Dennis Siver
21 UFC Fights | 57% Win Rate | 5 Finishes (42%)
Dennis Siver UFC Record & Pro MMA Record
Dennis Siver is 12-8 in the UFC across 21 fights (1 no contest), with 3 wins by knockout, 2 by submission and 7 by decision. The full pro MMA record is 23-11 (1 NC), 11-3 of it outside the UFC. Siver competes at lightweight as an orthodox outfighter, standing 5'6" with a 70" reach at 47 years old. The last bout was a win over BJ Penn by decision in Jun 2017.
Best attribute: knockdown power (knockdowns scored per fight) — 84th percentile among 300 lightweight fighters (0.35/fight).
Dennis Siver's UFC win rate is 57% (12 of 21 fights), and 42% of those wins came by finish. Siver averages 0.6 takedowns per fight at 29% accuracy and stops 68% of opponents' takedown attempts.
- Pro MMA Record
- 23-11 (1 NC)
- UFC Record
- 12-8 (1 NC)
- Height
- 5'6"
- Reach
- 70"
- Age
- 47
- Stance
- Orthodox
- Last Fight
- W vs BJ Penn · Decision · Jun 2017
Pro record from Sherdog (snapshot 2026-07-03) plus every UFC bout since; UFC record from UFCStats.
Dennis Siver's Last 5 Fights
Siver is 2-2, with one no contest, in the last five UFC fights.
- Win vs BJ Penn · Decision · R3 5:00 · UFC Fight Night: Chiesa vs. Lee · Jun 2017
- Loss vs Tatsuya Kawajiri · Decision · R3 5:00 · UFC Fight Night: Jedrzejczyk vs Penne · Jun 2015
- Loss vs Conor McGregor · KO/TKO · R2 1:54 · UFC Fight Night: McGregor vs Siver · Jan 2015
- Win vs Charles Rosa · Decision · R3 5:00 · UFC Fight Night: Nelson vs Story · Oct 2014
- No contest vs Manvel Gamburyan · Other · R3 5:00 · UFC 168: Weidman vs Silva 2 · Dec 2013
Striking
Fighter Profile
Offensive Output
Defensive
Strike Targets
Position Breakdown
Grappling
Takedowns & Control
Win Methods
Finish Probability by Round
Round-by-Round Output
Sig. Strikes Landed per Round — Dennis Siver vs Average
Dennis Siver lands 17.8 strikes in R1 but 19.4 in R3+ — output increases in later rounds.
Dennis Siver's UFC Fight History
21 UFC fights on record (12-8 (1 NC)), most recent first.
| Result | Opponent | Method | Rd · Time | Event | Date |
|---|---|---|---|---|---|
| W | BJ Penn | Decision | R3 · 5:00 | UFC Fight Night: Chiesa vs. Lee | 2017-06-25 |
| L | Tatsuya Kawajiri | Decision | R3 · 5:00 | UFC Fight Night: Jedrzejczyk vs Penne | 2015-06-20 |
| L | Conor McGregor | KO/TKO | R2 · 1:54 | UFC Fight Night: McGregor vs Siver | 2015-01-18 |
| W | Charles Rosa | Decision | R3 · 5:00 | UFC Fight Night: Nelson vs Story | 2014-10-04 |
| D/NC | Manvel Gamburyan | Other | R3 · 5:00 | UFC 168: Weidman vs Silva 2 | 2013-12-28 |
| L | Cub Swanson | KO/TKO | R3 · 2:24 | UFC 162: Silva vs Weidman | 2013-07-06 |
| W | Nam Phan | Decision | R3 · 5:00 | UFC on FOX: Henderson vs Diaz | 2012-12-08 |
| W | Diego Nunes | Decision | R3 · 5:00 | UFC on FUEL TV: Gustafsson vs Silva | 2012-04-14 |
| L | Donald Cerrone | Submission | R1 · 2:22 | UFC 137: Penn vs Diaz | 2011-10-29 |
| W | Matt Wiman | Decision | R3 · 5:00 | UFC 132: Cruz vs Faber | 2011-07-02 |
| W | George Sotiropoulos | Decision | R3 · 5:00 | UFC 127: Penn vs Fitch | 2011-02-26 |
| W | Andre Winner | Submission | R1 · 3:37 | UFC 122: Marquardt vs Okami | 2010-11-13 |
| W | Spencer Fisher | Decision | R3 · 5:00 | The Ultimate Fighter: Team Liddell vs Team Ortiz Finale | 2010-06-19 |
| L | Ross Pearson | Decision | R3 · 5:00 | UFC Fight Night: Florian vs Gomi | 2010-03-31 |
| W | Paul Kelly | KO/TKO | R2 · 2:53 | UFC 105: Couture vs Vera | 2009-11-14 |
| W | Dale Hartt | Submission | R1 · 3:23 | UFC 99: The Comeback | 2009-06-13 |
| W | Nate Mohr | KO/TKO | R3 · 3:45 | UFC 93: Franklin vs Henderson | 2009-01-17 |
| L | Melvin Guillard | KO/TKO | R1 · 0:36 | UFC 86: Jackson vs Griffin | 2008-07-05 |
| L | Gray Maynard | Decision | R3 · 5:00 | UFC Fight Night: Swick vs Burkman | 2008-01-23 |
| W | Naoyuki Kotani | KO/TKO | R2 · 2:04 | UFC 75: Champion vs Champion | 2007-09-08 |
| L | Jess Liaudin | Submission | R1 · 1:21 | UFC 70: Nations Collide | 2007-04-21 |
How Siver Ranks at Lightweight
Percentile among the 300 lightweight fighters in our database (higher is better; absorbed strikes are inverted).
Recent Opponents
More Lightweight Fighters
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