How does the NFL Game Simulator work?

The NFL Game Simulator uses play-by-play models and statistical projections to predict outcomes, scores, and player stats for each matchup.

Are NFL predictions updated daily?

Yes. Predictions and player projections update daily with the latest stats, depth charts, and matchup data.

How accurate are the NFL predictions?

Accuracy varies by week and matchup. We publish performance summaries so you can track results over time.

How often are predictions refreshed?

Predictions refresh daily and may update during the day when key injuries or depth chart changes occur.

NFL Predictions for Week 4

Look for Geno Smith (Raiders) to have a big day. In this week's simulations he averaged 316.4 passing yards per game.
To view all of this week's player projections, you'll need a GameSim+ account.

Odds: Line | O/U

Week 4 NFL Games
Date/Time	Matchup	Prediction	Actual	Result
9/8/2025 8:15 PM	Minnesota Vikings @ Chicago Bears by 1.5	Minnesota Vikings WIN 21.8-21.4 won 50.60% of sims, average margin of 0.4 Prediction Projected Stats	Minnesota Vikings wins 27-24
9/14/2025 1 PM	Chicago Bears @ Detroit Lions by 6.5	Detroit Lions WIN 26.4-21.4 won 61.78% of sims, average margin of 4.9 Prediction Projected Stats	Detroit Lions wins 52-21
9/21/2025 4:25 PM	Dallas Cowboys @ Chicago Bears by 1.5	Dallas Cowboys WIN 26.6-21.2 won 63.53% of sims, average margin of 5.4 Prediction Projected Stats	Chicago Bears wins 31-14
9/28/2025 4:25 PM	Chicago Bears @ Las Vegas Raiders by 0.5	Las Vegas Raiders WIN 27.8-19.4 won 76.43% of sims, average margin of 8.4 Prediction \| Simulate Projected Stats

Legend/Totals

Correct Picks	2 (66.7%)
Incorrect Picks	1 (33.3%)
Final Margin within 7 Pts	1 (33.3%)
Beat the Spread	1 (33.3%)

NFL Predictions for Week 4

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