UFC Vegas 31: Makhachev vs. Moises is a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 17, 2021 at the UFC Apex Facility in Nevada, Las Vegas Metropolitan Area, United States.
Main Card
| Weight Class | Fight Card | Method | Round | Results |
| Lightweight | Islam Makhachev vs. Thiago Moisés | Submission | R4 (02:38) | Islam Makhachev def. Thiago Moisés |
| Women Bantamweight | Marion Reneau vs. Miesha Tate | KO/TKO | R3 (01:53) | Miesha Tate def. Marion Reneau |
| Lightweight | Jeremy Stephens vs. Mateusz Gamrot | Submission | R1 (01:05) | Mateusz Gamrot def. Jeremy Stephens |
| Middleweight | Rodolfo Vieira vs. Dustin Stoltzfus | Submission | R3 (01:54) | Rodolfo Vieira def. Dustin Stoltzfus |
| Featherweight | Gabriel Benítez vs. Billy Quarantillo | KO/TKO | R3 (03:40) | Billy Quarantillo def. Gabriel Benítez |
Preliminary Card
| Weight Class | Fight Card | Method | Round | Results |
| Welterweight | Daniel Rodriguez vs. Preston Parsons | KO/TKO | R1 (03:47) | Daniel Rodriguez def. Preston Parsons |
| Women Strawweight | Amanda Lemos vs. Montserrat Ruiz | KO/TKO | R1 (00:35) | Amanda Lemos def. Montserrat Ruiz |
| Bantamweight | Khalid Taha vs. Sergey Morozov | Decision | R3 (05:00) | Sergey Morozov def. Khalid Taha |
| Flyweight | Francisco Figueiredo vs. Malcolm Gordon | Decision | R3 (05:00) | Malcolm Gordon def. Francisco Figueiredo |
| Heavyweight | Alan Baudot vs. Rodrigo Nascimento Ferreira | KO/TKO | R2 (01:29) | Rodrigo Nascimento Ferreira def. Alan Baudot |
Feedback
