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December 20, 2025, promises a thrilling feast for football fans with marquee matchups that are sure to keep everyone on the edge of their seats. The gridiron will sizzle with excitement as top-ranked college teams clash and a classic NFL rivalry takes center stage.

Today was a highlight reel of predictions as GameSim accurately called several matchups, especially spotlighting the impressive performance of BYU over Abilene Christian. With a projected score of 86.3–61.5, BYU went on to win 85–67—serving up an ATS success that captivated fans all around!

December 19, 2025, promises a thrilling evening as college football and the NBA deliver marquee matchups that are too close to call. Two classic rivalries will take center stage with Alabama facing Oklahoma and the Philadelphia 76ers battling the New York Knicks. Meanwhile, the Chicago Bulls will look to challenge the Cleveland Cavaliers in another nail-biting NBA encounter.

It was a day of nail-biting finishes and close calls, but GameSim had a few standout moments that truly nailed the predictions. Arkansas State squeaked by Missouri State with a final score of 34-28, just edging over the spread of -1, while Murray State took care of business against Drake, winning decisively 81-72. Both outcomes highlighted GameSim's predictive prowess, showcasing its accuracy in projecting final scores.