Fight Night Combat - Jerzy Kozłowski

Jerzy Kozłowski

Full name:	Jerzy Kozłowski
Current rank:	8th	since June 16, 2025
Highest Rank:	5th	first reached February 21, 2022 (8 weeks in total)
Highest Year-End Rank:	8th	(2021)
Titles/finals:	4/8
Elo Rating:	1674

Profile Tournaments Matches Rankings Rivalries

Elo Ratings per Match since January 2013

Choose a table: Match scores, player Elo ratings, player rankings.

A player's elo rating is considered provisional (P) until they have either completed six matches or played matches at at least three different tournaments.

The probability of winning is equal to the predicted share of points scored. A player rated 200 above another corresponds to a 76% chance of winning.

The K value is a development coefficient, and it reduces large swings in the ratings of established players. The K value reduces over time, similar to 538's elo ratings for tennis players: 250/((player's match count+15)**(0.4)))-10

Click on column headers to sort the table.

Date	Tournament	Round	Opponent	Elo Rating Player	Opponent	Difference	Share of Points Predicted	Actual	Difference	Final Result Predicted	Actual	Difference	K-Factor	Next Elo	Change
2025‑01‑30	Ostroda Winter 2025	third place match	Bartek Danielkiewicz	Won	1669	1381	+288	84.0 %	100.0 %	+16.0 %	Win	Won	-	35	1674	+5
2025‑01‑30	Ostroda Winter 2025	semi-final	Sebastian Siwiec	Lost	1688	1660	+28	54.0 %	44.4 %	-9.6 %	Win	Lost	Upset Loss	35	1669	-19
2025‑01‑30	Ostroda Winter 2025	round of 8	Jan Zdunkiewicz	Won	1683	1401	+282	83.5 %	83.3 %	-0.2 %	Win	Won	-	35	1688	+5
2024‑08‑23	Ostroda 2024	final	Fabian Debowski	Won	1671	1561 P	+110	65.3 %	100.0 %	+34.7 %	Win	Won	-	35	1683	+12
2024‑08‑23	Ostroda 2024	semi-final	Sebastian Siwiec	Won	1653	1657	-4	49.4 %	55.6 %	+6.1 %	Lose	Won	Upset Win	36	1671	+18
2024‑08‑23	Ostroda 2024	round of 8	Wojciech Opara	Won	1643	1490	+153	70.7 %	62.5 %	-8.2 %	Win	Won	-	36	1653	+10
2024‑08‑17	OFCA 2024	final	Jakub Szwed	Won	1623	1680	-57	41.9 %	62.5 %	+20.6 %	Lose	Won	Upset Win	36	1643	+20
2024‑08‑17	OFCA 2024	semi-final	Marcin Borkowski	Won	1610	1514	+96	63.5 %	71.4 %	+8.0 %	Win	Won	-	37	1623	+13
2024‑08‑17	OFCA 2024	round of 8	Przemysław Marciniak	Won	1597	1498 P	+99	63.9 %	100.0 %	+36.1 %	Win	Won	-	37	1610	+13
2024‑08‑10	Rabka 2024	final	Sebastian Siwiec	Lost	1616	1615	+1	50.1 %	37.5 %	-12.6 %	Win	Lost	Upset Loss	37	1597	-19
2024‑08‑10	Rabka 2024	semi-final	Wojciech Opara	Won	1606	1436	+170	72.7 %	100.0 %	+27.3 %	Win	Won	-	37	1616	+10
2024‑08‑10	Rabka 2024	round of 8	Bartek Danielkiewicz	Won	1598	1377	+221	78.1 %	83.3 %	+5.2 %	Win	Won	-	38	1606	+8
2023‑08‑12	OFCA 2023	final	Krzysztof Kostera	Lost	1606	1837	-231	20.9 %	44.4 %	+23.5 %	Lose	Lost	-	38	1598	-8
2023‑08‑12	OFCA 2023	semi-final	Sebastian Siwiec	Won	1589	1569	+20	52.9 %	83.3 %	+30.5 %	Win	Won	-	38	1606	+17
2023‑08‑12	OFCA 2023	round of 8	Bruno Ferrero	Won	1574	1500 P	+74	60.5 %	71.4 %	+10.9 %	Win	Won	-	39	1589	+15
2023‑08‑02	EJC 2023 Lublin	round of 16	Julius Preu	Lost	1578	1974	-396	9.3 %	28.6 %	+19.3 %	Lose	Lost	-	39	1574	-4
2023‑08‑02	EJC 2023 Lublin	round of 32	Fabian Fehlhaber	Won	1552	1684	-132	31.9 %	83.3 %	+51.5 %	Lose	Won	Upset Win	39	1578	+26
2023‑07‑20	Ostroda 2023	third place match	Krzysztof Czarski	Lost	1576	1519	+57	58.1 %	28.6 %	-29.6 %	Win	Lost	Upset Loss	40	1552	-24
2023‑07‑20	Ostroda 2023	semi-final	Sebastian Siwiec	Lost	1601	1528 P	+73	60.4 %	44.4 %	-15.9 %	Win	Lost	Loss	40	1576	-25
2023‑07‑20	Ostroda 2023	round of 8	Adam Opara	Won	1594	1346	+248	80.7 %	83.3 %	+2.7 %	Win	Won	-	41	1601	+7
2022‑07‑23	Ostroda 2022	final	Krzysztof Kostera	Lost	1606	1776	-170	27.3 %	16.7 %	-10.7 %	Lose	Lost	-	41	1594	-12
2022‑07‑23	Ostroda 2022	semi-final	Jan Zdunkiewicz	Won	1591	1504	+87	62.3 %	100.0 %	+37.7 %	Win	Won	-	41	1606	+15
2022‑07‑23	Ostroda 2022	round of 8	Bartek Danielkiewicz	Won	1581	1394	+187	74.6 %	83.3 %	+8.8 %	Win	Won	-	42	1591	+10
2021‑08‑20	Ostroda 2021	third place match	Jakub Długosz	Won	1565	1484 P	+81	61.5 %	62.5 %	+1.0 %	Win	Won	-	42	1581	+16
2021‑08‑20	Ostroda 2021	semi-final	Lauge Benjaminsen	Lost	1581	1678	-97	36.4 %	0.0 %	-36.4 %	Lose	Lost	-	43	1565	-16
2021‑08‑20	Ostroda 2021	round of 8	Grzegorz Jastrzębski	Won	1556	1619	-63	41.0 %	83.3 %	+42.3 %	Lose	Won	Upset Win	43	1581	+25
2021‑08‑13	OFCA 2021	third place match	Krzysztof Kostera	Lost	1572	1684	-112	34.4 %	28.6 %	-5.8 %	Lose	Lost	-	44	1556	-16
2021‑08‑13	OFCA 2021	semi-final	Amadeusz Kołak	Lost	1592	1639	-47	43.3 %	16.7 %	-26.6 %	Lose	Lost	-	44	1572	-20
2021‑08‑13	OFCA 2021	round of 8	Marcin Borkowski	Won	1577	1464	+113	65.7 %	83.3 %	+17.6 %	Win	Won	-	45	1592	+15
2021‑07‑23	Carnaval Sztukmistrzow 2021	final	Krzysztof Kostera	Won	1543	1740	-197	24.3 %	62.5 %	+38.2 %	Lose	Won	Upset Win	45	1577	+34
2021‑07‑23	Carnaval Sztukmistrzow 2021	semi-final	Krzysztof Czarski	Won	1524	1470	+54	57.7 %	83.3 %	+25.6 %	Win	Won	-	46	1543	+19
2021‑07‑23	Carnaval Sztukmistrzow 2021	round of 8	Miłosz Budka	Won	1505	1459 P	+46	56.6 %	62.5 %	+5.9 %	Win	Won	-	46	1524	+19
2020‑01‑23	Ostroda Winter 2020	third place match	Felix Suerbe	Won	1483	1468	+15	52.2 %	55.6 %	+3.4 %	Win	Won	-	47	1505	+22
2020‑01‑23	Ostroda Winter 2020	semi-final	Jakub Czekała	Lost	1498	1636	-138	31.1 %	16.7 %	-14.5 %	Lose	Lost	-	47	1483	-15
2020‑01‑23	Ostroda Winter 2020	round of 8	Grzegorz Jastrzębski	Won	1481	1385	+96	63.5 %	100.0 %	+36.5 %	Win	Won	-	48	1498	+17
2019‑08‑24	Ostroda 2019	third place match	Grzegorz Jastrzębski	Won	1461	1414	+47	56.7 %	62.5 %	+5.8 %	Win	Won	-	48	1481	+20
2019‑08‑24	Ostroda 2019	semi-final	Jakub Czekała	Lost	1476	1633	-157	28.8 %	44.4 %	+15.6 %	Lose	Lost	-	49	1461	-15
2019‑08‑24	Ostroda 2019	round of 8	Maciej Stankiewicz	Won	1452	1449 P	+3	50.4 %	100.0 %	+49.6 %	Win	Won	-	50	1476	+24
2018‑02‑10	Brno 2018	round of 8	Jakub Szwed	Lost	1466	1644	-178	26.4 %	16.7 %	-9.7 %	Lose	Lost	-	51	1452	-14
2017‑09‑16	Gdynia 2017	third place match	Amadeusz Kołak	Lost	1484	1596	-112	34.4 %	16.7 %	-17.8 %	Lose	Lost	-	51	1466	-18
2017‑09‑16	Gdynia 2017	semi-final	Michał Kozak	Lost	1497	1688	-191	25.0 %	0.0 %	-25.0 %	Lose	Lost	-	52	1484	-13
2017‑08‑17	Ostroda 2017	round of 8	Tomasz Strojek	Lost	1529	1457 P	+72	60.2 %	37.5 %	-22.7 %	Win	Lost	Loss	53	1497	-32
2017‑01‑28	Ostroda Winter 2017	third place match	Maciej Stankiewicz	Won	1504	1481 P	+23	53.3 %	71.4 %	+18.1 %	Win	Won	-	54	1529	+25
2017‑01‑28	Ostroda Winter 2017	semi-final	Amadeusz Kołak	Lost	1525	1617	-92	37.1 %	16.7 %	-20.4 %	Lose	Lost	-	55	1504	-21
2017‑01‑28	Ostroda Winter 2017	round of 8	Tomek Palka	Won	1501	1463 P	+38	55.4 %	71.4 %	+16.0 %	Win	Won	-	55	1525	+24
2016‑09‑18	Gdynia 2016	final	Michał Kozak	Lost	1523	1601	-78	39.0 %	44.4 %	+5.5 %	Lose	Lost	-	56	1501	-22
2016‑09‑18	Gdynia 2016	semi-final	Marcin Borkowski	Won	1495	1496	-1	49.9 %	83.3 %	+33.5 %	Lose	Won	Upset Win	57	1523	+28
2016‑09‑18	Gdynia 2016	round of 8	Justyna Karpińska	Won	1460	1537 P	-77	39.1 %	100.0 %	+60.9 %	Lose	Won	Win	58	1495	+35
2016‑05‑20	Lublin 2016	round of 8	Wes Peden	Lost	1486	1538	-52	42.6 %	0.0 %	-42.6 %	Lose	Lost	-	60	1460	-26
2016‑05‑20	Lublin 2016	round of 16	Tomasz Strojek	Won	1452	1500 P	-48	43.1 %	75.0 %	+31.9 %	Lose	Won	Win	61	1486	+34
2016‑02‑12	Brno 2016	round of 8	Mateusz Kownacki	Lost	1491	1409	+82	61.6 %	0.0 %	-61.6 %	Win	Lost	Upset Loss	62	1452	-39
2015‑11‑27	Carnaval Sztukmistrzow 2015	round of 8	Jay Gilligan	Lost	1525	1500 P	+25	53.6 %	25.0 %	-28.6 %	Win	Lost	Loss	63	1491	-34
2015‑09‑26	Gdynia 2015	round of 8	Artur Perskawiec	Lost	1557	1573	-16	47.7 %	0.0 %	-47.7 %	Lose	Lost	-	65	1525	-32
2015‑07‑18	Ostroda 2015	final	Marek -Markian- Żmuda	Won	1520	1569 P	-49	43.0 %	62.5 %	+19.5 %	Lose	Won	Win	66	1557	+37
2015‑07‑18	Ostroda 2015	semi-final	Kamil Malecki	Won	1481	1537 P	-56	42.0 %	71.4 %	+29.4 %	Lose	Won	Win	68	1520	+39
2015‑07‑18	Ostroda 2015	round of 8	Michał -Owca- Ulanowski	Won	1441 P	1500 P	-59	41.6 %	83.3 %	+41.7 %	Lose	Won	Win	70	1481	+40
2015‑05‑16	Lublin 2015	round of 16	Marcin Borkowski	Lost	1479 P	1463 P	+16	52.3 %	25.0 %	-27.3 %	Win	Lost	Loss	72	1441 P	-38
2014‑05‑10	Lublin 2014	round of 8	Luke Burrage	Lost	1500 P	1671	-171	27.2 %	16.7 %	-10.5 %	Lose	Lost	-	74	1479 P	-21