Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kruger, J (Jan Harm)

Chess SA id

1110302092

FIDE id

Date of birth

2011-11-06 (U16)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1178.6	1176.5	1200	1200
Raw rating	1178.6	1176.5	1200	1200
Weighted rating	1176.7	1173.8	1200	1200
Weighted performance	1073.9	1071.9	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	171	171.5	165.8	165.8
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-05-01	1200 2024-05-01
Highest raw rating	1200 2024-04-01	1200 2024-04-01	1200 2024-05-01	1200 2024-05-01
Highest weighted rating	1200 2024-11-01	1200 2024-11-01	1200 2024-05-01	1200 2024-05-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-05-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1178.6	1176.5	1200	1200
Analysis
Rating	1178.6	1176.5	1200	1200
Raw rating	1178.6	1176.5	1200	1200
Weighted rating	1176.7	1173.8	1200
Weighted performance	1073.9	1071.9	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	171	171.5	165.8	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	1178.6	1176.5	1200	1200
New weighted rating	1176.6	1173.8	1200	1200
New weighted performance	1073.5	1071.5	0	0
Temp new rating	1178.6	1176.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1178.6	1176.5	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	9	9
	13	13
	0	0
	0	0
	0	0
History	22	22

Games since
	Main 22	Standard 22		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	9	4	44.44	-47.2	1202.9	1155.7
Standard	9	4	44.44	-47.2	1202.9	1155.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	22	8	36.36	-115.9	1249.3	1133.4
Standard	22	8	36.36	-115.9	1249.3	1133.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1178.6	1176.5	1200	1200
2025-09-01	1178.6	1176.5	1200	1200
2025-08-01	1177.4	1174.4	1200	1200
2025-07-01	1177.4	1174.4	1200	1200
2025-06-01	1177.2	1174.2	1200	1200
2025-05-01	1179.5	1176.9	1200	1200
2025-04-01	1179.5	1176.9	1200	1200
2025-03-01	1179.5	1176.9	1200	1200
2025-02-01	1179.5	1176.9	1200	1200
2025-01-01	1175.4	1173.6	1200	1200
2024-12-01	1175.4	1173.6	1200	1200
2024-11-01	1175.4	1173.6	1200	1200
2024-10-01	1175.4	1173.6	1200	1200
2024-09-01	1175.4	1173.6	1200	1200
2024-08-01	1157.5	1151.2	1200	1200
2024-07-01	1157.5	1151.2	1200	1200
2024-06-01	1151.9	1141.6	1200	1200
2024-08-01	1151.9	1141.6	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	GDE (D7) Sedibeng East Schools 2025 (U15)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
2	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U15 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	GDE (D7) Sedibeng East Schools 2025 (U15)	2025-08-02	2025-08-02	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
2	GDE Sedibeng East Schools - D7 Individuals 24 May 2025 (U15 Boys)	2025-05-24	2025-05-24	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
3	Sedibeng East D7 Teams Trials 2024 (U13)	2024-08-03	2024-08-03	Standard	Sedibeng (GSV)	5	4	2	Yes	Analysis
4	AG Visser Open 2024 (C)	2024-06-08	2024-06-08	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
5	Hoerskool Overvaal Chess Open 2024 (C)	2024-04-20	2024-04-20	Standard	Sedibeng (GSV)	5	4	0	Yes	Analysis

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Nthethe, H (Happy)				Opponent Mokoatsi, K (Kgoitsimodimo)
2	2	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-05-24	rnd 3	type Standard	result 0.5	date 2025-05-24	rnd 4	type Standard	result 0.5
		Opponent Beere, R (Rydan)				Opponent Mokoena, K (Katleho)
3	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Motobodi, T (Tebogo)				Opponent Vilakazi, Z (Zinhle)

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Nthethe, H (Happy)				Opponent Mokoatsi, K (Kgoitsimodimo)
2	2	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-05-24	rnd 3	type Standard	result 0.5	date 2025-05-24	rnd 4	type Standard	result 0.5
		Opponent Beere, R (Rydan)				Opponent Mokoena, K (Katleho)
3	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Motobodi, T (Tebogo)				Opponent Vilakazi, Z (Zinhle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Nthethe, H (Happy)				Opponent Mokoatsi, K (Kgoitsimodimo)
2	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Motobodi, T (Tebogo)				Opponent Vilakazi, Z (Zinhle)
3	1	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-05-24	rnd 1	type Standard	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Pino, N (Ntando)				Opponent Pino, N (Ntando)

#	Games	Start				End
1	2	Tournament GDE (D7) Sedibeng East Schools 2025				Tournament GDE (D7) Sedibeng East Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Nthethe, H (Happy)				Opponent Mokoatsi, K (Kgoitsimodimo)
2	2	Tournament Sedibeng East D7 Teams Trials 2024				Tournament Sedibeng East D7 Teams Trials 2024
		date 2024-08-03	rnd 3	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Motobodi, T (Tebogo)				Opponent Vilakazi, Z (Zinhle)
3	1	Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025				Tournament GDE Sedibeng East Schools - D7 Individuals 24 May 2025
		date 2025-05-24	rnd 1	type Standard	result 1	date 2025-05-24	rnd 1	type Standard	result 1
		Opponent Pino, N (Ntando)				Opponent Pino, N (Ntando)

No games found.

#	Games	Start				End

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	Mokoena ,K (Katleho)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Mokoena ,K (Katleho)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
2	Mofokeng ,B (Bokamoso)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Mofokeng ,B (Bokamoso)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Vilakazi ,Z (Zinhle)	1	1	425	1	1	425	0	0	0	0	0	0
3	Vilakazi ,Z (Zinhle)	1	1248.6	1673.6	1	1255.6	1673.6	0	0	0	0	0	0
4	Odendaal ,H (Hayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Odendaal ,H (Hayden)	1	1320	895	1	1361.2	895	0	0	0	0	0	0
5	Van Rensburg ,H (Hanno)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Rensburg ,H (Hanno)	1	1197.5	772.5	1	1183.4	772.5	0	0	0	0	0	0
6	Nthethe ,H (Happy)	1	1	425	1	1	425	0	0	0	0	0	0
6	Nthethe ,H (Happy)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Smith ,KE (Kaiden Elljay)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Smith ,KE (Kaiden Elljay)	1	1340.8	915.8	1	1347.1	915.8	0	0	0	0	0	0
8	Olmann ,M (Michael Jurgen)	1	1	425	1	1	425	0	0	0	0	0	0
8	Olmann ,M (Michael Jurgen)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Beere ,R (Rydan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Beere ,R (Rydan)	1	1104.4	1104.4	1	1083.6	1104.4	0	0	0	0	0	0
10	Mofamati ,K (Katleho)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mofamati ,K (Katleho)	1	1164.5	739.5	1	1160.6	739.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Kruger, J (Jan Harm)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms