| WTA Tour – Grand Slam – US Open | 2021 | | 30 August–11 September |
| WTA Tour – Grand Slam – US Open (Final) | 2021 | | 11 September |
| ATP Tour – Grand Slam – US Open (Semifinal #2) | 2021 | | 10 September |
| ATP Tour – Grand Slam – US Open (Semifinal #1) | 2021 | | 10 September |
| Diamond League – Men – 200 m | 2021 | | 9 September |
| Diamond League – Men – 100 m | 2021 | | 9 September |
| Diamond League – Men – 400 m | 2021 | | 9 September |
| Diamond League – Men – 800 m | 2021 | | 9 September |
| Diamond League – Men – 1500 m | 2021 | | 9 September |
| Diamond League – Men – 110 m hurdles | 2021 | | 9 September |
| Diamond League – Men – 400 m hurdles | 2021 | | 9 September |
| Diamond League – Men – 3000 m steeple | 2021 | | 9 September |
| Diamond League – Men – High jump | 2021 | | 9 September |
| Diamond League – Men – Pole vault | 2021 | | 9 September |
| Diamond League – Men – Triple jump | 2021 | | 9 September |
| Diamond League – Men – Discus throw | 2021 | | 9 September |
| Diamond League – Men – Javelin throw | 2021 | | 9 September |
| Diamond League – Women – 100 m | 2021 | | 9 September |
| Diamond League – Women – 200 m | 2021 | | 9 September |
| Diamond League – Women – 400 m | 2021 | | 9 September |
| Diamond League – Women – 800 m | 2021 | | 9 September |
| Diamond League – Women – 1500 m | 2021 | | 9 September |
| Diamond League – Women – 100 m hurdles | 2021 | | 9 September |
| Diamond League – Women – 400 m hurdles | 2021 | | 9 September |
| Diamond League – Women – 3000 m steeple | 2021 | | 9 September |
| Diamond League – Women – Pole vault | 2021 | | 9 September |
| Diamond League – Women – Discus throw | 2021 | | 9 September |
| Diamond League – Women – Triple jump | 2021 | | 9 September |
| Diamond League – Women – Javelin throw | 2021 | | 9 September |
| WTA Tour – Grand Slam – US Open (Semifinal #2) | 2021 | | 9 September |
| WTA Tour – Grand Slam – US Open (Semifinal #1) | 2021 | | 9 September |
| Diamond League – Men – Shot put | 2021 | | 8 September |
| Diamond League – Men – 5000 m | 2021 | | 8 September |
| Diamond League – Men – Long jump | 2021 | | 8 September |
| Diamond League – Women – High jump | 2021 | | 8 September |
| Diamond League – Women – Long jump | 2021 | | 8 September |
| Diamond League – Women – Shot put | 2021 | | 8 September |
| Diamond League – Women – 5000 m | 2021 | | 8 September |
| ATP Tour – Grand Slam – US Open (Quarterfinal #1) | 2021 | | 8 September |
| ATP Tour – Grand Slam – US Open (Quarterfinal #2) | 2021 | | 8 September |
| ATP Tour – Grand Slam – US Open (Quarterfinal #3) | 2021 | | 8 September |
| ATP Tour – Grand Slam – US Open (Quarterfinal #4) | 2021 | | 8 September |
| WTA Tour – Grand Slam – US Open (Quarterfinal #3) | 2021 | | 7 September |
| WTA Tour – Grand Slam – US Open (Quarterfinal #4) | 2021 | | 7 September |
| WTA Tour – Grand Slam – US Open (Quarterfinal #2) | 2021 | | 7 September |
| WTA Tour – Grand Slam – US Open (Quarterfinal #1) | 2021 | | 7 September |
| Southern hemisphere – Bledisloe Cup | 2021 | | 7 August–5 September |
| Southern hemisphere – Rugby Championship (Match 2) | 2021 | | 5 September |
| UCI World Tour – Vuelta a España – General standings | 2021 | | 14 August–5 September |
| Formula 1 – Grand Prix – Dutch Grand Prix | 2021 | | 5 September |
| Southern hemisphere – Bledisloe Cup (Match 3) | 2021 | | 5 September |