Fight Night Combat - Grzegorz Jastrzębski

Grzegorz Jastrzębski

Full name:	Grzegorz Jastrzębski
Current rank:	=216th	since July 31, 2023
Highest Rank:	5th	first reached August 16, 2021 (1 week in total)
Highest Year-End Rank:	11th	(2020)
Titles/finals:	2/3
Elo Rating:	1553

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
2022‑07‑23	Ostroda 2022	round of 8	Krzysztof Czarski	Lost	1587	1477	+110	65.3 %	44.4 %	-20.9 %	Win	Lost	Upset Loss	52	1553	-34
2021‑08‑20	Ostroda 2021	round of 8	Jerzy Kozłowski	Lost	1619	1556	+63	59.0 %	16.7 %	-42.3 %	Win	Lost	Upset Loss	53	1587	-32
2021‑08‑13	OFCA 2021	final	Amadeusz Kołak	Won	1587	1661	-74	39.5 %	83.3 %	+43.8 %	Lose	Won	Upset Win	54	1619	+32
2021‑08‑13	OFCA 2021	semi-final	Krzysztof Kostera	Won	1548	1716	-168	27.5 %	71.4 %	+43.9 %	Lose	Won	Upset Win	55	1587	+39
2021‑08‑13	OFCA 2021	round of 8	Bartek Danielkiewicz	Won	1530	1418	+112	65.6 %	62.5 %	-3.1 %	Win	Won	-	55	1548	+18
2020‑08‑29	Buskerbus 2020	final	Ian Deady	Won	1493	1610	-117	33.8 %	71.4 %	+37.7 %	Lose	Won	Upset Win	56	1530	+37
2020‑08‑29	Buskerbus 2020	semi-final	Krzysztof Czarski	Won	1468	1433	+35	55.0 %	83.3 %	+28.3 %	Win	Won	-	57	1493	+25
2020‑08‑29	Buskerbus 2020	round of 8	Janna Wohlfarth	Won	1434	1500 P	-66	40.6 %	71.4 %	+30.8 %	Lose	Won	Win	58	1468	+34
2020‑08‑21	Ostroda 2020	final	Krzysztof Kostera	Lost	1446	1689	-243	19.8 %	0.0 %	-19.8 %	Lose	Lost	-	60	1434	-12
2020‑08‑21	Ostroda 2020	semi-final	Jakub Czekała	Won	1398	1640	-242	19.9 %	55.6 %	+35.7 %	Lose	Won	Upset Win	61	1446	+48
2020‑08‑21	Ostroda 2020	round of 8	Wojciech Opara	Won	1361	1439 P	-78	39.0 %	71.4 %	+32.5 %	Lose	Won	Win	62	1398	+37
2020‑01‑23	Ostroda Winter 2020	round of 8	Jerzy Kozłowski	Lost	1385	1481	-96	36.5 %	0.0 %	-36.5 %	Lose	Lost	-	63	1361	-24
2019‑08‑24	Ostroda 2019	third place match	Jerzy Kozłowski	Lost	1414	1461	-47	43.3 %	37.5 %	-5.8 %	Lose	Lost	-	65	1385	-29
2019‑08‑24	Ostroda 2019	semi-final	Krzysztof Kostera	Lost	1433	1600	-167	27.7 %	16.7 %	-11.0 %	Lose	Lost	-	66	1414	-19
2019‑08‑24	Ostroda 2019	round of 8	Krystian Kucharski	Won	1399	1409	-10	48.6 %	100.0 %	+51.4 %	Lose	Won	Upset Win	68	1433	+34
2019‑05‑23	Lublin 2019	round of 8	Krzysztof Kostera	Lost	1425 P	1520 P	-95	36.7 %	16.7 %	-20.0 %	Lose	Lost	-	70	1399	-26
2019‑01‑26	Ostroda Winter 2019	round of 8	Krzysztof Kostera	Lost	1460 P	1473 P	-13	48.1 %	28.6 %	-19.6 %	Lose	Lost	-	72	1425 P	-35
2015‑05‑16	Lublin 2015	round of 16	Jacek Kwapiński	Lost	1500 P	1478 P	+22	53.2 %	25.0 %	-28.2 %	Win	Lost	Loss	74	1460 P	-40