
March Madness 2025: Top Bracket-Busting Upsets & Best Underdog Betting Picks

Two basketball players face off court
The 2025 NCAA Tournament is here, bringing prime opportunities for bracket-busting upsets. Here are the most promising underdogs and likely upsets for March Madness first-round games.
Most Likely Bracket Upsets:
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#12 Colorado State over #5 Memphis
- Rams are betting favorites
- Top-3 in Mountain West scoring offense and defense
-
#10 Arkansas over #7 Kansas
- Strong SEC defensive ranking
- Well-equipped to challenge Jayhawks
-
#12 UC San Diego over #5 Michigan
- Impressive 30-4 record
- #1 in Big West scoring defense
High-Seed Upset Potential:
-
#13 Akron (+750) over Arizona
- MAC's top scoring offense (84.6 PPG)
- Can match Arizona's offensive output
- 11.6% implied win probability
-
#14 Troy (+500) over Kentucky
- Top-3 Sun Belt defensive team
- Kentucky struggles defensively
- 16.67% implied win probability
-
#15 Bryant (+1250) over MSU
- American East scoring leaders (86.4 PPG)
- 7.41% implied win probability
Best First-Round Betting Values:
New Mexico (+150)
- Mountain West's top scoring team
- 34.7% from three-point range
- Fast-paced style (4th in KenPom tempo)
- Facing slumping Marquette
Grand Canyon (+450)
- WAC scoring leaders (79.9 PPG)
- 18.18% implied win probability
- High-scoring matchup vs Maryland
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