Beat the models, one Sunday at a time.
Delta Sunday is a free NFL forecasting game. Every week you set how sure you are about each game with a slider. Right and confident earns up to 25 points; wrong and confident costs up to 75. You play against everyone else and against three forecasters: Elo, a rating system built from results alone; the market, what the sportsbooks and prediction markets say; and the blend, our own, backtested on 24 seasons.
- Sign in. Email and password, or a link we send you. Free.
- Set a number for every game. The System will suggest one; adjust only where you know something the models don't.
- Watch the board. Picks lock at kickoff, points land as games end, and the leaderboard shows whether you beat the market this week.
Divisional
Set how sure you are for every game. Right at 100% earns 25 points, wrong at 100% costs 75, 50% scores nothing. Picks save as you go and lock at kickoff. Elo is the model you're trying to beat. The spread, sportsbooks, Kalshi and Polymarket are shown for reference, and they compete on the leaderboard too. Our lock and bold call of the week are on the Predictions page. Sign in to play.