Not listed on the current UFC roster

John Kolosci

Full professional career23 verified opponent profilesRecursive links active
JK
15–9–0PROFESSIONAL RECORD · W–L–D
CAREER SNAPSHOT

THE COMPLETE RECORD

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15Professional wins
9Professional losses
0Draws
0No contests
FULL PROFESSIONAL CAREER

EVERY RECORDED BOUT

Complete professional fight history, including competition before and outside UFC. Use the controls to isolate an opponent, promotion, method or result.

15–9–024 professional boutsNo no-contest results
24 of 24 bouts shown
ResultDate / recordOpponentEventFinish details
L15–9–0 after boutRyan ThomasView status and profile →XFC 15 - TributeSubmission (Reverse Triangle Choke)Round 1 Time 4:46 Referee Chris Adams
W15–8–0 after boutDan BoldenView status and profile →Hoosier FC 9 - Fall BrawlDecision (Split)Round 3 Time 5:00 Referee Dave Stone
L14–8–0 after boutForrest PetzView status and profile →Hoosier FC 7 - ValidationTKO (Punches)Round 2 Time 0:57 Referee Rob Hinds
L14–7–0 after boutKenny RobertsonView status and profile →BFC - Bellator Fighting Championships 25Submission (Keylock)Round 2 Time 2:41 Referee Don Clift
W14–6–0 after boutLuigi FioravantiView status and profile →Hoosier FC 4 - Showdown at the Steel YardSubmission (Rear-Naked Choke)Round 1 Time 0:42 Referee Rob Hinds
W13–6–0 after boutWilliam HillView status and profile →Hoosier FC 2 - It's OnDecision (Split)Round 3 Time 5:00 Referee Jeff Malott
L12–6–0 after boutShamar BaileyView status and profile →Strikeforce / M-1 Global - Fedor vs. RogersDecision (Unanimous)Round 3 Time 5:00 Referee David Smith
W12–5–0 after boutScott SandsView status and profile →DC 6 - Duneland Classic 6Decision (Unanimous)Round 3 Time 5:00 Referee Not listed
W11–5–0 after boutJeff HanksView status and profile →LDIL - Lockdown in LowellSubmission (Anaconda Choke)Round 1 Time N/A Referee Not listed
W10–5–0 after boutRocky FranceView status and profile →GECF - Gladiator Elite Cage Fighting 13Decision (Majority)Round 3 Time 5:00 Referee Not listed
W9–5–0 after boutJay FinneganView status and profile →Cage Rage - KokomoSubmission (Anaconda Choke)Round 1 Time 2:01 Referee Not listed
L8–5–0 after boutMatt ArroyoView status and profile →UFC - The Ultimate Fighter 6 FinaleSubmission (Armbar)Round 1 Time 4:42 Referee John McCarthy
L8–4–0 after boutWilliam HillView status and profile →IFC - Road to Global DominationTKO (Punches)Round 1 Time 1:11 Referee Not listed
W8–3–0 after boutAndre Luis Novoes PimentaView status and profile →IMMAC 1 - AttackDecision (Split)Round 3 Time 0:00 Referee Not listed
L7–3–0 after boutBrayan RafiqView status and profile →MARS 4 - New DealSubmission (Front Choke)Round 1 Time 2:46 Referee Minoru Toyonaga
W7–2–0 after boutSeth KleinbeckView status and profile →DC 4 - Duneland Classic 4Decision (Unanimous)Round 3 Time 5:00 Referee Not listed
W6–2–0 after boutEric TavaresView status and profile →MFC - Boardwalk BlitzTKO (Punches)Round 3 Time 3:17 Referee Not listed
W5–2–0 after boutMike TodorovicView status and profile →SB 40 - SuperBrawl 40TKO (Punches)Round 2 Time 2:10 Referee Not listed
W4–2–0 after boutJohn SivoriView status and profile →Euphoria - USA vs. WorldDecision (Majority)Round 3 Time 5:00 Referee Not listed
W3–2–0 after boutAdam VerkilenView status and profile →XKK - Xtreme Kage KombatTKORound Time 0:00 Referee Not listed
L2–2–0 after boutPat O'MalleyView status and profile →FCC 15 - Freestyle Combat Challenge 15Decision (Unanimous)Round 2 Time 5:00 Referee Not listed
L2–1–0 after boutJason RigsbyView status and profile →SC 18 - Silverback Classic 18Submission (Rear Naked Choke)Round 2 Time 0:00 Referee Not listed
W2–0–0 after boutBrent CallowayView status and profile →AFC 6 - Absolute Fighting Championships 6TKO (Submission to Punches)Round 1 Time 3:58 Referee Not listed
W1–0–0 after boutRoy NerzigView status and profile →MC 6 - Maximum Combat 6Submission (Strikes)Round 1 Time 0:00 Referee Not listed
DATA CHECKEDAug 21, 2026
PRIMARY RECORD SOURCESherdog Fight Finder

Fight Atlas republishes factual bout results, not source articles or photography. Belt markers appear only when championship status is confirmed by an official promotion source; unverified bouts are never inferred. The matched source name for this profile is John Kolosci.

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RECURSIVE COVERAGE

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24 professional bout rows are displayed from the source record. 23 unique opponent identities have a stable source ID and an internal Fight Atlas route. Every opponent row has a verified identity link.

Source and correction standard

The complete professional history is retrieved from the established public fight-record source and cached for up to 24 hours. Current-roster status remains separate from historical career data and does not imply retirement.

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