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Using a combined measurement of media and fan scoring percentages, MMAdecisions.com has compiled a list of 2025's most disputed decisions:
| 2025'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 | Santos def. Marshall | 0% | 12% | 6% | Lee, Lethaby | Cleary | Cleary 27-30 |
| 2 | Bonfim def. Thompson | 14% | 9% | 12% | Bell, Tirelli | Winter | - |
| 3 | Zahabi def. Aldo | 11% | 18% | 15% | Bell, Procopio, Therien | - | Unanimous |
| 4 | Loughran def. Fletcher | 10% | 22% | 16% | Cartlidge, Paolillo | Ohlsson | - |
| 5 | Diaz def. Santos | 14% | 20% | 17% | Colon, Lee, Weeks | - | Unanimous |
| 6 | Bukauskas def. Cutelaba | 18% | 16% | 17% | Procopio, D'Amato | Valel | Procopio 30-27, Valel 27-30 |
| 7 | Cortes-Acosta def. Spivac | 23% | 14% | 18% | Bilyk, Querido, Tamburrino | - | Unanimous, Tamburrino 30-27 |
| 8 | Wood def. Delgado | 11% | 28% | 20% | Cartlidge, D'Amato, Werner | - | Unanimous |
| 9 | Haqparast def. Ribovics | 18% | 24% | 21% | Bell, D'Amato | Lee | - |
| 10 | Dumont def. Vieira | 14% | 33% | 24% | Cleary, Colon | McCarthy | - |
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Honourable Mentions:
Of note:
- Stephen Thompson stakes his claim as one of the most aggrieved fighters in UFC history with his third appearance on this list, all on the losing side (2017, 2018, 2025)
- Nasrat Haqparast is on the winning side of the 9th most disputed decision for the second year in a row.
- 2025 was the first year since 2017 in which only one fight had a combined average under 10%.
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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