The Upcoming Events page (also reached as "What's on Tap") shows every game scheduled for today, and each event stays visible right up until its official start time. The page is a plain listing — it doesn't apply any league's rules, cutoffs, or eligibility filters. It simply shows what games exist.
Real Odds Parlay uses a default fifteen-minute cutoff for creating new plays: a game has to be more than fifteen minutes from its scheduled start to be eligible. Because the Events page doesn't apply that cutoff, you may see games listed that are no longer available to include in a play. That's expected — visibility and eligibility are separate things.
Each league can set its own cutoff time (owners configure this as the cutoff buffer in Advanced League Settings). If you're unsure why a game is visible but not available for your play, check the league's details page — it shows the exact cutoff that league uses. And if a league requires several games to build a play but not enough eligible games remain outside the cutoff window, the system will hold off new plays until more games become available.
Events stay visible until they begin; whether you can actually pick one is decided by your league's cutoff. If a game hasn't started but you can't add it to a play, the cutoff is why — and your league's details page will always show the cutoff in force.