Dennis Siver
8–5–0 · Featherweight · Age 47 · 13 UFC fights
Skill (today)
+1.39
Uncertainty (σ)
1.61
As of
2026-09-13
Skill trajectory
Line: estimated skill after each fight. Band: ±1σ uncertainty.
Fight ledger
| Date | Opponent | Result | Method | Event | Model P(win), pre-fight |
|---|---|---|---|---|---|
| 2017-06-25 | BJ Penn | Win | M-DEC | UFC Fight Night 112 | 89% |
| 2015-06-20 | Tatsuya Kawajiri | Loss | U-DEC | UFC Fight Night 69 | 61% |
| 2015-01-18 | Conor McGregor | Loss | KO/TKO | UFC Fight Night 59 | 23% |
| 2014-10-04 | Charles Rosa | Win | U-DEC | UFC Fight Night 53 | |
| 2013-07-06 | Cub Swanson | Loss | KO/TKO | UFC 162: Silva vs. Weidman | 48% |
| 2012-12-08 | Nam Phan | Win | U-DEC | UFC on FOX 5 | 72% |
| 2012-04-14 | Diego Nunes | Win | U-DEC | UFC on FUEL TV 2 | 61% |
| 2011-10-29 | Donald Cerrone | Loss | SUB | UFC 137: Penn vs. Diaz | 38% |
| 2011-07-02 | Matt Wiman | Win | U-DEC | UFC 132: Cruz vs Faber II | 36% |
| 2011-02-26 | George Sotiropoulos | Win | U-DEC | UFC 127: Penn vs Fitch | 41% |
| 2010-11-13 | Andre Winner | Win | SUB | UFC 122: Marquardt vs. Okami | 38% |
| 2010-06-19 | Spencer Fisher | Win | U-DEC | The Ultimate Fighter 11 Finale | |
| 2010-03-31 | Ross Pearson | Loss | U-DEC | UFC Fight Night 21 |