Dennis Siver (23-11, 14) was born in Omsk, Russian SFSR, Soviet Union on January 13, 1979. At the age of 25 years on February 28, 2004, he made his professional MMA debut against Kordian Szukala, winning the fight via 1st-round submission.
On April 21, 2007, 28-year old Dennis Siver made his UFC debut on his 14th professional MMA fight at UFC 70 against a 33-year old Jess Liaudin but lost the fight via submission in the 1st round.
Siver's last fight was a 3-round majority decision win against B.J. Penn at UFC Fight Night: Chiesa vs. Lee at age 38 on June 25, 2017. He retired with a 1-fight winning streak.
He has fought 20 times in the UFC, and has a record of 11 wins, 8 losses and 1 no-contest in the promotion.
Some of Dennis Siver's best fights have been against Dale Hartt, Paul Kelly, Naoyuki Kotani, Nate Mohr, Andre Winner, Charles Rosa and George Sotiropoulos.
Siver has 11 losses on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
35  | Jun 25, 2017 38 years, 5 months 23-11 (14) | 38 years, 6 months 16-11-2 (13) | UFC | FT | 3 | MD | WIN |
34  | Jun 20, 2015 36 years, 5 months 22-11 (14) | 37 years, 1 months 33-8-2 (20) | UFC | FT | 3 | UD | LOSS |
33  | Jan 18, 2015 36 years 22-10 (14) | 26 years, 6 months 16-2 (15) | UFC | FT | 2 | TKO | LOSS Punches |
32  | Oct 4, 2014 35 years, 8 months 22-9 (14) | 28 years, 1 months 9-0 (9) | UFC | FT | 3 | UD | WIN |
31  | Dec 28, 2013 34 years, 11 months 21-9 (14) | 32 years, 7 months 13-7 (7) | UFC | FT | 3 | NC | NC Overturned |
30  | Jul 6, 2013 34 years, 5 months 21-9 (14) | 29 years, 8 months 19-5 (14) | UFC | FT | 3 | TKO | LOSS Punches |
29  | Dec 8, 2012 33 years, 10 months 21-8 (14) | 29 years, 8 months 18-10 (12) | UFC | FT | 3 | UD | WIN |
28  | Apr 14, 2012 33 years, 3 months 20-8 (14) | 29 years, 4 months 17-2 (11) | UFC | FT | 3 | UD | WIN |
27  | Oct 29, 2011 32 years, 9 months 19-8 (14) | 28 years, 7 months 16-3 (13) | UFC | WL | 1 | SUB | LOSS Rear-naked choke |
26  | Jul 2, 2011 32 years, 5 months 19-7 (14) | 27 years, 9 months 13-5 (7) | UFC | WL | 3 | UD | WIN |
25  | Feb 27, 2011 32 years, 1 months 18-7 (14) | 33 years, 7 months 14-2 (9) | UFC | WL | 3 | UD | WIN |
24 | Nov 13, 2010 31 years, 10 months 17-7 (14) | Andre Winner | UFC | WL | 1 | SUB | WIN Rear-naked choke |
23  | Jun 19, 2010 31 years, 5 months 16-7 (13) | 34 years, 1 months 23-5 (19) | TUF | WL | 3 | UD | WIN |
22  | Mar 31, 2010 31 years, 2 months 15-7 (13) | 25 years, 6 months 10-3 (8) | UFC | WL | 3 | UD | LOSS |
21  | Nov 14, 2009 30 years, 10 months 15-6 (13) | 25 years, 2 months 10-1 (7) | UFC | WL | 2 | TKO | WIN Spinning back kick and punches |
20  | Jun 13, 2009 30 years, 5 months 14-6 (12) | 30 years, 2 months 6-1 (6) | UFC | WL | 1 | SUB | WIN Rear-naked choke |
19  | Jan 17, 2009 30 years 13-6 (11) | 25 years, 10 months 8-5 (7) | UFC | WL | 3 | TKO | WIN Spinning back kick and punches |
18 | Oct 25, 2008 29 years, 9 months 12-6 (10) | Chas Jacquier | WL | 1 | SUB | WIN Guillotine choke | |
17  | Jul 5, 2008 29 years, 5 months 11-6 (9) | 25 years, 3 months 22-7-2 (17) | UFC | WL | 1 | KO | LOSS Punches |
16  | Jan 23, 2008 29 years 11-5 (9) | 28 years, 8 months 3-0 (2) | UFC | WL | 3 | UD | LOSS |
15  | Sep 8, 2007 28 years, 7 months 11-4 (9) | 25 years, 9 months 17-6-5 (13) | UFC | WL | 2 | KO | WIN Punch |
14  | Apr 21, 2007 28 years, 3 months 10-4 (8) | 33 years, 4 months 12-8 (11) | UFC | WL | 1 | SUB | LOSS Armbar |
13 | Dec 9, 2006 27 years, 10 months 10-3 (8) | Jim Wallhead | 2 | SUB | WIN Armbar | ||
12 | Sep 30, 2006 27 years, 8 months 9-3 (7) | Said Khalilov | 3 | SD | WIN | ||
11 | May 20, 2006 27 years, 4 months 8-3 (7) | Paul Jenkins | 2 | SUB | WIN Heel hook | ||
10  | May 6, 2006 27 years, 3 months 7-3 (6) | 21 years, 5 months 10-2 (7) | 1 | SUB | LOSS Rear-naked choke | ||
9 | Mar 5, 2006 27 years, 1 months 7-2 (6) | Arni Isaksson | 2 | SUB | LOSS Armbar | ||
8 | Mar 5, 2006 27 years, 1 months 7-1 (6) | Adrian Degorski | 2 | SUB | WIN Armbar | ||
7 | Mar 5, 2006 27 years, 1 months 6-1 (5) | Jonas Eriksson | 1 | TKO | WIN Punches | ||
6 | Oct 8, 2005 26 years, 8 months 5-1 (4) | Fabricio Nascimento | 1 | SUB | LOSS Kimura | ||
5 | Mar 26, 2005 26 years, 2 months 5-0 (4) | Maciej Łuczak | 2 | SUB | WIN Punches | ||
4 | Mar 6, 2005 26 years, 1 months 4-0 (3) | Dylan van Kooten | 1 | SUB | WIN Choke | ||
3 | Sep 26, 2004 25 years, 8 months 3-0 (2) | Kenneth Rosfort-Nees | 1 | TKO | WIN Doctor stoppage | ||
2 | Aug 7, 2004 25 years, 6 months 2-0 (1) | Mohamed Omar | 3 | UD | WIN | ||
1 | Feb 28, 2004 25 years, 1 months 1-0 (1) | Kordian Szukala | 1 | SUB | WIN Strikes |
