Last night at about 7:30 Eastern time, I attempted to replace DeMarcus Cousins in my lineup after reading that he would not play. His game did not begin until 8:30 pm Eastern. When I hit the "Swap" button, I was told that it was past the deadline to make such a change. This was not an issue on a competitor site, fwiw.

I went to the FAQ and read that "Lineups remain open for editing until the game commences at the start of the first relevant real-life sporting event."

That big, fat zero in my lineup (of course) drastically affected my results. I played 3 small 50/50 beginner games and still managed to cash in one of them, despite the 0 from Cousins.

I emailed them through the HELP page immediately, but have not yet heard back.

Can anyone here offer me some insight?

Got my answer via email. As soon as the first game of the day started, that's when rosters lock. Bulls-Celtics started at 1PM, therefore that's when rosters were locked.

I'm out on DraftDay and transferring money to DraftKings. Was fun while it lasted.