Mar | Danish Spring, middle | Denmark | Europe | F | World Ranking Event | M | | |
| 29 Mar | O-Vesna, Ukrainian Championship Long |  Ukraine | Europe | F | World Ranking Event | L | | |
| 29 Mar | Beograd-Open-2020 |  Serbia | Europe | F | World Ranking Event | S | | |
| 29 Mar | Danish Spring, long | Denmark | Europe | F | World Ranking Event | L | | |
| 29 Mar | Russian event "Pastukhov Memorial" | Russian Federation | Europe | F | World Ranking Event | M | | |
| 4 Apr | 3. Nationaler OL |  Switzerland | Europe | F | World Ranking Event | M | | |
| 4 Apr | Kurzemes Pavasaris (Middle) |  Latvia | Europe | F | World Ranking Event | M | | |
| 5 Apr | Knock-Out Sprint (4. Nationaler OL) | Switzerland | Europe | F | World Ranking Event | S | | |
| 5 Apr | Kurzemes Pavasaris (Long) | Latvia | Europe | F | World Ranking Event | L | | |
| 10 Apr | New Zealand Sprint Orienteering Championships 2020 |  New Zealand | Oceania | F | World Ranking Event | S | | |
| 10 Apr | Australian 3-Days 2020 Sprint WRE | Australia | Oceania | F | World Ranking Event | S | | |
| 10 Apr | Jan Kjellstrom 2020 Day 1 - Sprint |  Great Britain | Europe | F | World Ranking Event | S | | |
| 11 Apr | Jan Kjellstrom 2020 Day 2 - Middle | Great Britain | Europe | F | World Ranking Event | M | | |
| 12 Apr | New Zealand Middle Orienteering Championship 2020 | New Zealand | Oceania | F | World Ranking Event | M | | |
| 12 Apr | Australian 3-Days 2020 Long WRE | Australia | Oceania | F | World Ranking Event | L | | |
| 11 Apr | MEDITERRANEAN CHAMPIONSHIPS IN ORIENTEERING |  France | Europe | F | World Ranking Event | S | | |
| 12 Apr | MCO & Nationale Sud-Ouest Long distance | France | Europe | F | World Ranking Event | L | | |
| 12 Apr | Jan Kjellstrom 2020 Day 3 - Long | Great Britain | Europe | F | World Ranking Event | L | | |
| 13 Apr | MCO & Nationale Sud-Ouest Middle distance | France | Europe | F | World Ranking Event | M | | |
| 18 Apr | Open Grodno Cup 2020 |  Belarus | Europe | F | World Ranking Event | L | | |
| 18 Apr | Coppa Italia Middle Distance 5^ pr. | Italy | Europe | F | World Ranking Event | M | | |
| 19 Apr | Open Grodno Cup 2020 | Belarus | Europe | F | World Ranking Event | S | | |
| 19 Apr | Targovishte Trophy 2020 - Sprint |  Bulgaria | Europe | F | World Ranking Event | S | | |
| 19 Apr | Knock out sprint Kerava |  Finland | Europe | F | World Ranking Event | S | | |
| 19 Apr | Czech Cup |  Czech Republic | Europe | F | World Ranking Event | M | | |
| 24 Apr | SOL sprint | Norway | Europe | F | World Ranking Event | S | | |
| 25 Apr | Halden O-Meeting Middle | Norway | Europe | F | World Ranking Event | M | | |
| 25 Apr | FinnSpring | Finland | Europe | F | World Ranking Event | L | | |
| 25 Apr | Pavasario Taure (Spring Cup) |  Lithuania | Europe | F | World Ranking Event | M | | |
| 26 Apr | Halden O-Meeting Long | Norway | Europe | F | World Ranking Event | L | | |
| 26 Apr | Pavasario Taure (Spring Cup) | Lithuania | Europe | F | World Ranking Event | L | | |
| 1 May - 5 May | Asian Orienteering Championships 2020 |  Korea, Republic of | Asia | F | Regional Championships | | | |
| 1 May | Brazilian Orienteering Championships | Brazil | South America | F | World Ranking Event | S | | |
| 2 May | Brazilian Orienteering Championships | Brazil | South America | F | World Ranking Event | L | | |
| 3 May | Brazilian Orienteering Championships | Brazil | South America | F | World Ranking Event | M | | |
| 5 May | WMG/WMOC2021 Kansai Pre-event Three days |  Japan | Asia | F | World Ranking Event | M | | |
| 6 May | WMG/WMOC2021 Kansai Pre-event Three days | Japan | Asia | F | World Ranking Event | M | | |
| 8 May | Czech cup sprint | Czech Republic | Europe | F | World Ranking Event | S | | |
| 8 May | Swedish League #3 |  Sweden | Europe | F | World Ranking Event | S | | |
| 9 May | Vilnius 2020 | Lithuania | Europe | F | World Ranking Event | L | | |
| 9 May | Campionati Italiani Sprint Distance | Italy | Europe | F | World Ranking Event | S | | |
| 9 May | Championnat de France de Moyenne Distance | France | Europe | F | World Ranking Event | M | | |
| 10 May | Swedish League #4 | Sweden | Europe | F | World Ranking Event | L | | |
| 10 May | Metropolis of South East Europe 2020 | Serbia | Europe | F | World Ranking Event | M | | |
| 13 May - 13 Jun | [Online] Let's Go Thailand! Virtual Orienteering Competition | Thailand | Asia | F | National Event | L | | |
| 16 May | Campionati Italiani Middle Distance | Italy | Europe | F | World Ranking Event | M | | |
| 20 May - 24 May | Orienteering World Cup Round 1 | Switzerland | Europe | F | World Ranking Event | | | |
| 21 May | [Online] MOOVID - Milano Orbital Orienteering | Italy | Europe | FT | National Event | L | | |
| 22 May | Carpathian O Trophy |  Romania | Europe | F | World Ranking Event | M | | |
| 23 May | Finnish Championship Middle Distance | Finland | Europe | F | World Ranking Event | M | | |
| 23 May | [Online] Minecraft-O Event 2 | Australia | Oceania | F | National Event | L | | |
| 24 May | DM Sprint | Denmark | Europe | F | World Ranking Event | S | | |
| 29 May | Capital Cup | Ukraine | Europe | F | World Ranking Event | M | | |
| 30 May | Baltic championship 2020 | Lithuania | Europe | F | World Ranking Event | L | | |
| 30 May | 3 Days of Belgium |  Belgium | Europe | F | World Ranking Event | M | | |
| 30 May | Capital Cup | Ukraine | Europe | F | World Ranking Event | S | | |
| 30 May | Czech cup 2020 | Czech Republic | Europe | F | World Ranking Event | M | | |
| 30 May | WOC2020 Selection race | Denmark | Europe | F | World Ranking Event | S | | |
| 31 May | Queens Birthday Orienteering 2020 | New Zealand | Oceania | F | World Ranking Event | M | | |
| 31 May | Czech cup 2020 | Czech Republic | Europe | F | World Ranking Event | L | | |
| 31 May | Swedish Championship Sprint | Sweden | Europe | F | World Ranking Event | S | | |
| 31 May | WOC2020 Selection race | Denmark | Europe | F | World Ranking Event | S | | |
| 5 Jun | Grano Games, sprint | Finland | Europe | F | World Ranking Event | S | | |
| 5 Jun | FIF Sommerweekend, sprint | Denmark | Europe | F | World Ranking Event | S | | |
| 6 Jun | Belarus Sprint Orienteering Championships | Belarus | Europe | F | World Ranking Event | S | | |
| 6 Jun | Tallinn Sprint Weekend 2020 |  Estonia | Europe | F | World Ranking Event | S | | |
| 6 Jun | Championnat de France de Longue Distance | France | Europe | F | World Ranking Event | L | | |
| 6 Jun | FIF Sommerweekend, middle | Denmark | Europe | F | World Ranking Event | M | | |
| 7 Jun | FIF Sommerweekend, long | Denmark | Europe | F | World Ranking Event | L | | |
| 13 Jun | Singapore Orienteering League 2020: Race 1 |  Singapore | Asia | F | World Ranking Event | S | | |
| 13 Jun | Troféu Sudeste 2020 | Brazil | South America | F | World Ranking Event | L | | |
| 14 Jun | Singapore Orienteering League 2020: Race 2 | Singapore | Asia | F | World Ranking Event | S | | |
| 16 Jun | Russian competition "Baltic Games" | Russian Federation | Europe | F | World Ranking Event | M | | |
| 18 Jun | Russian competition "Baltic Games" | Russian Federation | Europe | F | World Ranking Event | M | | |
| 19 Jun - 22 Jun | European Youth Orienteering Championships 2020 |  Hungary | Europe | F | Regional Championships | | | |
| 26 Jun | Norsk O-Festival sprint | Norway | Europe | F | World Ranking Event | S | | |
| 27 Jun | Kapa 2020 3-days (Day2) | Latvia | Europe | F | World Ranking Event | M | | |
| 27 Jun | O-Festival mellom | Norway | Europe | F | World Ranking Event | M | | |
| 27 Jun - 28 Jun | [Online] Imagin-O | Turkey | Europe | F | National Event | L | | |
| 28 Jun - 3 Jul | Junior World Orienteering Championships 2020 | Turkey | Europe | F | World Ranking Event
Junior World Championships | | | |
| 4 Jul - 5 Jul | [Online] Imagin-O | Turkey | Europe | F | National Event | L | | |
| 7 Jul - 11 Jul | Nokian Tyres World Orienteering Championships 2020 - Sprint | Denmark | Europe | F | World Championships
World Ranking Event | | | |
| 12 Jul - 24 Jul | EUSA - European University Games 2020 | Serbia | Europe | F | Partner Event | | | |
| 14 Jul - 18 Jul | FISU World University Orienteering Championships 2020 | Russian Federation | Europe | F | Partner Event | | | |
| 17 Jul - 19 Jul | [Online] Lockdown Orienteering - Junior Event | Great Britain | Europe | F | National Event | L | | |
| 18 Jul | Pro Serbia 2020 | Serbia | Europe | F | World Ranking Event | S | | |
| 19 Jul | Nationale Sud-Est | France | Europe | F | World Ranking Event | L | | |
| 25 Jul | EM-katsastukset (EC qualification) | Finland | Europe | F | World Ranking Event | M | | |
| 25 Jul - 27 Jul | North American Orienteering Championships (Senior, Junior, Youth) |  United States | North America | F | World Ranking Event
Regional Championships | | | |
| 26 Jul | EM-katsastukset (EC qualification) | Finland | Europe | F | World Ranking Event | L | | |
| 28 Jul | SIVEN CUP – DAY2 | Bulgaria | Europe | F | World Ranking Event | M | | |
| 1 Aug | BULGARIA CUP – DAY 2 | Bulgaria | Europe | F | World Ranking Event | M | | |
| 1 Aug | Lviv open Cup | Ukraine | Europe | F | World Ranking Event | L | | |
| 7 Aug - 15 Aug | World Masters Orienteering Championships 2020 |  Slovakia | Europe | F | World Masters | | | |
| 15 Aug | Taoyuan Orienteering Championships 2020 |  Chinese Taipei | Asia | F | World Ranking Event | S | | |
| 19 Aug - 23 Aug | Orienteering World Cup Round 2 with European Orienteering Championships 2020 | Estonia | Europe | F | World Ranking Event
Regional Championships | | | |
| 20 Aug | Hungaria Cup, Day 2 | Hungary | Europe | F | World Ranking Event | L | | |
| 21 Aug | Grano Games, Sprint-O | Finland | Europe | F | World Ranking Event | S | | |
| 21 Aug - 25 Aug | Asian Orienteering Championships 2020 | Korea, Republic of | Asia | F | Regional Championships
World Ranking Event | | | |
| 22 Aug | Hungaria Cup, Day 4 | Hungary | Europe | F | World Ranking Event | M | | |
| 28 Aug | Pomerania Grand Prix |  Poland | Europe | F | World Ranking Event | M | | |
| 28 Aug | South East European Orienteering Championships |  Croatia | Europe | F | World Ranking Event | S | | |
| 29 Aug - 30 Aug | Finnish Championship Middle Distance | Finland | Europe | F | World Ranking Event | M | | |
| 29 Aug | Pomerania Grand Prix | Poland | Europe | F | World Ranking Event | L | | |
| 29 Aug | South East European Orienteering Championships | Croatia | Europe | F | World Ranking Event | L | | |
| 29 Aug | Test race II | Switzerland | Europe | F | World Ranking Event | L | | |
| 29 Aug | XIV TROFEO QUIJOTES. 5 DIAS DE ESPAÑA.SERRANÍA DE CUENCA. Stage 5 | Spain | Europe | F | World Ranking Event | M | | |
| 29 Aug | Belarus Sprint Orienteering Championships | Belarus | Europe | F | World Ranking Event | S | | |
| 29 Aug | DM Mellem | Denmark | Europe | F | World Ranking Event | M | | |
| 30 Aug | 8. Nationaler OL (Middle) | Switzerland | Europe | F | World Ranking Event | M | | |
| 30 Aug | Belgian Long Distance Championship | Belgium | Europe | F | World Ranking Event | L | | |
| 3 Sep - 6 Sep | Euromeeting | Czech Republic | Europe | F | World Ranking Event | | | |
| 6 Sep | Schweizermeisterschaft Sprint OL (Sprint) | Switzerland | Europe | F | World Ranking Event | S | | |
| 12 Sep | Finnish Championship Long Distance | Finland | Europe | F | World Ranking Event | L | | |
| 12 Sep | Campionato Italiano Sprint | Italy | Europe | F | World Ranking Event | S | | |
| 13 Sep | Schweizermeisterschaft Landgdistanz OL | Switzerland | Europe | F | World Ranking Event | L | | |
| 13 Sep | Campionato Italiano Long Distance | Italy | Europe | F | World Ranking Event | L | | |
| 13 Sep | DM Lang | Denmark | Europe | F | World Ranking Event | L | | |
| 19 Sep | Finnish Championships in Sprint Orienteering | Finland | Europe | F | World Ranking Event | S | | |
| 22 Sep - 26 Sep | CISM World Military Orienteering Championship |  CISM | CISM | F | | | | |
| 26 Sep | Australian Sprint Distance Championships | Australia | Oceania | F | World Ranking Event | S | | |
| 26 Sep | Pavasario Taure (Spring Cup) | Lithuania | Europe | F | World Ranking Event | M | | |
| 26 Sep | Czech cup 2020 sprint | Czech Republic | Europe | F | World Ranking Event | S | | |
| 26 Sep | Suunto Games in Estonia | Estonia | Europe | F | World Ranking Event | L | | |
| 27 Sep | Australian Middle Distance Championships | Australia | Oceania | F | World Ranking Event | M | | |
| 27 Sep | Pavasario Taure (Spring Cup) | Lithuania | Europe | F | World Ranking Event | M | | |
| 27 Sep | Suunto Games in Estonia | Estonia | Europe | F | World Ranking Event | M | | |
| 1 Oct - 4 Oct | Orienteering World Cup Round 3 - Final | Italy | Europe | F | World Cup
World Ranking Event | | | |
| 3 Oct | Australian Long Distance Championships | Australia | Oceania | F | World Ranking Event | L | | |
| 4 Oct | Beograd-Open-2020 | Serbia | Europe | F | World Ranking Event | S | | |
| 4 Oct | Campionato Italiano Middle | Italy | Europe | F | World Ranking Event | M | | |
| 9 Oct - 18 Oct | (Preliminary dates) - Nokian Tyres World Orienteering Championships 2020 - Sprint | Denmark | Europe | F | World Championships
World Ranking Event | | | |
| 10 Oct | WMG/WMOC2021 Kansai Pre-event Three days | Japan | Asia | F | World Ranking Event | M | | |
| 11 Oct | WMG/WMOC2021 Kansai Pre-event Three days | Japan | Asia | F | World Ranking Event | M | | |
| 17 Oct | Tallinn Sprint Weekend 2020 | Estonia | Europe | F | World Ranking Event | S | | |
| 18 Oct | Coppa Italia Long Distance 12^ pr. | Italy | Europe | F | World Ranking Event | L | | |
| 24 Oct | New Zealand Long Distance Orienteering Championship 2020 | New Zealand | Oceania | F | World Ranking Event | L | | |
| 24 Oct | All-Russian orienteering competition | Russian Federation | Europe | F | World Ranking Event | M | | |
| 24 Oct | Championnat de France de Sprint | France | Europe | F | World Ranking Event | S | | |
| 24 Oct - 26 Oct | European Junior and Youth Orienteering Championships 2020 | Hungary | Europe | F | | | | |
| 24 Oct | Kurzemes Pavasaris (Middle) | Latvia | Europe | F | World Ranking Event | M | | |
| 25 Oct | New Zealand Middle Distance Orienteering Championship 2020 | New Zealand | Oceania | F | World Ranking Event | M | | |
| 24 Oct | Belgian Sprint Championship | Belgium | Europe | F | World Ranking Event | S | | |
| 25 Oct | Kurzemes Pavasaris (Long) | Latvia | Europe | F | World Ranking Event | L | | |
| 27 Oct - 1 Nov | Euromeeting | Czech Republic | Europe | F | World Ranking Event | | | |
| 29 Oct - 1 Nov | South American Orienteering Championships (Senior, Junior, Youth) | Brazil | South America | F | Regional Championships
World Ranking Event | | | |
| 31 Oct | Nenrinpic Sprint | Japan | Asia | F | World Ranking Event | S | | |
| 31 Oct | O-Vesna, Ukrainian Championship Long | Ukraine | Europe | F | World Ranking Event | L | | |
| 1 Nov | Metropolis of South East Europe 2020 | Serbia | Europe | F | World Ranking Event | M | | |
| 14 Nov | WMG/WMOC2021 Kansai Pre-event Three days | Japan | Asia | F | World Ranking Event | M | | |
| 15 Nov | WMG/WMOC2021 Kansai Pre-event Three days | Japan | Asia | F | World Ranking Event | M | | |
| 21 Nov | Panglima TNI International Orienteering Championship 2020 (Borobudur - Sprint) |  Indonesia | Asia | F | World Ranking Event | S | | |
| 22 Nov | Panglima TNI International Orienteering Championship 2020 (Magelang - Middle) | Indonesia | Asia | F | World Ranking Event | M | | |
| 1 Dec - 24 Dec | [Online] TORUS Advent Calendar 2020 | Czech Republic | Europe | FT | National Event | L | | |
| 25 Dec | Hong Kong Annual Orienteering Championships 2020 - Middle Distance |  Hong Kong China | Asia | F | World Ranking Event | M | | |
| 26 Dec | Hong Kong Annual Orienteering Championships 2020 - Sprint | Hong Kong China | Asia | F | World Ranking Event | S | | |
| 30 Dec | THAILAND INTERNATIONAL ORIENTEERING CHAMPIONSHIP 2020 | Thailand | Asia | F | World Ranking Event | S | | |
