BOXINGAPI

Biggest boxing upsets

When the price was wrong.

Every priced bout carries its opening and closing line, so every underdog win can be ranked by how unlikely the market said it was. Built from our results and our odds since 2016, refreshed every hour.

619underdog wins
1 in 8priced bouts
+2750the longest
Closing price4 Aug 2018
Underdog won

Viviane Obenauf beat Natasha Jonas

TKO 4 · Lost WBA International female super-featherweight title
Closing price+2750
Chance it implied3.4%

The list

The upsets of 2022

Each view has its own address: a year, title fights or women's bouts.

#BoutMethodTitleChanceOpeningClosing price
1
Jurmain McDonald beat Evan Holyfield14 May 2022
KO 2· 5.9% chance +1000+1500
2
Paul Valenzuela Cuesta beat Patrick Teixeira9 Apr 2022
DQ 2· 7.1% chance +1250+1270
3
Femke Hermans beat Mary Spencer16 Dec 2022
UD 10For vacant IBO light-middleweight title 8.4% chance +750+1000
4
Paul Butler beat Jonas Sultan22 Apr 2022
UD 12For vacant WBO interim bantamweight title 10.6% chance +900+900
5
Lucas Browne beat Junior Fa5 Jun 2022
KO 1Retained WBA Oceania heavyweight title;Won vacant IBF Australasian heavyweight title 11.3% chance +650+700
6
Alejandro Meneses beat Sam Maxwell22 Apr 2022
TKO 9For vacant IBO super-lightweight title 11.5% chance +1020+700
7
Indeya Smith beat Sulem Urbina21 Dec 2022
UD 8· 13.2% chance +650+600
8
Khoren Gevor beat Lukasz Stanioch30 Sep 2022
TD 5· 13.0% chance +700+600
9
Giovanni De Carolis beat Daniele Scardina13 May 2022
KO 5Lost WBO Inter-Continental super-middleweight title 13.3% chance +600+600
10
Michael McKinson beat Alex Martin19 Mar 2022
UD 10· 32.7% chance +600+600
11
Luis Enrique Romero beat Maxim Prodan13 May 2022
TKO 7· 14.2% chance +600+550
12
Faiga Opelu beat Hemi Ahio16 Oct 2022
TKO 4· 15.0% chance +800+500
13
David Jiménez beat Ricardo Sandoval16 Jul 2022
MD 12· 14.9% chance +450+500
14
Edwin De Los Santos beat José Valenzuela4 Sep 2022
KO 3Lost WBC Continental Americas lightweight title 16.8% chance +450+450
15
Loic Tajan beat Elie Konki4 Jun 2022
KO 2For vacant IBA Inter-continental bantamweight title 16.4% chance +650+450
16
Vincent Astrolabio beat Guillermo Rigondeaux26 Feb 2022
UD 10For vacant WBC International bantamweight title 16.6% chance +550+450
17
Hekkie Budler beat Elwin Soto25 Jun 2022
UD 12· 18.3% chance +350+400
18
Ángel Rodríguez beat Mark Urvanov19 Feb 2022
SD 12· 18.0% chance +500+400
19
Fernando Martínez beat Jerwin Ancajas26 Feb 2022
UD 12Martinez wins IBF World Jr Bantamweight Title 18.9% chance +450+380
20
Misael Lopez beat Orlando Gonzalez23 Sep 2022
UD 8· 20.0% chance +160+350
21
Istvan Szili beat Felix Sturm26 Mar 2022
MD 12For IBO Inter-Continental super middleweight title 20.4% chance +350+350
22
Mark Hunt beat Sonny Bill Williams5 Nov 2022
TKO 4· 21.2% chance +340+340
23
Louis Greene beat Dean Sutherland26 Nov 2022
TKO 5Won vacant Commonwealth super-welterweight title 25.0% chance +225+275
24
Tyler Denny beat Bradley Rea12 Nov 2022
UD 10Retained English middleweight title 26.9% chance +152+240
25
Mark Heffron beat Lennox Clarke16 Jul 2022
TKO 5Lost British and Commonwealth super-middleweight titles; For IBF Inter-Continental super-middleweight title 26.9% chance +225+240
Underdog wins, 2016 to 2026

About 1 in 8

of priced professional bouts; 2024 was the wildest year at 16%
2016: 49 of 462 (10.6%) 16 11% 2017: 50 of 443 (11.3%) 17 2018: 56 of 451 (12.4%) 18 2019: 64 of 550 (11.6%) 19 2020: 38 of 316 (12.0%) 20 2021: 56 of 489 (11.5%) 21 2022: 54 of 588 (9.2%) 22 2023: 71 of 605 (11.7%) 23 2024: 97 of 592 (16.4%) 24 16% 2025: 53 of 461 (11.5%) 25 2026: 31 of 304 (10.2%) 26 10%

All underdog winsWon at +300 or more

The biggest upset of each year
  • 2019Mateo Damian Veron beat Lolenga Mock+1800
  • 2020Jeison Rosario beat Julian Williams+1200
  • 2021James Martin beat Vito Mielnicki Jr.+1000
  • 2022Jurmain McDonald beat Evan Holyfield+1500
  • 2023Larry Fryers beat Dimash Niyazov+900
  • 2024Travis Floyd beat Chase Martinez+900
  • 2025Armando Reséndiz beat Caleb Plant+900
  • 2026Benjamin Mendes Tani beat Daniel Lapin+1400
01

How they are ranked

By the winner's closing price: the last price before the first bell, the best across the books we read. The chance shown is that price with the bookmaker's margin taken out.

02

What counts

Professional bouts with a price on both sides and a decided winner. Draws and no contests are left out; a disqualification counts as the result it was.

Every upset in one call: GET /v1/upsets?min_odds=300

Read the odds and upsets guide