Cooper Flagg - NBA
Cooper Flagg - NBA

Cooper Flagg Assists Prediction: Under 4.5 vs Mavericks Tonight (March 15)

Cooper Flagg Assists Prediction: Under 4.5 vs Mavericks Tonight (March 15)

Cooper Flagg - NBA

Cooper Flagg's assists prop is a sharp Under play on tonight's NBA slate. The Cleveland Cavaliers take on the Dallas Mavericks on March 15, and our model projects Flagg to fall short of his 4.5-assist line. Here's why we're backing the Under.

Cooper Flagg Stats & Recent Form

Flagg has averaged 3.8 assists over his last five games, falling below the 4.5 mark in three of those contests. The rookie's playmaking has been inconsistent, with a high of 6 assists against Detroit but a low of 2 assists in two separate matchups. His assist rate sits at just 18% of his touches—below league average for guards—and he's been more focused on scoring (18.2 PPG over the last five) than facilitating. Tonight's matchup against Dallas could further suppress those numbers.

Matchup Analysis: Cavaliers vs Mavericks

The Mavericks rank 8th in defensive efficiency and allow just 3.9 assists per game to opposing point guards. Dallas's perimeter defense forces turnovers and limits spacing, making it harder for Flagg to find open cutters and shooters. The Cavaliers' supporting cast isn't generating consistent movement either, which limits secondary playmaking opportunities. With Luka Doncic dominating ball control on the other end, this game should see lower-than-normal assist totals across the board.

Our Flagg Assists Prop Pick for March 15

UNDER 4.5 Assists (-114). Flagg's recent assist average of 3.8 and inconsistent playmaking make this a solid bet. Against Dallas's stingy perimeter D and a Mavericks team built to control pace, we expect him to stay under 4.5 assists. Lock in the Under.

PROP ODDS NBA • March 15, 2026
Play on Chalkboard →
Cooper Flagg — Assists 4.5
Over 4.5 -114   50%
Under 4.5 -114   50%
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