Lineup Lock
What Is Lineup Lock in DFS?
Last updated October 4, 2026 by Ship It Nation
Lineup lock is the deadline after which you cannot change your selected players. Without late swap, your entire lineup locks together; with late swap, which allows edits after the contest begins, players lock at their games' listed deadlines.
Why It Matters
Lock determines which injury updates, starting lineups and weather reports you can still act on. Submit a valid lineup early, then update it as news arrives rather than risking an empty entry at the deadline. Even with late swap, your replacement must be unlocked and fit the remaining salary and roster requirements.
Example
Say your NBA contest allows late swap and begins at 7 p.m. ET, but your questionable forward's game locks at 10 p.m. At 9:30, he is ruled out. You can replace him with an unlocked player from the same contest who fits his roster slot and your remaining salary, but you cannot remove an early-game player to free up money.
After saving an edit, reopen your entered lineups and confirm the change reached every intended entry. Check the site's displayed lock times and time zone instead of relying on the television schedule.
Hear Us Break It Down
Hand-picked moments from our free live streams where our hosts break down this term.
More mentions 10
Common Questions
Does my whole DFS lineup lock when the first game starts?
Only if the contest does not offer late swap. In a late-swap contest, each game's listed deadline locks its players while later-game players remain editable. Check the specific contest rules because availability depends on the sport and format, not simply whether you use DraftKings or FanDuel.
What happens if my player is ruled out after lineup lock?
An inactive player who never participates generally scores zero, and you cannot manually replace him once his roster spot is locked. A later-game player may still be editable in a late-swap contest. Canceled or postponed events can have separate scoring, swap or refund rules.
Does a delayed game give me more time to edit my lineup?
Not automatically. A delayed start does not guarantee that the site's listed lock time changes. Check the contest's displayed status and applicable rules before waiting for news. Some postponement rules permit additional swaps, but those exceptions differ by site and contest.