Daily fantasy sports operators finished out the National Football League regular season on a down note as activity fell in Week 17.

According to figures released by DFS data analysts SuperLobby.com, DFS operator DraftKings narrowly eclipsed rival FanDuel in Week 17 entry fees, although FanDuel’s effective margin slightly outdid DraftKings.

FanDuel’s combined guaranteed prize pools (GPP) and cash game entry fees came to just under $17.3m, down about $100k from the previous week. SuperLobby doesn’t track cash games at DraftKings, but the site’s GPP fees came to just under $17.5m, down 3% from the previous week.

However, FanDuel boasted an effective margin of 10.8% while DraftKings’ margin came in at 10.6%. FanDuel’s revenue for the week came in at $1.87m, slightly more than DraftKings’ $1.85m. For the NFL season as a whole, FanDuel posted a margin of 9.2% while DraftKings managed a 9% rake.