GameSim Scores Big with NFL Upsets: Chargers, Saints, and Broncos Win

For Week 15 of the 2025 NFL season, GameSim’s simulations delivered some bold upset forecasts, shaking up expectations for Sunday’s slate of games.

While favorites dominated many of the projected outcomes, GameSim identified three standout underdog picks that could pay off big for savvy followers: the Los Angeles Chargers edging the Kansas City Chiefs in a tight divisional battle, the Denver Broncos pulling off a road win against the favored Green Bay Packers, and the New Orleans Saints sneaking past the Carolina Panthers despite the odds each pick highlighting the power of GameSim’s simulation-based analytics and offering a fresh lens on what promises to be a thrilling Week 15.

Top Predictions

• Miami Heat vs. Toronto Raptors: GameSim had the heat winning 124.9–109.4; actual result was a win at 116-110, covering the spread of -5.5.
• Dallas Mavericks vs. Utah Jazz: Predicted score was Jazz 114.3–110.9; actual score was Jazz 110-105, covering the spread of 1.5.

Today’s Upset Alerts

• Incarnate Word vs. TCU: GameSim predicts Incarnate Word winning 72.3–71.1, with an ATS edge of 19.2.
• East Texas A&M vs. Southeastern Louisiana: Predicts East Texas A&M winning 70.8–61.3, with an ATS edge of 14.
• Utah Jazz vs. Dallas Mavericks: Predicted win 114.3–110.9 with an ATS edge of -4.8.

Games to Watch Against the Spread

• Incarnate Word vs. TCU: Predicted score 72.3–71.1, line -18.
• East Texas A&M vs. Southeastern Louisiana: Predicted score 70.8–61.3, line -4.5.
• Dallas Mavericks vs. Utah Jazz: Predicted score 114.3–110.9, line 1.5.

Over/Under Watchlist

• South Dakota State vs. Wyoming: Predicted total 134.5, line 150.5.
• North Alabama vs. Alabama A&M: Predicted total 121.5, line 136.5.
• Utah Jazz vs. Dallas Mavericks: Predicted total 225.2, line 238.5.

Get in the action and simulate matchups today on GameSim, like the exciting Miami Heat vs. Toronto Raptors showdown!