UFC 264: Poirier vs. McGregor 3 is a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 10, 2021 at the T-Mobile Arena in Paradise, Nevada, United States.
UFC 264 Fight Card
Main Card
| Weight Class | Fight Card | Method | Round | Results |
| Lightweight | Dustin Poirier vs. Conor McGregor | KO/TKO | R1 (05:00) | Dustin Poirier def. Conor McGregor |
| Welterweight | Gilbert Burns vs. Stephen Thompson | Decision | R3 (05:00) | Gilbert Burns def. Stephen Thompson |
| Heavyweight | Tai Tuivasa vs. Greg Hardy | KO/TKO | R1 (01:07) | Tai Tuivasa def. Greg Hardy |
| Women Bantamweight | Irene Aldana vs. Yana Kunitskaya | KO/TKO | R1 (04:35) | Irene Aldana def. Yana Kunitskaya |
| Bantamweight | Sean O'Malley vs. Kris Moutinho | KO/TKO | R3 (04:33) | Sean O'Malley def. Kris Moutinho |
Preliminary Card
| Weight Class | Fight Card | Method | Round | Results |
| Welterweight | Carlos Condit vs. Max Griffin | Decision | R3 (05:00) | Max Griffin def. Carlos Condit |
| Welterweight | Niko Price vs. Michel Pereira | Decision | R3 (05:00) | Michel Pereira def. Niko Price |
| Featherweight | Ryan Hall vs. Ilia Topuria | KO/TKO | R1 (04:47) | Ilia Topuria def. Ryan Hall |
| Middleweight | Trevin Giles vs. Dricus Du Plessis | KO/TKO | R2 (01:41) | Dricus Du Plessis def. Trevin Giles |
Early Prelims
| Weight Class | Fight Card | Method | Round | Results |
| Women Flyweight | Jennifer Maia vs. Jessica Eye | Decision | R3 (05:00) | Jennifer Maia def. Jessica Eye |
| Middleweight | Omari Akhmedov vs. Brad Tavares | Decision | R3 (05:00) | Brad Tavares def. Omari Akhmedov |
| Flyweight | Zhalgas Zhumagulov vs. Jerome Rivera | Submission | R1 (02:02) | Zhalgas Zhumagulov def. Jerome Rivera |
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