UFC Vegas 23: Holland vs Vettori was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on April 10, 2021 at the UFC APEX, Las Vegas United States.
UFC Vegas 23 Fight Card
Main Fight Card
| Weight Class | Fight Card | Method | Round | Results |
| Middleweight | Kevin Holland vs. Marvin Vettori | Decision | R5 (05:00) | Marvin Vettori def. Kevin Holland |
| Featherweight | Sodiq Yusuff vs. Arnold Allen | Decision | R3 (05:00) | Arnold Allen def. Sodiq Yusuff |
| Middleweight | Sam Alvey vs. Julian Marquez | Submission | R2 (02:07) | Julian Marquez def. Sam Alvey |
| Women Strawweight | Nina Ansaroff vs. Mackenzie Dern | Submission | R1 (04:48) | Mackenzie Dern def. Nina Ansaroff |
| Welterweight | Mike Perry vs. Daniel Rodriguez | Decision | R3 (05:00) | Daniel Rodriguez def. Mike Perry |
Preliminary Fight Card
| Weight Class | Fight Card | Method | Round | Results |
| Lightweight | Jim Miller vs. Joe Solecki | Decision | R3 (05:00) | Joe Solecki def. Jim Miller |
| Lightweight | Scott Holtzman vs. Mateusz Gamrot | KO | R2 (01:22) | Mateusz Gamrot def. Scott Holtzman |
| Lightweight | John Makdessi vs. Ignacio Bahamondes | Decision | R3 (05:00) | John Makdessi def. Ignacio Bahamondes |
| Heavyweight | Yorgan De Castro vs. Jarjis Danho | KO | R1 (03:02) | Jarjis Danho def. Yorgan De Castro |
| Bantamweight | Hunter Azure vs. Jack Shore | Decision | R3 (05:00) | Jack Shore def. Hunter Azure |
| Featherweight | Luis Saldana vs. Jordan Griffin | Decision | R3 (05:00) | Luis Saldana def. Jordan Griffin |
| Light Heavyweight | Jung Da Un vs. William Knight | Decision | R3 (05:00) | Jung Da Un def. William Knight |
Early Prelims Card
| Weight Class | Fight Card | Method | Round | Results |
| Welterweight | Impa Kasanganay vs. Sasha Palatnikov | Submission | R2 (00:26) | Impa Kasanganay def. Sasha Palatnikov |
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