Games started, news broke — your entered lineups don't have to die with them. Upload your live entries file — DraftKings DKEntries.csv or FanDuel's CSV Edit template — and every entry is checked against live lineups and odds: started players lock in place, the solver rebuilds the rest. Export puts the same file back with only the open slots changed — re-upload it on the site.
1 · Upload your live entries
DraftKings: contest → Edit Entries → Export to CSV. FanDuel: Live page → CSV Edit → download the template. Upload the file untouched (Excel mangles the ids). The slate is detected automatically. FanDuel slates need a recent run of the FanDuel Sync extension.