| 2024-07-20 | UFC on ESPN: Lemos vs. Jandiroba | Featherweight | Choi Doo-ho def. Bill Algeo | TKO (submission to punch) | 2 | 3:38 |
| 2024-03-30 | UFC on ESPN: Blanchfield vs. Fiorot | Featherweight | Kyle Nelson def. Bill Algeo | TKO (punches) | 1 | 4:00 |
| 2023-10-07 | UFC Fight Night: Dawson vs. Green | Featherweight | Bill Algeo def. Alexander Hernandez | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2023-04-15 | UFC on ESPN: Holloway vs. Allen | Featherweight | Bill Algeo def. T.J. Brown | Submission (rear-naked choke) | 2 | 1:40 |
| 2022-09-17 | UFC Fight Night: Sandhagen vs. Song | Featherweight | Andre Fili def. Bill Algeo | Decision (split) (28–29, 29–28, 29–28) | 3 | 5:00 |
| 2022-07-16 | UFC on ABC: Ortega vs. Rodríguez | Featherweight | Bill Algeo def. Herbert Burns | TKO (retirement) | 2 | 1:50 |
| 2022-01-15 | UFC on ESPN: Kattar vs. Chikadze | Featherweight | Bill Algeo def. Joanderson Brito | Decision (unanimous) (30–27, 29–28, 29–28) | 3 | 5:00 |
| 2021-05-22 | UFC Fight Night: Font vs. Garbrandt | Featherweight | Ricardo Ramos def. Bill Algeo | Decision (unanimous) (30–27, 30–27, 29–28) | 3 | 5:00 |
| 2020-11-28 | UFC on ESPN: Smith vs. Clark | Featherweight | Bill Algeo def. Spike Carlyle | Decision (unanimous) (30–27, 30–27, 30–27) | 3 | 5:00 |
| 2020-08-29 | UFC Fight Night: Smith vs. Rakić | Featherweight | Ricardo Lamas def. Bill Algeo | Decision (unanimous) (29–27, 29–27, 29–27) | 3 | 5:00 |