Dennis Siver, a retired mixed martial artist, made a significant impact in the Ultimate Fighting Championship (UFC) during his career.
This article will teach you about Dennis Siver’s net worth, salary, career earnings, contract, stats, wife, career overview, and more.
Dennis Siver’s Biography
| Detail | Information |
|---|---|
| Name | Dennis D. Siver |
| Nickname | “The Menace” |
| Born | January 13, 1979 |
| Age | 45 |
| Height | 5’7″ (170 cm) |
| College | – |
| Religion | – |
| Nationality | German (born in Russia) |
| Net Worth | Estimated $1-5 million |
| Salary | Varied per fight |
| Relationship Status | Single |
| Instagram Profile | – |
Early Career
Dennis Siver was born in Omsk, Soviet Union, to a family of Soviet citizens with German heritage. At 15, he began training in Sambo and Judo.
Two years later, he moved to Germany, where he expanded his martial arts repertoire to include Taekwondo and Kickboxing.
In the same year, he moved to Germany, Siver became the W.A.K.O Amateur Kickboxing Champion of Germany, showcasing his striking prowess early on.
Professional Career
Siver’s professional MMA career began in 2004, fighting primarily in German promotions.
His skills caught the attention of the UFC, leading to his debut in 2007. Despite initial setbacks, Siver’s perseverance paid off as he returned to the UFC in 2009.
He quickly made a name for himself with impressive performances, earning multiple “Knockout of the Night” and “Fight of the Night” bonuses.
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Throughout his UFC career, Siver competed in the welterweight, lightweight, and featherweight divisions, demonstrating his versatility.
Dennis Siver’s Net Worth Details
Dennis Siver’s net worth is estimated to be between $1-5 million as of 2025.
Fight Purses
| Event | Opponent | Purse |
|---|---|---|
| UFC 168 | Manvel Gamburyan | $66,000 ($33,000 to show, $33,000 to win) |
| UFC Fight Night: McGregor vs. Siver | Conor McGregor | $39,000 |
Endorsements
- MMA equipment brands
- Nutrition and supplement companies
- Local businesses in Germany
Fight Records
| Opponent | Result | Event | Date |
|---|---|---|---|
| B.J. Penn | Win | UFC Fight Night 112 | June 25, 2017 |
| Conor McGregor | Loss | UFC Fight Night 59 | January 18, 2015 |
| Cub Swanson | Loss | UFC 162 | July 6, 2013 |
| Donald Cerrone | Loss | UFC 137 | October 29, 2011 |
| George Sotiropoulos | Win | UFC 127 | February 27, 2011 |
| Matt Wiman | Win | UFC 132 | July 2, 2011 |
| Ross Pearson | Loss | UFC Fight Night 21 | March 31, 2010 |
| Gray Maynard | Loss | UFC Fight Night 12 | January 23, 2008 |
| Melvin Guillard | Loss | UFC 86 | July 5, 2008 |
FAQs
1. Who is Dennis Siver?
Dennis Siver is a retired Russian-born German mixed martial artist who competed in the UFC’s welterweight, lightweight, and featherweight divisions. Known for his explosive striking, particularly his spinning back kicks, he earned multiple UFC fight-night bonuses during his career.
2. What is Dennis Siver’s fighting background?
Siver began training in judo and sambo at age 15 in Russia. After moving to Germany at 17, he added taekwondo and kickboxing to his skill set, eventually becoming the W.A.K.O Amateur Kickboxing Champion of Germany. He holds a black belt in taekwondo and a purple belt in Brazilian jiu-jitsu.
3. What are Dennis Siver’s most notable UFC victories?
Key wins include a spinning back kick TKO against Paul Kelly at UFC 105 (2009), a submission victory over Dale Hartt at UFC 99 (2009), and a unanimous decision against George Sotiropoulos at UFC 127 (2011). He also defeated B.J. Penn in his final UFC bout in 2017.
4. Why is Dennis Siver famous for spinning back kicks?
Siver popularized the spinning back kick in MMA, using it to secure two “Knockout of the Night” bonuses against Nate Mohr (2009) and Paul Kelly (2009). He attributed its success to opponents’ lack of familiarity with the technique early in his career.
5. How did Dennis Siver perform against Conor McGregor?
Siver lost to Conor McGregor via second-round TKO at UFC Fight Night 59 (2015). The fight was a pivotal moment in McGregor’s rise, as it set up his first UFC featherweight title shot.
6. What is Dennis Siver’s professional MMA record?
He retired with a record of 23 wins, 11 losses, and 1 no-contest. His wins include 5 knockouts, 9 submissions, and 9 decisions. Losses came via 3 knockouts, 5 submissions, and 3 decisions.
7. Where was Dennis Siver born, and where does he live now?
Born in Omsk, Russia, on January 13, 1979, Siver moved to Germany at 17. Post-retirement, he teaches martial arts in Mannheim, Germany.
8. Did Dennis Siver face any controversies during his career?
In 2013, a win against Manvel Gamburyan was overturned to a no-contest after Siver tested positive for human chorionic gonadotropin (hCG), a banned substance. He received a nine-month suspension.
9. When did Dennis Siver retire from MMA?
His final fight was a majority decision win over B.J. Penn in June 2017. He later signed with Russian promotion ACB but did not compete again, effectively retiring from active competition.
10. What is Dennis Siver’s legacy in MMA?
Siver is remembered for his dynamic striking, particularly his spinning techniques, and his resilience across three UFC weight classes. Despite never challenging for a title, he remains a respected figure for his technical skill and contributions to evolving striking tactics in MMA.
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