Opening sourced cards and fighter history…
The fighter trail
Source-backed identity · 1 collected promotion
Source-reported pro record
12–4–0Wins–losses–draws · Checked Oct 25, 2026
Collected professional MMA record
4–2–06 confirmed pro MMA bouts in the collected corpus
The source history reconciles to the source-reported record. Collected regional results below may cover a narrower set of bouts. 1 bouts with non-MMA, non-professional or unverified eligibility, or unverified outcomes, are excluded from professional totals.
A factual view of observed results. Missing intervening bouts can change a streak; these indicators do not predict future performance. Draws and no contests break the recorded win streak. Detail-only disputes do not erase a verified outcome. Finish percentage is unavailable when a collected win lacks a verified method category.
KSW 123 - Bartosinski vs. Lopaczyk · Nov 21, 2026
Result not recorded
Rules are unverified or disputed; excluded from professional MMA statistics.
KSW 105 - Bartosinski vs. Grzebyk 2 · Apr 26, 2025
TKO (Head Kick and Punches) · R1 · 2:40
KSW 100 - Khalidov vs. Bartosinski · Nov 16, 2024
Decision (Unanimous) · R3 · 5:00
KSW 97 - Bajor vs. Scheffel · Aug 24, 2024
Decision (Unanimous) · R3 · 5:00
KSW 94 - Bartosinski vs. Michaliszyn · May 11, 2024
Submission (Kneebar) · R3 · 4:50
KSW 81 - Bartosinski vs. Szczepaniak · Apr 22, 2023
TKO (Elbows) · R2 · 3:29
KSW 67 - De Fries vs. Stosic · Feb 26, 2022
TKO (Punches and Elbow) · R1 · 1:06
EFM Show 1 - Rozanski vs. Pasternak · Apr 9, 2021
Submission (Guillotine Choke) · R1 · 4:23
RWC 5 - Bez Przebaczenia · Jul 31, 2020
Decision (Unanimous) · R3 · 5:00
FEN 18 - Summer Edition · Aug 12, 2017
Decision (Unanimous) · R3 · 5:00
VFCL 4 - Victory Fighting Championship League 4 · Apr 28, 2017
Decision (Unanimous) · R3 · 5:00
Spartan Fight 6 - Piechota vs. Sokolis · Dec 17, 2016
Submission (Triangle Choke) · R2 · 2:36
Spartan Fight 4 - Bryczek vs. Siwy · Aug 6, 2016
Decision (Unanimous) · R3 · 5:00
Spartan Fight 2 - Browarski vs. Polejay · Mar 12, 2016
Submission (Rear-Naked Choke) · R1 · 4:32
GOTC - Gladiators of the Cage 2 · Sep 11, 2015
TKO (Punches) · R2 · 2:42
Links show the evidence collected. Metadata-only and derivative sources do not count as independent result corroboration.