Chess South Africa Ratings Database

PLAYER PAGE

Personal

Retief, J (Janse)

Chess SA id

1130150407

FIDE id

Date of birth

2013-02-24 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-06-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1253.2	1237.1	1236.4	1200
Raw rating	1253.2	1237.1	1236.4	1200
Weighted rating	1253.2	1237.1	1236.4	1200
Weighted performance	0	0	0	0
Floor	753.2	739.6	736.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	153.7	157.3	157.4	165.8
Highest rating	1264.8 2023-02-01	1341.2 2023-02-01	1294.7 2023-02-01	1200 2018-10-01
Highest raw rating	1253.2 2024-03-01	1239.6 2023-03-01	1236.4 2024-03-01	1200 2024-03-01
Highest weighted rating	1253.2 2025-05-05	1239.6 2025-02-01	1236.4 2025-05-05	1200 2018-10-01
Highest weighted performance	1264.8 2023-02-01	1341.2 2023-02-01	1294.7 2023-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1253.2	1237.1	1236.4	1200
Analysis
Rating	1253.2	1237.1	1236.4	1200
Raw rating	1253.2	1237.1	1236.4	1200
Weighted rating	1253.2	1237.1	1236.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	753.2	739.6	736.4	700
Max/Min rating change allowed	153.7	157.3	157.4	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	1253.2	1237.1	1236.4	1200
New weighted rating	1253.2	1237.1	1236.4	1200
New weighted performance	0	0	0	0
Temp new rating	1253.2	1237.1	1236.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1253.2	1237.1	1236.4	1200
New K-factor	36	36	36	36
New floor	753.2	739.6	736.4	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	25	12	13
	0	0	0
	0	0	0
History	25	12	13

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	25	14	56	51	1238.2	1289.2
Standard	12	7	58.33	70.8	1232.2	1303
Rapid	13	7	53.85	32.7	1243.8	1276.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1253.2	1237.1	1236.4	1200
2025-09-30	1253.2	1237.1	1236.4	1200
2025-09-01	1253.2	1237.1	1236.4	1200
2025-08-01	1253.2	1237.1	1236.4	1200
2025-07-01	1253.2	1237.1	1236.4	1200
2025-06-01	1253.2	1237.1	1236.4	1200
2025-05-01	1253.2	1237.1	1236.4	1200
2025-04-01	1253.2	1237.1	1236.4	1200
2025-03-01	1253.2	1237.1	1236.4	1200
2025-02-01	1253.2	1237.1	1236.4	1200
2025-01-01	1253.2	1237.1	1236.4	1200
2024-12-01	1253.2	1237.1	1236.4	1200
2024-11-01	1253.2	1237.1	1236.4	1200
2024-10-01	1253.2	1237.1	1236.4	1200
2024-09-01	1253.2	1237.1	1236.4	1200
2024-08-01	1253.2	1237.1	1236.4	1200
2024-07-01	1253.2	1237.1	1236.4	1200
2024-09-01	1253.2	1237.1	1236.4	1200
2024-05-01	1253.2	1237.1	1236.4	1200
2024-04-01	1253.2	1237.1	1236.4	1200
2024-03-01	1253.2	1237.1	1236.4	1200
2024-02-01	1253.2	1237.1	1236.4	1200
2024-01-01	1253.2	1237.1	1236.4	1200
2023-12-01	1253.2	1237.1	1236.4	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	GPCA Rapid 2023 (U12)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	3.5	Yes	Analysis
2	Cape Town Metro Schools Chess Closed Individuals 2023 (U11 Boys)	2023-03-03	2023-03-04	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
3	North District School Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
4	Laerskool Welgemoed Rapid 2023 (U12)	2023-02-11	2023-02-11	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-04	rnd 5	type Standard	result 1
		Opponent Dennis, N (Nathier)				Opponent Waldeck, A (Aaron)
2	3	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament GPCA Rapid 2023
		date 2023-03-04	rnd 6	type Standard	result 0.5	date 2023-06-24	rnd 2	type Rapid	result 0.5
		Opponent Siteto, L (Lindokuhle)				Opponent Bernardo, J (Jean-Luc)
3	2	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 0.5
		Opponent Waldeck, A (Aaron)				Opponent Louw, L (Lukas)

#	Games	Start				End
1	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-04	rnd 5	type Standard	result 1
		Opponent Dennis, N (Nathier)				Opponent Waldeck, A (Aaron)
2	2	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 0.5
		Opponent Waldeck, A (Aaron)				Opponent Louw, L (Lukas)
3	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 6	type Standard	result 0.5	date 2023-03-04	rnd 6	type Standard	result 0.5
		Opponent Siteto, L (Lindokuhle)				Opponent Siteto, L (Lindokuhle)

#	Games	Start				End
1	3	Tournament Laerskool Welgemoed Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-02-11	rnd 6	type Rapid	result 1	date 2023-06-24	rnd 2	type Rapid	result 0.5
		Opponent September, C (Chameeka)				Opponent Bernardo, J (Jean-Luc)
2	2	Tournament Laerskool Welgemoed Rapid 2023				Tournament Laerskool Welgemoed Rapid 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 2	type Rapid	result 0.5
		Opponent Calitz, S (Steyn)				Opponent Sher, J (Jonah)
3	1	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 6	type Rapid	result 1	date 2023-06-24	rnd 6	type Rapid	result 1
		Opponent Booysen, G (Giavanna)				Opponent Booysen, G (Giavanna)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-04	rnd 5	type Standard	result 1
		Opponent Dennis, N (Nathier)				Opponent Waldeck, A (Aaron)
2	2	Tournament Laerskool Welgemoed Rapid 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-02-11	rnd 6	type Rapid	result 1	date 2023-03-03	rnd 1	type Standard	result 1
		Opponent September, C (Chameeka)				Opponent Van Zyl, F (Frede)
3	1	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 6	type Rapid	result 1	date 2023-06-24	rnd 6	type Rapid	result 1
		Opponent Booysen, G (Giavanna)				Opponent Booysen, G (Giavanna)

#	Games	Start				End
1	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-03	rnd 2	type Standard	result 1	date 2023-02-04	rnd 5	type Standard	result 1
		Opponent Dennis, N (Nathier)				Opponent Waldeck, A (Aaron)
2	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Waldeck, A (Aaron)				Opponent Waldeck, A (Aaron)
3	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-03	rnd 1	type Standard	result 1	date 2023-03-03	rnd 1	type Standard	result 1
		Opponent Van Zyl, F (Frede)				Opponent Van Zyl, F (Frede)

#	Games	Start				End
1	2	Tournament Laerskool Welgemoed Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-02-11	rnd 6	type Rapid	result 1	date 2023-06-24	rnd 1	type Rapid	result 1
		Opponent September, C (Chameeka)				Opponent Wang, Z (Zi Ang)
2	1	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 6	type Rapid	result 1	date 2023-06-24	rnd 6	type Rapid	result 1
		Opponent Booysen, G (Giavanna)				Opponent Booysen, G (Giavanna)
3	1	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 4	type Rapid	result 1	date 2023-06-24	rnd 4	type Rapid	result 1
		Opponent Meyer, A (Adam)				Opponent Meyer, A (Adam)

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	Waldeck ,A (Aaron)	2	2	425	2	2	425	0	0	0	0	0	0
1	Waldeck ,A (Aaron)	2	1215.9	1640.9	2	1220	1640.9	0	0	0	0	0	0
2	Calitz ,S (Steyn)	2	2	425	1	1	425	1	1	425	0	0	0
2	Calitz ,S (Steyn)	2	1184.3	1609.3	1	1200	1609.3	1	1199.2	1609.3	0	0	0
3	Fourie ,R (Ruan)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Fourie ,R (Ruan)	2	1282.6	857.6	1	1200	857.6	1	1234.1	857.6	0	0	0
4	De Villiers ,C (Christiaan)	2	1	0	1	1	425	1	0	-425	0	0	0
4	De Villiers ,C (Christiaan)	2	1296.1	1296.1	1	1200	1721.1	1	1393	871.1	0	0	0
5	Malherbe ,J (Jeevan)	2	0	-425	0	0	0	2	0	-425	0	0	0
5	Malherbe ,J (Jeevan)	2	1352.2	927.2	0	0	0	2	1312.1	927.2	0	0	0
6	Grove ,T (Tyler)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Grove ,T (Tyler)	1	1227.9	802.9	1	1188.8	802.9	0	0	0	0	0	0
7	Siteto ,L (Lindokuhle)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Siteto ,L (Lindokuhle)	1	1216.9	1216.9	1	1219.2	1216.9	0	0	0	0	0	0
8	Van Zyl ,F (Frede)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Zyl ,F (Frede)	1	1283.2	1708.2	1	1243.2	1708.2	0	0	0	0	0	0
9	Dennis ,N (Nathier)	1	1	425	1	1	425	0	0	0	0	0	0
9	Dennis ,N (Nathier)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Copley ,M (Murray)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Copley ,M (Murray)	1	1178.8	753.8	1	1162	753.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Retief, J (Janse)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms