What is late swap in DFS?

Late swap lets you change the players in your entries after a slate locks, if their games have not started. A player whose game started stays in his slot. DraftKings has late swap on NFL, NBA, MLB, NHL, and college basketball Classic contests, and FanDuel on NFL, NBA, NHL, and college basketball Full Roster contests and NFL SuperFlex contests. Single game contests have none.

Why use late swap?

News comes in after lock. A player is ruled OUT, or a team names a new starter. With late swap, you replace an OUT player before his game starts, and you can move to players with better projections.

How do I late swap many entries?

Each site lets you download the file of your entries after lock, edit it, and upload it: Edit Entries on DraftKings, and CSV Edit on FanDuel's website. DFS Studio does the edit. It keeps the players whose games started, rebuilds the rest of each entry, and makes the file to upload. Late swap has the steps.

Does DFS Studio warn me?

Yes. After lock, DFS Studio sends a push when an entry holds an OUT player whose game has not started, or when a late swap gains your entries 1.5 points or more.

Updated November 5, 2026.