Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pieterse, J (Jean)

Chess SA id

1150315034

FIDE id

Date of birth

2015-06-12 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1006.7

Item	Main	Standard	Rapid	Blitz
Rating	1199.6	1199.7	1201.8	1200
Raw rating	1199.6	1199.7	1201.7	1200
Weighted rating	1199.6	1199.7	1201.8	1200
Weighted performance	0	0	0	0
Floor	699.9	699.9	707.2	700
K-factor	40	40	36	36
Min/Max rating change allowed	165.9	165.9	165.4	165.8
Highest rating	1199.9 2025-02-13	1199.9 2025-02-13	1207.2 2025-03-01	1200 2025-03-01
Highest raw rating	1199.9 2025-02-13	1199.9 2025-02-13	1207.2 2025-03-01	1200 2025-03-01
Highest weighted rating	1199.9 2025-02-13	1199.9 2025-02-13	1207.2 2025-05-05	1200 2025-03-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1199.6	1199.7	1201.8	1200
Analysis
Rating	1199.6	1199.7	1201.8	1200
Raw rating	1199.6	1199.7	1201.7	1200
Weighted rating	1199.6	1199.7	1201.8
Weighted performance	0	0	0
K-factor	40	40	36	36
Floor	699.9	699.9	707.2	700
Max/Min rating change allowed	165.9	165.9	165.4	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	1199.6	1199.7	1201.7	1200
New weighted rating	1199.6	1199.7	1201.8	1200
New weighted performance	0	0	0	0
Temp new rating	1199.6	1199.7	1201.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1199.6	1199.7	1201.8	1200
New K-factor	40	40	36	36
New floor	699.9	699.9	707.2	700

Item	Main	Standard	Rapid
	0	0	0
	18	6	12
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	18	6	12

Games since
	Main 18	Standard 6		Rapid 12		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	18	7	38.89	-94.4	1219.3	1124.9
Standard	6	2	33.33	-141.7	1196.4	1054.7
Rapid	12	5	41.67	-70.8	1230.8	1159.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	18	7	38.89	-94.4	1219.3	1124.9
Standard	6	2	33.33	-141.7	1196.4	1054.7
Rapid	12	5	41.67	-70.8	1230.8	1159.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1199.6	1199.7	1201.7	1200
2025-09-01	1199.6	1199.7	1201.7	1200
2025-08-01	1199.6	1199.7	1201.7	1200
2025-07-01	1199.5	1199.7	1201.5	1200
2025-06-01	1198.4	1199.7	1200	1200
2025-05-01	1199.8	1199.7	1207.2	1200
2025-04-01	1199.6	1199.5	1207.2	1200
2025-03-01	1197.5	1196.8	1207.2	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	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	St John's CBC Rapid 2025 (U10)	2025-05-24	2025-05-24	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
2	Laerskool Welgemoed Rapid 2025 (U12)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
3	CT Metro North Schools Chess Individual Trials 2025 (U11 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	St John's CBC Rapid 2025 (U10)	2025-05-24	2025-05-24	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
2	Laerskool Welgemoed Rapid 2025 (U12)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
3	CT Metro North Schools Chess Individual Trials 2025 (U11 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 3	type Rapid	result 1	date 2025-02-15	rnd 5	type Rapid	result 1
		Opponent De Wet, M (Marco)				Opponent Botha, L (Leane)
2	2	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 2	type Rapid	result 1
		Opponent Varughese, Y (Yohaan)				Opponent Schwartz, M (Michael)
3	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 6	type Standard	result 1	date 2025-02-09	rnd 6	type Standard	result 1
		Opponent Ackerman, J (James)				Opponent Ackerman, J (James)

#	Games	Start				End
1	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 6	type Standard	result 1	date 2025-02-09	rnd 6	type Standard	result 1
		Opponent Ackerman, J (James)				Opponent Ackerman, J (James)
2	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 4	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Marie, C (Callum)				Opponent Marie, C (Callum)

#	Games	Start				End
1	3	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 3	type Rapid	result 1	date 2025-02-15	rnd 5	type Rapid	result 1
		Opponent De Wet, M (Marco)				Opponent Botha, L (Leane)
2	2	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 2	type Rapid	result 1
		Opponent Varughese, Y (Yohaan)				Opponent Schwartz, M (Michael)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 3	type Rapid	result 1	date 2025-02-15	rnd 5	type Rapid	result 1
		Opponent De Wet, M (Marco)				Opponent Botha, L (Leane)
2	2	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 2	type Rapid	result 1
		Opponent Varughese, Y (Yohaan)				Opponent Schwartz, M (Michael)
3	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 6	type Standard	result 1	date 2025-02-09	rnd 6	type Standard	result 1
		Opponent Ackerman, J (James)				Opponent Ackerman, J (James)

#	Games	Start				End
1	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 6	type Standard	result 1	date 2025-02-09	rnd 6	type Standard	result 1
		Opponent Ackerman, J (James)				Opponent Ackerman, J (James)
2	1	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-09	rnd 4	type Standard	result 1	date 2025-02-09	rnd 4	type Standard	result 1
		Opponent Marie, C (Callum)				Opponent Marie, C (Callum)

#	Games	Start				End
1	3	Tournament Laerskool Welgemoed Rapid 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-15	rnd 3	type Rapid	result 1	date 2025-02-15	rnd 5	type Rapid	result 1
		Opponent De Wet, M (Marco)				Opponent Botha, L (Leane)
2	2	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 2	type Rapid	result 1
		Opponent Varughese, Y (Yohaan)				Opponent Schwartz, M (Michael)

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	Finnegan Kros ,J (Jake)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Finnegan Kros ,J (Jake)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Marie ,C (Callum)	1	1	425	1	1	425	0	0	0	0	0	0
2	Marie ,C (Callum)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Ackerman ,J (James)	1	1	425	1	1	425	0	0	0	0	0	0
3	Ackerman ,J (James)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Jacobs ,H (Handr�)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Jacobs ,H (Handr�)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Pieterse ,Z (Zanru)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Pieterse ,Z (Zanru)	1	1149.7	724.7	1	1146.7	724.7	0	0	0	0	0	0
6	Singh ,A (Arhaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Singh ,A (Arhaan)	1	1228.7	803.7	1	1261.6	803.7	0	0	0	0	0	0
7	Rocher ,A (Andrew)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Rocher ,A (Andrew)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Mzizana ,U (Ulungile)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Mzizana ,U (Ulungile)	1	1281.1	856.1	0	0	0	1	1283	856.1	0	0	0
9	Varughese ,Y (Yohaan)	1	1	425	0	0	0	1	1	425	0	0	0
9	Varughese ,Y (Yohaan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Harrington ,J (Jesse)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Harrington ,J (Jesse)	1	1189.6	764.6	0	0	0	1	1182.7	764.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Pieterse, J (Jean)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms