Chess South Africa Ratings Database

PLAYER PAGE

Personal

Lutrin, J (Jonah)

Chess SA id

1140158077

FIDE id

Date of birth

2014-12-01 (U12)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1189.9	1198.4	1186	1200
Raw rating	1189.9	1198.3	1186	1200
Weighted rating	1189.3	1198.4	1184	1200
Weighted performance	951.3	981.5	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.2	166.2	169.2	165.8
Highest rating	1202.4 2023-07-01	1202.8 2023-07-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1202.4 2023-07-01	1202.8 2023-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1189.9	1198.4	1186	1200
Analysis
Rating	1189.9	1198.4	1186	1200
Raw rating	1189.9	1198.3	1186	1200
Weighted rating	1189.3	1198.4	1184
Weighted performance	951.3	981.5	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	168.2	166.2	169.2	165.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1189.9	1198.3	1186	1200
New weighted rating	1189.2	1198.4	1183.9	1200
New weighted performance	950.9	981.1	0	0
Temp new rating	1189.9	1198.4	1186	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1189.9	1198.4	1186	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	14	10	4
	10	10	0
	0	0	0
	0	0	0
History	29	25	4

Games since
	Main 19	Standard 15		Rapid 4		Blitz 0
Gender	Male
Age group	U12
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	5	2	40	-85	1201.7	1116.7
Standard	5	2	40	-85	1201.7	1116.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	29	12	41.38	-73.3	1229.1	1155.8
Standard	25	11	44	-51	1232.4	1181.4
Rapid	4	1	25	-212.5	1208.4	995.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1189.9	1198.3	1186	1200
2025-09-01	1189.9	1198.3	1186	1200
2025-08-01	1189.9	1198.3	1186	1200
2025-07-01	1189.9	1198.2	1186	1200
2025-06-01	1189.9	1198.1	1186	1200
2025-05-01	1189.9	1198	1186	1200
2025-04-01	1189.3	1196.9	1186	1200
2025-03-01	1190.4	1199.3	1186	1200
2025-02-01	1190	1199.3	1185	1200
2025-01-01	1181.5	1199.3	1165.1	1200
2024-12-01	1181.5	1199.3	1165.1	1200
2024-11-01	1181.5	1199.3	1165.1	1200
2024-10-01	1181.5	1199.3	1165.1	1200
2024-09-01	1181.5	1199.3	1165.1	1200
2024-08-01	1197.6	1199.3	1200	1200
2024-07-01	1197.6	1199.3	1200	1200
2024-06-01	1196.4	1197.5	1200	1200
2024-08-01	1196.4	1197.5	1200	1200
2024-04-01	1196.4	1197.5	1200	1200
2024-03-01	1196.4	1197.5	1200	1200
2024-02-01	1196.4	1197.5	1200	1200
2024-01-01	1194.9	1193.9	1200	1200
2023-12-01	1194.9	1193.9	1200	1200
2023-11-01	1194.9	1193.9	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2nd Knight Riders Junior Open 2025 (D)	2025-03-23	2025-03-23	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2nd Knight Riders Junior Open 2025 (D)	2025-03-23	2025-03-23	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	CPH King David Linksfield Aug Rapid 2024 (C)	2024-08-18	2024-08-18	Rapid	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
3	JMC Trinityhouse Little Falls 2024 (D)	2024-06-02	2024-06-02	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
4	JMC Kick Off Tournament 2024 (D)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
5	JMC Trinity Little Falls 2023 (U10)	2023-07-02	2023-07-02	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
6	GoForChess Junior Chess Championship Grayston 2023 (Juniors)	2023-07-16	2023-07-16	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 3	type Standard	result 1
		Opponent Laval, E (Ethan)				Opponent Gerber, Z (Zoe)
2	2	Tournament JMC Trinityhouse Little Falls 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-06-02	rnd 2	type Standard	result 1	date 2024-06-02	rnd 3	type Standard	result 0.5
		Opponent Jennings, K (Kayleigh)				Opponent Mahlangu, S (Samukelo)
3	2	Tournament GoForChess Junior Chess Championship Grayston 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-16	rnd 4	type Standard	result 0.5	date 2023-07-16	rnd 5	type Standard	result 1
		Opponent Collie, L (Leo)				Opponent Haiden, M (Matthew)

#	Games	Start				End
1	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 3	type Standard	result 1
		Opponent Laval, E (Ethan)				Opponent Gerber, Z (Zoe)
2	2	Tournament JMC Trinityhouse Little Falls 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-06-02	rnd 2	type Standard	result 1	date 2024-06-02	rnd 3	type Standard	result 0.5
		Opponent Jennings, K (Kayleigh)				Opponent Mahlangu, S (Samukelo)
3	2	Tournament GoForChess Junior Chess Championship Grayston 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-16	rnd 4	type Standard	result 0.5	date 2023-07-16	rnd 5	type Standard	result 1
		Opponent Collie, L (Leo)				Opponent Haiden, M (Matthew)

#	Games	Start				End
1	1	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-08-18	rnd 2	type Rapid	result 1	date 2024-08-18	rnd 2	type Rapid	result 1
		Opponent Marcou, G (Gabriel)				Opponent Marcou, G (Gabriel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 3	type Standard	result 1
		Opponent Laval, E (Ethan)				Opponent Gerber, Z (Zoe)
2	2	Tournament JMC Trinity Little Falls 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-02	rnd 5	type Standard	result 1	date 2023-07-16	rnd 1	type Standard	result 1
		Opponent Bester, J (Johannes)				Opponent Mortlock, A (Austin)
3	1	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-08-18	rnd 2	type Rapid	result 1	date 2024-08-18	rnd 2	type Rapid	result 1
		Opponent Marcou, G (Gabriel)				Opponent Marcou, G (Gabriel)

#	Games	Start				End
1	2	Tournament 2nd Knight Riders Junior Open 2025				Tournament 2nd Knight Riders Junior Open 2025
		date 2025-03-23	rnd 2	type Standard	result 1	date 2025-03-23	rnd 3	type Standard	result 1
		Opponent Laval, E (Ethan)				Opponent Gerber, Z (Zoe)
2	2	Tournament JMC Trinity Little Falls 2023				Tournament GoForChess Junior Chess Championship Grayston 2023
		date 2023-07-02	rnd 5	type Standard	result 1	date 2023-07-16	rnd 1	type Standard	result 1
		Opponent Bester, J (Johannes)				Opponent Mortlock, A (Austin)
3	1	Tournament JMC Trinityhouse Little Falls 2024				Tournament JMC Trinityhouse Little Falls 2024
		date 2024-06-02	rnd 5	type Standard	result 1	date 2024-06-02	rnd 5	type Standard	result 1
		Opponent Samsunder, A (Aryan)				Opponent Samsunder, A (Aryan)

#	Games	Start				End
1	1	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-08-18	rnd 2	type Rapid	result 1	date 2024-08-18	rnd 2	type Rapid	result 1
		Opponent Marcou, G (Gabriel)				Opponent Marcou, G (Gabriel)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Mortlock ,A (Austin)	1	1	425	1	1	425	0	0	0	0	0	0
1	Mortlock ,A (Austin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Oyetunde ,T (Tosin)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Oyetunde ,T (Tosin)	1	1266	841	1	1270	841	0	0	0	0	0	0
3	Gerber ,Z (Zoe)	1	1	425	1	1	425	0	0	0	0	0	0
3	Gerber ,Z (Zoe)	1	1118.2	1543.2	1	1115.8	1543.2	0	0	0	0	0	0
4	Mdlawuzo ,P (Philisande)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mdlawuzo ,P (Philisande)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Vemula ,D (Devesh Sai)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Vemula ,D (Devesh Sai)	1	1225.7	800.7	1	1230.2	800.7	0	0	0	0	0	0
6	Thomson-Selibowitz ,R (Ryder)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Thomson-Selibowitz ,R (Ryder)	1	1347.7	922.7	1	1328.1	922.7	0	0	0	0	0	0
7	Mahlangu ,B (Belinda)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mahlangu ,B (Belinda)	1	1195.4	770.4	1	1196.4	770.4	0	0	0	0	0	0
8	Page ,C (Connor)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Page ,C (Connor)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Du Toit ,M (Monika)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Du Toit ,M (Monika)	1	1249.5	824.5	1	1232.7	824.5	0	0	0	0	0	0
10	Laval ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Laval ,E (Ethan)	1	1198.5	1623.5	1	1196.7	1623.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Lutrin, J (Jonah)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms