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

15 fighters · / 100

1
Rose Namajunas
5-1 as underdog · 83%
63.1
2
Amanda Lemos
4-4 as underdog · 50%
44.3
3
Yan Xiaonan
3-3 as underdog · 50%
43.1
4
Vanessa Demopoulos
3-3 as underdog · 50%
43.1
5
Marina Rodriguez
3-3 as underdog · 50%
43.1
6
Sam Hughes
5-6 as underdog · 45%
42.1
7
Elise Reed
2-3 as underdog · 40%
36.8
8
Jessica Andrade
2-5 as underdog · 29%
30.1
9
Montserrat Conejo Ruiz
1-4 as underdog · 20%
25.7
10
Virna Jandiroba
1-4 as underdog · 20%
25.7
11
Tabatha Ricci
1-4 as underdog · 20%
25.7
12
Karolina Kowalkiewicz
2-8 as underdog · 20%
23.7
13
Polyana Viana
1-5 as underdog · 17%
23.1
14
Angela Hill
3-12 as underdog · 20%
22.7
15
Tecia Pennington
1-7 as underdog · 13%
19.3