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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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Leaderboard

10 fighters · / 100
  1. 1
    Alexander Volkov
    Alexander Volkov
    5-4 as underdog · 56%
    48.6
  2. 2
    Derrick Lewis
    Derrick Lewis
    8-8 as underdog · 50%
    46.6
  3. 3
    Waldo Cortes Acosta
    Waldo Cortes Acosta
    3-3 as underdog · 50%
    43.1
  4. 4
    Marcin Tybura
    Marcin Tybura
    4-7 as underdog · 36%
    35.4
  5. 5
    Chris Barnett
    Chris Barnett
    2-4 as underdog · 33%
    33.1
  6. 6
    Serghei Spivac
    Serghei Spivac
    2-5 as underdog · 29%
    30.1
  7. 7
    Don'Tale Mayes
    Don'Tale Mayes
    2-5 as underdog · 29%
    30.1
  8. 8
    Austen Lane
    Austen Lane
    1-4 as underdog · 20%
    25.7
  9. 9
    Tai Tuivasa
    Tai Tuivasa
    1-6 as underdog · 14%
    21.0
  10. 10
    Lukasz Brzeski
    Lukasz Brzeski
    1-6 as underdog · 14%
    21.0