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Using a combined measurement of media and fan scoring percentages, MMAdecisions.com has compiled a list of 2023's most disputed decisions:
| 2023's Most Disputed Decisions |
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Agreement with Winner |
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| # |
Fight |
Media |
Fans |
Avg. |
Winner's Judges |
Other Judge |
Notes |
| 1 | Edwards def. Pudilova | 0% | 11% | 6% | Huyette, Swanberg | Gueary | - |
| 2 | Marcos def. Grant | 14% | 2% | 8% | Werner, Wojciechowski | Ohlsson | - |
| 3 | Jenkins def. Emmers | 0% | 16% | 8% | D'Amato, Lee | Wincapaw | Wincapaw 27-30 |
| 4 | Brener def. Tukhugov | 0% | 17% | 9% | Field, Cleary | Foley | Field 30-27 |
| 5 | Albazi def. Kara-France | 10% | 10% | 10% | D'Amato, Lee | Bell | 5 rounds |
| 6 | Alencar def. Amanda | 10% | 11% | 10% | Byrd, McCarthy | D'Amato | - |
| 7 | Mullarkey def. Makdessi | 14% | 10% | 12% | Christie, Colon, Lethaby | - | Unanimous |
| 8 | Bohm def. Kim | 9% | 16% | 13% | Bell, Kamijo | Harris | - |
| 9 | Demopoulos def. Murata | 7% | 18% | 13% | Colon, D'Amato, Lee | - | Unanimous |
| 10 | Murphy def. Santos | 11% | 17% | 14% | Paolillo, Werner | Collett | - |
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Honourable Mentions:
Of note:
- Ji Yeon Kim was involved in the 5th most disputed decision in 2022 and now the 8th most disputed decision in 2023. Each time she was on the losing side of the result. Kim was also on the winning side of the 10th most disputed decision in 2018.
- Jamie Mullarkey was involved in the 12th most disputed decision in 2022 and now the 7th most disputed decision in 2023. Each time he was on the winning side of the result. Mullarkey was also on the losing side of the 7th most disputed decision in 2020.
- Vanessa Demopoulos was involved in the 11th most disputed decision in 2022 and now the 9th most disputed decision in 2023. Each time she was on the winning side of the result.
- John Makdessi was involved in the 12th most disputed decision in 2015 and now the 7th most disputed decision in 2023. Each time he was on the losing side of the result.
- All judges involved in the most disputed decision only worked in that one UFC event during the year.
Selection Criteria
- Only decisions in which at least two-thirds of the tracked media scores disagreed with the actual winner AND decisions in which at least two-thirds of the submitted fan scorecards disagreed with the actual winner were included.
- A fight must have a minimum of 6 media scores.
- A fight must have a minimum of 15 fan scorecards.
- Only fights from Bellator, Cage Warriors, KSW, PFL and the UFC were considered. Though typically, only UFC fights have enough media and fan scorecards to meet the minimum requirements to qualify for the list.
Sources of Bias
There are several possible sources of bias that could have affected the members and order of this list. Those sources include:
- Loser Bias: Fans who disagree with the outcome are more likely to submit a scorecard than those who are content with the decision.
- Geographical Bias (Fans): Sometimes certain countries generate more traffic than others, which could lead to a bias in fan voting.
- Geographical Bias (Media): The media scorecards tracked on this site are predominantly submitted by US-based media members.
- Small Sample Size: with thresholds set at 6 media members and 15 fan scorecards, it is quite possible that those small thresholds could yield results that vary significantly from the general MMA populace.
- UFC Bias: Because of the dearth of media and fan scores in other organizations, very few non-UFC decisions meet the thresholds for consideration.
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Using a combined measurement of media and fan scoring percentages, MMAdecisions.com has compiled a list of 2022's most disputed decisions:
| 2022's Most Disputed Decisions |
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Agreement with Winner |
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| # |
Fight |
Media |
Fans |
Avg. |
Winner's Judges |
Other Judge |
Notes |
| 1 | Pimblett def. Gordon | 4% | 8% | 6% | Crosby, Lee, McCarthy | - | Unanimous |
| 2 | Johnson def. Zhumagulov | 8% | 6% | 7% | Cleary, D'Amato | Crosby | - |
| 3 | Arlovski def. Collier | 0% | 16% | 8% | Crosby, D'Amato | Bell | 27-30 Bell |
| 4 | Rodriguez def. Li | 9% | 8% | 8% | Bell, Crosby | McCarthy | - |
| 5 | Cachoeira def. Kim | 7% | 11% | 9% | Bell, Byrd, D'Amato | - | Unanimous |
| 6 | Buday def. Brzeski | 8% | 11% | 9% | D'Amato, Kelly | Bell | - |
| 7 | Vergara def. Rodrigues | 8% | 14% | 11% | Colon, Curcio | Kamijo | - |
| 8 | Rountree Jr. def. Jacoby | 13% | 11% | 12% | Cartlidge, Flores | McCarthy | - |
| 9 | O'Malley def. Yan | 4% | 24% | 14% | Cartlidge, Lethaby | Paolillo | - |
| 10 | Vieira def. Holm | 10% | 22% | 16% | Bell, Cleary | D'Amato | - |
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Honourable Mentions:
Of note:
- For the first time since this was created in 2013, the most disputed decision of the year (Pimblett/Gordon) was a unanimous decision.
- Zhalgas Zhumagulov was on the losing end of the 2nd and 13th most disputed decisions of the year. In 2020, Zhumagulov again found himself on the wrong side of a decision in this list, losing in the 6th most disputed decision of that year.
- Douglas Crosby was a judge in the top four most disputed decisions of the year, siding with the winner in three of those fights.
- The judge with the most completed UFC decisions in 2022 without an appearance on this year's list was Junichiro Kamijo. Kamijo submitted scorecards in 67 UFC decisions in 2022, making him the 3rd most active UFC judge in 2022.
Selection Criteria
- Only decisions in which at least two-thirds of the tracked media scores disagreed with the actual winner AND decisions in which at least two-thirds of the submitted fan scorecards disagreed with the actual winner were included.
- A fight must have a minimum of 6 media scores.
- A fight must have a minimum of 15 fan scorecards.
- Only fights from Bellator, Cage Warriors, Invicta, KSW, PFL and the UFC were considered. Though typically, only UFC fights have enough media and fan scorecards to meet the minimum requirements to qualify for the list.
Sources of Bias
There are several possible sources of bias that could have affected the members and order of this list. Those sources include:
- Loser Bias: Fans who disagree with the outcome are more likely to submit a scorecard than those who are content with the decision.
- Geographical Bias (Fans): Sometimes certain countries generate more traffic than others, which could lead to a bias in fan voting.
- Geographical Bias (Media): The media scorecards tracked on this site are predominantly submitted by US-based media members.
- Small Sample Size: with thresholds set at 6 media members and 15 fan scorecards, it is quite possible that those small thresholds could yield results that vary significantly from the general MMA populace.
- UFC Bias: Because of the dearth of media and fan scores in other organizations, very few non-UFC decisions meet the thresholds for consideration.
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