This 2021 competition calendar focuses on all senior meets, a handful of international and national junior competitions, and major 13-15 events.
Most of the competitions listed will get a coverage guide a few weeks before the start of it, where you will be able to find more information for each meet including full schedules, video streaming info, and other related articles.
* denotes meets that are part of the FINA World Series (ASWS).
| Date | Category | Meet | Location |
| Mar 4 – 7 | SR | Olympic Games Qualification Tournament | Tokyo, Japan |
| Mar 24 – 27 | Collegiate | Collegiate National Championships | Palo Alto, Calif., U.S. |
| May 10 – 15 | SR | European Championships | Budapest, Hungary |
| Jun 2 – 6 | Masters | European Masters Championships | Budapest, Hungary |
| Aug 2 – 7 | SR | Olympic Games | Tokyo, Japan |
| Aug 21 – 29 | JR | FINA Junior World Championships | Quebec City, Canada |
| Aug 21 – 29 | 13-15 | FINA Youth World Championships | Quebec City, Canada |
| Aug 28 – Sep 9 (?) | SR | Games of the People’s Republic of China | Shaanxi, China |
| Nov | SR | Asian Swimming Championships | New Clark City, Philippines |
If you know of a competition happening and don’t see it listed, please contact us at insidesynchro@gmail.com.