Mackens Semerzier (8-4, 8) was born in Miami, Florida, United States on November 3, 1980. At the age of 27 years on September 27, 2008, he made his professional MMA debut against Ryan Lamareaux, winning the fight via 3rd-round submission.
On March 26, 2011, 30-year old Mackens Semerzier made his UFC debut on his 9th professional MMA fight at UFC Fight Night: Nogueira vs. Davis against a 22-year old Alex Caceres, winning the fight in the 1st round via submission.
Semerzier's last fight was a 2nd-round submission win against Gilbert Jimenez at age 32 on November 17, 2012. He retired with a 2-fight winning streak.
He has fought three times in the UFC, and has a record of 1 win, 1 loss and 1 no-contest in the promotion.
Some of Mackens Semerzier's best fights have been against Alex Caceres, Wagnney Fabiano and Kenny Foster.
Semerzier has 4 losses on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
13 | Nov 17, 2012 32 years 8-4 (8) | Gilbert Jimenez | 2 | SUB | WIN Guillotine choke | ||
12 | Aug 18, 2012 31 years, 9 months 7-4 (7) | Guillermo Serment | 1 | SUB | WIN D'arce choke | ||
11  | Mar 3, 2012 31 years, 4 months 6-4 (6) | 26 years, 6 months 16-7 (16) | UFC | 1 | SUB | LOSS Triangle armbar | |
10  | Nov 12, 2011 31 years 6-3 (6) | 25 years, 7 months 15-3 (13) | UFC | 3 | NC | NC Accidental headbutt | |
9  | Mar 26, 2011 30 years, 4 months 6-3 (6) | 22 years, 9 months 5-2 (5) | UFC | 1 | SUB | WIN Rear-naked choke | |
8  | Nov 11, 2010 30 years 5-3 (5) | 27 years 14-4 (11) | WEC | 3 | SD | LOSS | |
7  | Aug 18, 2010 29 years, 9 months 5-2 (5) | 33 years, 3 months 14-4 (10) | WEC | 2 | SUB | LOSS Rear-naked choke | |
6  | Jan 10, 2010 29 years, 2 months 5-1 (5) | 32 years, 4 months 11-3 (6) | WEC | 3 | UD | LOSS | |
5  | Oct 10, 2009 28 years, 11 months 5-0 (5) | 34 years, 2 months 12-1 (9) | WEC | 1 | SUB | WIN Triangle choke | |
4  | Jun 27, 2009 28 years, 7 months 4-0 (4) | 24 years 1-0 (0) | 1 | SUB | WIN Triangle choke | ||
3 | Apr 25, 2009 28 years, 5 months 3-0 (3) | Jason Hilliker | 1 | TKO | WIN Punches | ||
2 | Nov 15, 2008 28 years 2-0 (2) | Justin Hickey | 1 | SUB | WIN Rear-naked choke | ||
1 | Sep 27, 2008 27 years, 10 months 1-0 (1) | Ryan Lamareaux | 3 | SUB | WIN Rear-naked choke |
