{"title":"Sergiusz Zając","name":"Sergiusz Zając","sport":"mma","image":null,"description":"Polish mixed martial artist (born 1998)","qid":"Q136344959","pv":268,"nickname":null,"born":"1998-10-09","died":null,"birthplace":"Żołynia, Poland","iso":"PL","country":"Polonya","height":193,"reach":189,"stance":null,"division":"Light Heavyweight","divisions":["Light Heavyweight"],"team":"Spartakus Rzeszów","org":null,"grap":null,"legend":false,"champ":false,"record":{"wins":10,"losses":2,"draws":0,"nc":0,"ko":9,"sub":0,"dec":1,"total":12,"lossesByKo":1,"lossesBySub":1,"lossesByDec":0,"streak":{"type":"W","n":1},"bestStreak":9,"firstFight":"2020-11-27","lastFight":"2026-10-10","firstLossTo":"Łukasz Olech","titleFights":0,"titlesWon":0},"otherRecord":null,"fights":[{"result":"W","record":"10–2","opponent":"Salim El Ouassaidi","method":"KO (elbows and punches)","kind":"KO","round":"1","time":"1:09","date":"2026-10-10","event":"KSW 122","location":"Rzeszów, Poland","notes":"Catchweight (215 lb) bout; Zając missed weight.","opponentSlug":null},{"result":"L","record":"9–2","opponent":"Damian Piwowarczyk","method":"TKO (punches)","kind":"KO","round":"2","time":"1:22","date":"2026-03-14","event":"KSW 116","location":"Gorzów Wielkopolski, Poland","notes":"Fight of the Night.","opponentSlug":"damian-piwowarczyk"},{"result":"W","record":"9–1","opponent":"Mariusz Książkiewicz","method":"KO (punches)","kind":"KO","round":"1","time":"1:07","date":"2025-09-20","event":"KSW 110","location":"Rzeszów, Poland","notes":"","opponentSlug":"mariusz-ksiazkiewicz"},{"result":"W","record":"8–1","opponent":"Michał Dreczkowski","method":"KO (knee)","kind":"KO","round":"1","time":"4:00","date":"2025-03-08","event":"KSW 104","location":"Gorzów Wielkopolski, Poland","notes":"Knockout of the Night.","opponentSlug":null},{"result":"W","record":"7–1","opponent":"Kleber Raimundo Silva","method":"TKO (submission to elbows)","kind":"KO","round":"1","time":"1:36","date":"2024-08-24","event":"KSW 97","location":"Tarnów, Poland","notes":"Catchweight (210.3 lb) bout; Zając missed weight.","opponentSlug":null},{"result":"W","record":"6–1","opponent":"Ramon Drum","method":"TKO (elbows)","kind":"KO","round":"1","time":"2:30","date":"2024-06-01","event":"Babilon MMA 45","location":"Nowy Targ, Poland","notes":"Catchweight (209 lb) bout.","opponentSlug":null},{"result":"W","record":"5–1","opponent":"Bartłomiej Gładkowicz","method":"Decision (unanimous)","kind":"DEC","round":"3","time":"5:00","date":"2024-01-27","event":"Babilon MMA 42","location":"Żyrardów, Poland","notes":"","opponentSlug":"bart-omiej-g-adkowicz"},{"result":"W","record":"4–1","opponent":"Dominik Owsiany","method":"TKO (elbows)","kind":"KO","round":"1","time":"4:31","date":"2023-09-22","event":"Babilon MMA 38","location":"Chełm, Poland","notes":"","opponentSlug":null},{"result":"W","record":"3–1","opponent":"Wincenty Krawczyk","method":"TKO (knees and punches)","kind":"KO","round":"1","time":"2:50","date":"2022-10-01","event":"Carpathian Warriors 10","location":"Rzeszów, Poland","notes":"","opponentSlug":null},{"result":"W","record":"2–1","opponent":"Łukasz Kulpa","method":"TKO (punches)","kind":"KO","round":"1","time":"2:45","date":"2022-07-08","event":"Babilon MMA 30","location":"Międzyzdroje, Poland","notes":"","opponentSlug":null},{"result":"W","record":"1–1","opponent":"Paweł Całkowski","method":"TKO (punches)","kind":"KO","round":"3","time":"4:37","date":"2022-02-19","event":"Prime Show MMA 1","location":"Łódź, Poland","notes":"Light heavyweight debut.","opponentSlug":null},{"result":"L","record":"0–1","opponent":"Łukasz Olech","method":"Submission (rear-naked choke)","kind":"SUB","round":"1","time":"N/A","date":"2020-11-27","event":"Opolscy Wojownicy 5","location":"Opole, Poland","notes":"Catchweight (194 lb) bout.","opponentSlug":null}],"women":false,"slug":"sergiusz-zajac","eloHist":[[2020,604],[2022,1058],[2023,1097],[2024,1152],[2025,1209],[2026,1113]],"elo":874,"eloPeak":933,"eloPeakYear":2026}