| 2-5 Dec 2020 | AK/AIU Antidoping Conference for U20 | (KEN) | |
| 5-Dec-20 | Standard Chartered Singapore Marathon | Singapore (SGP) | Results |
| 6-Dec-20 | Maratón Valencia Trinidad Alfonso EDP | Valencia (ESP) | Results |
| 6-Dec-20 | Marathon COMAR de la ville de Tunis | Tunis (TUN) | Results |
| 6-Dec-20 | The 74th Fukuoka International Open Marathon Championships | Fukuoka (JPN) | Results |
| 6-Dec-20 | SILVER – Grande Prêmio Brasil Caixa | COTP Stadium, São Paulo (BRA) | Results |
| 6-Dec-20 | SCO Kunming International Marathon | Kunming (CHN) | Results |
| 11-Dec-20 | ADNOC Abu Dhabi Marathon | Abu Dhabi (UAE) | Results |
| 13-Dec-20 | Shanghai International Half Marathon | Shanghai (CHN) | Results |
| 13-Dec-20 | Guangzhou Marathon | Guangzhou (CHN) | Results |
| 13-Dec-20 | Zurich Maratón Málaga | Málaga (ESP) | Results |
| 15-Dec-20 | AK 70th Anniversary Celebrations | Nairobi(KEN) | |
| 19-Dec-20 | 2nd AK Cross Country Championships | Mosoriot University | Results |
| 20-Dec-20 | Tata Steel Kolkata 25K | Kolkata (IND) | Results |
| 20-Dec-20 | Shenzhen Marathon | Shenzhen (CHN) | Results |
| 20-Dec-20 | Taipei Marathon | Taipei City (TPE) | Results |
| 20-Dec-20 | Bangsaen21 Half Marathon | Chon Buri (THA) | Results |
| 27-Dec-20 | Corrida Pédestre Internationale de Houilles | Houilles (FRA) | Results |
| 27-Dec-20 | Shantou Marathon | Shantou (CHN) | Results |
| 31-Dec-20 | Nationale-Nederlanden San Silvestre Vallecana | Madrid (ESP) | Results |
| 31-Dec-20 | Corrida Internacional de São Silvestre | São Paulo (BRA) | |
| 31-Dec-20 | BOclassic Südtirol | Bolzano (ITA) | Results |
