Most fantasy football leagues start the playoffs in NFL Week 15, Sleeper says, and Week 15 of the 2026 season runs from Thursday, December 17, to Monday, December 21, 2026. There is no single date for every league, because each platform sets its own schedule for public leagues and a commissioner can choose different weeks for a private league. Sleeper describes the standard procedure as one round a week, finishing in Week 17.
Dates of the NFL weeks involved
| NFL week | 2026 season dates | Status |
|---|---|---|
| Week 15 | December 17 to 21, 2026 | All games dated |
| Week 16 | December 24 to 28, 2026 | Four games not yet dated |
| Week 17 | December 31, 2026 to January 4, 2027 | Four games not yet dated |
| Week 18 | Not announced | Set after Week 17 |
The Week 16 schedule opens on Thursday, December 24, includes three games on Friday, December 25, and ends on Monday, December 28, with four games still listed without a date. The Week 17 schedule opens on Thursday, December 31, and its last scheduled game is on Monday, January 4, 2027, with four games still listed without a date. The NFL's Week 18 page lists no dates yet and says the dates, start times and networks will be announced after Week 17 ends.
Playoff weeks by platform
| Platform | League type | Playoff weeks |
|---|---|---|
| ESPN | Public leagues | Weeks 15 to 18 |
| Yahoo | Public and public prize leagues | Weeks 16 and 17 |
| Sleeper | Typical league, set by the commissioner | Weeks 15 to 17 |
ESPN says its public leagues have a fixed regular season of 14 weeks and hold their playoffs from Week 15 through Week 18. In those leagues the top four teams qualify and each playoff round lasts two weeks, which is why the bracket takes four weeks to finish. A different schedule on ESPN requires a League Manager league, where the league manager sets the length of the regular season.
Yahoo lists the playoff options a commissioner can pick. A playoff with six, seven or eight teams lasts three weeks and can run in Weeks 14 to 16, Weeks 15 to 17 or Weeks 16 to 18. A playoff with four teams lasts two weeks and can run in Weeks 15 and 16, Weeks 16 and 17 or Weeks 17 and 18. Yahoo says all of its public leagues and public prize leagues use the four-team playoff in Weeks 16 and 17.
Sleeper describes a standard 12-team league in which six teams qualify, the top two seeds have a bye in Week 15, and the semifinals and the championship are played in Weeks 16 and 17. It says a playoff with only four teams is likely to start in Week 16, and that most leagues avoid playing in Week 18.
Private leagues
The platform rules above cover public leagues and common setups. In a private league the commissioner chooses the number of playoff teams and the weeks, and the NFL has not yet set the dates of the Week 18 games.
This page will be updated at this address when the NFL dates the remaining games in Weeks 16, 17 and 18.