| WMM = part of Abbot World Marathon Majors |
| January | |
| 05 | Xiamen, China |
| 20 | Chevron; Houston, Texas |
| 24 | Dubai, United Arab Emirates |
| 26 | Women’s; Osaka, Japan |
| February | |
| 01 | Oita, Japan |
| 08 | Standard Chartered; Hong Kong |
| 29 | WMM; Tokyo, Japan |
| March | |
| 07 | Women’s; Nagoya, Japan |
| 08 | Lake Biwa Mainichi; Otsu, Japan |
| Los Angeles, California | |
| 22 | Seoul, South Korea |
| 29 | Rome, Italy |
| April | |
| 04 | Paris, France |
| 05 | Daegu, South Korea |
| Rotterdam, Netherlands | |
| 19 | Hamburg, Germany |
| Vienna, Austria | |
| 20 | WMM; Boston, Massachusetts (postponed) |
| 26 | WMM; London, England (postponed) |
| Hannover, Germany | |
| May | |
| 03 | Prague, Czech Republic |
| 24 | Ottawa, Canada |
| June | |
| 20 | Grandma’s; Duluth, Minnesota |
| July | |
| 05 | Gold Coast; Queensland, Australia |
| August | |
| September | |
| 19 | Sydney, Australia |
| October | |
| 04 | WMM; London, England |
| 17 | World Half-Marathon Championships, Gdynia, Poland |
| 17 | Beijing, China |
| November |
| December | |
| 06 | Fukuoka, Japan |
| 20 | Marathon Project, Chandler, Arizona |
| Canceled/Postponed/Virtual (original dates) | |
| 04/20 | WMM; Boston, Massachusetts |
| /09/27 | WMM; Berlin, Germany |
| 10/04 | Twin Cities; Minneapolis, Minnesota |
| 10/11 | WMM; Chicago, Illinois |
| 10/11 | Eindhoven, Netherlands |
| 10/18 | Amsterdam, Netherlands |
| 10/18 | Toronto, Ontario |
| 10/25 | Frankfurt, Germany |
| 10/25 | Venice, Italy |
| 11/01 | WMM; New York, New York |
| 11/06 | Valencia, Spain |
| 12/06 | Cal International; Sacramento, California |
| 12/13 | Honolulu, Hawai‘i |