John Kolosci (15-9, 8) was born in Portage, Indiana, U.S. on November 26, 1974. At the age of 28 years on April 12, 2003, he made his professional MMA debut against Roy Nerzig, winning the fight via 1st-round submission.
Kolosci's last fight was a 1st-round submission loss to Ryan Thomas at age 37 on December 2, 2011. He retired from the sport of MMA following this loss.
Some of John Kolosci's best fights have been against Luigi Fioravanti.
Kolosci has 9 losses on his MMA record.
| # | Date | Opponent | Promotion | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|---|
24  | Dec 2, 2011 37 years 15-9 (8) | 27 years 12-7 (12) | WL | 1 | SUB | LOSS Reverse triangle choke | |
23 | Nov 5, 2011 36 years, 11 months 15-8 (8) | Dan Bolden | WL | 3 | SD | WIN | |
22  | Apr 9, 2011 36 years, 4 months 14-8 (8) | 35 years, 6 months 22-9 (14) | WL | 2 | TKO | LOSS Strikes | |
21  | Aug 19, 2010 35 years, 8 months 14-7 (8) | 26 years, 6 months 9-0 (8) | Bellator | WL | 2 | SUB | LOSS Americana |
20  | Jun 11, 2010 35 years, 6 months 14-6 (8) | 29 years, 4 months 17-7 (10) | WL | 1 | SUB | WIN Rear-naked choke | |
19 | Jan 2, 2010 35 years, 1 months 13-6 (7) | William Hill | WL | 3 | SD | WIN | |
18  | Nov 7, 2009 34 years, 11 months 12-6 (7) | 27 years, 1 months 10-1 (6) | Strikeforce | WL | 3 | UD | LOSS |
17 | Sep 12, 2009 34 years, 9 months 12-5 (7) | Scott Sands | WL | 3 | UD | WIN | |
16 | Jun 26, 2009 34 years, 7 months 11-5 (7) | Jeff Hanks | WL | 1 | SUB | WIN Anaconda choke | |
15 | May 2, 2009 34 years, 5 months 10-5 (6) | Rocky France | WL | 3 | MD | WIN | |
14 | Apr 10, 2009 34 years, 4 months 9-5 (6) | Jay Finnegan | WL | 1 | SUB | WIN Anaconda choke | |
13  | Dec 8, 2007 33 years 8-5 (5) | 25 years, 3 months 2-1 (2) | TUF | WL | 1 | SUB | LOSS Armbar |
12 | Mar 4, 2007 32 years, 3 months 8-4 (5) | William Hill | LHW | 1 | TKO | LOSS Punches | |
11 | Nov 4, 2006 31 years, 11 months 8-3 (5) | Andre Luis Novoes Pimenta | MD | 3 | SD | WIN | |
10 | Aug 26, 2006 31 years, 9 months 7-3 (5) | Bryan Rafiq | MD | 1 | SUB | LOSS Guillotine choke | |
9 | Jun 17, 2006 31 years, 6 months 7-2 (5) | Seth Kleinbeck | MD | 3 | UD | WIN | |
8 | Mar 4, 2006 31 years, 3 months 6-2 (5) | Eric Tavares | MD | 3 | TKO | WIN Punches | |
7 | Apr 30, 2005 30 years, 5 months 5-2 (4) | Mike Todorovic | LT | 2 | TKO | WIN Punches | |
6 | Feb 26, 2005 30 years, 3 months 4-2 (3) | John Sivori | LT | 3 | MD | WIN | |
5 | Oct 23, 2004 29 years, 10 months 3-2 (3) | Adam Verkilen | 2 | TKO | WIN | ||
4 | Jun 12, 2004 29 years, 6 months 2-2 (2) | Pat O'Malley | 2 | UD | LOSS | ||
3 | Dec 13, 2003 29 years 2-1 (2) | Jason Rigsby | 2 | SUB | LOSS Rear-naked choke | ||
2 | Dec 6, 2003 29 years 2-0 (2) | Brent Calloway | 1 | SUB | WIN Strikes | ||
1 | Apr 12, 2003 28 years, 4 months 1-0 (1) | Roy Nerzig | 1 | SUB | WIN Strikes |
