Proprietary metrics · Upset Index
Upset Index
The giant-killers board — how often a fighter WINS as the betting underdog (positive pre-fight moneyline), across their UFC career. Underdog win rate shrunk toward the corpus mean (~33%) so small samples stay honest, scaled 0–100. Min 5 underdog bouts.
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9 fighters · / 100- 1
Amanda Nunes5-1 as underdog · 83%63.1 - 2
Raquel Pennington6-5 as underdog · 55%48.7 - 3
Ketlen Vieira3-2 as underdog · 60%47.9 - 4
Julianna Pena4-4 as underdog · 50%44.3 - 5
Alexis Davis3-3 as underdog · 50%43.1 - 6
Marion Reneau3-4 as underdog · 43%39.2 - 7
Bethe Correia4-6 as underdog · 40%37.9 - 8
Lina Lansberg3-5 as underdog · 38%35.9 - 9
Sarah Moras2-4 as underdog · 33%33.1