John Kolosci
UFC Debut
Record
Streak
L1
Age
Date of birth
- Fighting out of
- Portage, Indiana
- Born
- United States
- Weight class
- Lightweight
- Height
- 5'11" · 180 cm
Before the UFC
John Kolosci makes their UFC debut
Our striking, grappling, and schedule metrics are measured from UFC fights, so they come online after this bout. Here is the career they bring in — and how live the opposition has been.
Pre-UFC opposition
ModerateOpponents' combined record
214-189
.531 win rate
Winning-record opponents
10 of 19
carried winning pro records
Pro bouts faced
23
19 opponents with records on file
A descriptive read of the non-UFC slate from opponents’ full career pro records — not a UFC-grade Schedule Score.
UFC fight history
No UFC bouts on record yet.
Outside the UFC
across 23 bouts · 23 promotions · wins by 4 KO · 4 sub · 7 decXFC 15 · Hoosier FC 9 · Hoosier FC 7 · BFC · Hoosier FC 4 +18
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| L | Ryan Thomas20-8 | Submission | Reverse Triangle Choke | R1 | 4:46 | XFC 15 | Dec 2, 2011 |
| W | Dan Bolden8-16 | Decision | Split | R3 | 5:00 | Hoosier FC 9 | Nov 5, 2011 |
| L | Forrest Petz26-10 | KO/TKO | Punches | R2 | 0:57 | Hoosier FC 7 | Apr 9, 2011 |
| L | Kenny Robertson15-7 | Submission | Keylock | R2 | 2:41 | BFC | Aug 19, 2010 |
| W | Luigi Fioravanti26-15 | Submission | Rear-Naked Choke | R1 | 0:42 | Hoosier FC 4 | Jun 11, 2010 |
| W | William Hill23-34 | Decision | Split | R3 | 5:00 | Hoosier FC 2 | Jan 2, 2010 |
| L | Shamar Bailey16-11 | Decision | Unanimous | R3 | 5:00 | Strikeforce | Nov 7, 2009 |
| W | Scott Sands | Decision | Unanimous | R3 | 5:00 | DC 6 | Sep 12, 2009 |
| W | Jeff Hanks | Submission | Anaconda Choke | R1 | — | LDIL | Jun 26, 2009 |
| W | Rocky France4-7 | Decision | Majority | R3 | 5:00 | GECF | May 2, 2009 |
| W | Jay Finnegan4-2 | Submission | Anaconda Choke | R1 | 2:01 | Cage Rage | Apr 10, 2009 |
| L | William Hill23-34 | KO/TKO | Punches | R1 | 1:11 | IFC | Mar 4, 2007 |
| W | Decision | Split | R3 | 0:00 | IMMAC 1 | Nov 4, 2006 | |
| L | Brayan Rafiq8-4 | Submission | Front Choke | R1 | 2:46 | MARS 4 | Aug 26, 2006 |
| W | Decision | Unanimous | R3 | 5:00 | DC 4 | Jun 17, 2006 | |
| W | Eric Tavares5-10 | KO/TKO | Punches | R3 | 3:17 | MFC | Mar 4, 2006 |
| W | Mike Todorovic0-2 | KO/TKO | Punches | R2 | 2:10 | SB 40 | Apr 30, 2005 |
| W | John Sivori1-1 | Decision | Majority | R3 | 5:00 | Euphoria | Feb 26, 2005 |
| W | Adam Verkilen3-2 | KO/TKO | — | R0 | 0:00 | XKK | Oct 23, 2004 |
| L | Pat O'Malley17-9 | Decision | Unanimous | R2 | 5:00 | FCC 15 | Jun 12, 2004 |
| L | Jason Rigsby7-11 | Submission | Rear Naked Choke | R2 | 0:00 | SC 18 | Dec 13, 2003 |
| W | Brent Calloway | KO/TKO | Submission to Punches | R1 | 3:58 | AFC 6 | Dec 6, 2003 |
| W | Roy Nerzig | Submission | Strikes | R1 | 0:00 | MC 6 | Apr 12, 2003 |
Non-UFC bouts (regional/other promotions) and Dana White’s Contender Series — shown for context only, excluded from Schedule Score, striking/grappling rates, and every UFC-scoped metric.