2021 Xfinity Series Playoffs
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12 drivers qualify for the Xfinity Series playoffs. A win in the first 26 races qualifies a driver for the playoffs as long as they attempt all races. After the 26th race of the season (Bristol) the playoff field of 12 drivers will be set. Any remaining positions not filled with a race winner will be filled by the drivers highest in points without a win.
Round of 12: The first round (Bristol, Las Vegas, Charlotte ROVAL) is the Round of 12. A win during one of the races advances the driver to the Round of 8. The remaining positions that are not been filled by wins are filled by points.
Round of 8: The second round (Texas, Kansas, Martinsville) is the Round of 8. If a playoff driver wins a race during the round, they qualify for the Championship race. The remaining positions that are not filled by wins are filled on points.
Championship 4: The final race of the season at Phoenix Raceway will determine the NASCAR Xfinity Series Championship. The highest finisher among the final four drivers is the Champion.
| RACE | WINNER (#wins) | |
|---|---|---|
| 1 | Daytona International Speedway | |
| 2 | Daytona International Speedway Road Course | |
| 3 | Homestead-Miami Speedway | |
| 4 | Las Vegas Motor Speedway | |
| 5 | Phoenix Raceway | |
| 6 | Atlanta Motor Speedway | |
| 7 | Martinsville Speedway | |
| 8 | Talladega Superspeedway | |
| 9 | Darlington Raceway | |
| 10 | Dover International Speedway | |
| 11 | Circuit of the Americas | |
| 12 | Charlotte Motor Speedway | |
| 13 | Mid-Ohio Sports Car Course | |
| 14 | Texas Motor Speedway | |
| 15 | Nashville Superspeedway | |
| 16 | Pocono Raceway | |
| 17 | Road America | |
| 18 | Atlanta Motor Speedway | |
| 19 | New Hampshire Motor Speedway | |
| 20 | Watkins Glen International | |
| 21 | Indianapolis Motor Speedway Road Course | |
| 22 | Michigan International Speedway | |
| 23 | Daytona International Speedway | |
| 24 | Darlington Raceway | |
| 25 | Richmond Raceway | |
| 26 | Bristol Motor Speedway | |
| Playoff Drivers Advancing: | ||
| PLAYOFFS BEGIN – Round of 12 | ||
| 27 | Las Vegas Motor Speedway | |
| 28 | Talladega Superspeedway | |
| 29 | Charlotte Motor Speedway ROVAL | |
| Playoff Drivers Advancing: | ||
| PLAYOFFS Round of 8 | ||
| 30 | Texas Motor Speedway | |
| 31 | Kansas Speedway | |
| 32 | Martinsville Speedway | |
| Playoff Drivers Advancing: | ||
| Championship Race |
||
| 33 | Phoenix Raceway | |