| Fighter | Record | Last Bout |
|---|---|---|
| Edson Barboza | 24-15-0 | 2026-08-15 |
| Elves Brener | 16-6-0 | 2026-09-26 |
| Erin Blanchfield | 14-2-0 | 2026-10-17 |
| Farid Basharat | 16-0-0 | 2026-07-11 |
| Felipe Bunes | 14-9-0 | 2026-02-28 |
| Gabriel Bonfim | 20-1-0 | 2026-11-07 |
| Gaston Bolanos | 9-5-0 | 2026-06-20 |
| Gilbert Burns | 22-10-0 | 2026-04-18 |
| Ignacio Bahamondes | 17-7-0 | 2026-09-12 |
| Ismael Bonfim | 20-7-0 | 2026-07-25 |
| Iwo Baraniewski | 9-0-0 | 2026-09-19 |
| Jan Blachowicz | 29-12-2 | 2026-08-01 |
| Javid Basharat | 15-2-0 (1 NC) | 2026-02-07 |
| Joanderson Brito | 19-5-1 | 2026-09-19 |
| Joaquin Buckley | 21-8-0 | 2026-10-17 |
| Kevin Borjas | 11-6-0 | 2026-08-29 |
| Lucas Brennan | 11-3-0 | 2026-04-25 |
| Lukasz Brzeski | 9-7-1 (1 NC) | 2025-07-19 |
| Marc-Andre Barriault | 17-11-0 (1 NC) | 2026-10-17 |
| Marcio Barbosa | 19-2-0 | 2026-08-22 |
| Marcus Buchecha | 5-3-1 | 2026-04-25 |
| Marek Bujlo | 6-1-0 | 2025-11-22 |
| Mario Bautista | 18-3-0 | 2026-07-11 |
| Martin Buday | 16-2-0 | 2025-07-26 |
| Maycee Barber | 15-3-0 | 2026-03-28 |
| Mayra Bueno Silva | 10-7-1 (1 NC) | 2026-04-25 |
| Melsik Baghdasaryan | 8-4-0 | 2026-06-20 |
| Modestas Bukauskas | 21-7-0 | 2026-09-05 |
| Namsrai Batbayar | 10-2-0 | 2026-08-29 |
| Ramiz Brahimaj | 13-7-0 | 2026-08-15 |
| Randy Brown | 20-8-0 | 2026-04-11 |
| Raoni Barcelos | 22-5-0 | 2026-09-26 |
| Robert Bryczek | 18-7-0 | 2026-09-26 |
| Rodolfo Bellato | 13-3-1 (1 NC) | 2026-09-26 |
| Rolando Bedoya | 14-5-0 | 2025-09-27 |
| Sean Brady | 19-2-0 | 2026-11-07 |
| Shauna Bannon | 7-3-0 | 2026-05-16 |
| Tanner Boser | 22-11-1 | 2026-10-17 |
| Tereza Bleda | 7-2-0 | 2025-12-13 |
| Theodor Berggren | 8-4-0 | 2026-06-27 |
| Viacheslav Borshchev | 8-7-1 | 2025-11-15 |
| Yousri Belgaroui | 10-3-0 | 2026-09-12 |