Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, PJ (Petrus Jeremias)

Chess SA id

102039624

FIDE id

Date of birth

2002-03-18 (Adult)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-10-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1518.3	1513.6	1352.1	1257.7
Raw rating	1518.3	1513.6	1352.1	1257.7
Weighted rating	1518.2	1513.6	1352	1257.7
Weighted performance	436.2	436.5	0	0
Floor	1053.2	1058.8	852.1	839.8
K-factor	32	32	36	36
Min/Max rating change allowed	105.4	106.1	133.5	152.7
Highest rating	1553.2 2019-12-01	1558.8 2019-12-01	1352.1 2024-02-01	1339.8 2018-01-01
Highest raw rating	1553.2 2019-12-01	1558.8 2019-12-01	1352.1 2024-02-01	1339.8 2018-01-01
Highest weighted rating	1553.2 2021-02-01	1558.8 2021-02-01	1351.7 2025-08-01	1339.8 2018-01-01
Highest weighted performance	1547.1 2019-10-01	1548.8 2019-10-01	1200 2024-02-01	1200 2024-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1518.3	1513.6	1352.1	1257.7
Analysis
Rating	1518.3	1513.6	1352.1	1257.7
Raw rating	1518.3	1513.6	1352.1	1257.7
Weighted rating	1518.2	1513.6	1352
Weighted performance	436.2	436.5	0
K-factor	32	32	36	36
Floor	1053.2	1058.8	852.1	839.8
Max/Min rating change allowed	105.4	106.1	133.5	152.7
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	1518.3	1513.6	1352.1	1257.7
New weighted rating	1518.3	1513.6	1352.1	1257.7
New weighted performance	435.6	435.9	0	0
Temp new rating	1518.3	1513.6	1352.1	1257.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1518.3	1513.6	1352.1	1257.7
New K-factor	32	32	36	36
New floor	1053.2	1058.8	852.1	839.8

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	1	1	0
	0	0	0
History	559	550	9

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	138	88	63.77	117	1309.4	1426.5
Standard	129	86.5	67.05	145	1296.5	1441.5
Rapid	0	0	0	0	0	0
Blitz	9	1.5	16.67	-283.3	1494	1210.6

Date	Main	Standard	Rapid	Blitz
2025-09-30	1518.3	1513.6	1352.1	1257.7
2025-09-01	1518.3	1513.6	1352.1	1257.7
2025-08-01	1518.3	1513.6	1352.1	1257.7
2025-07-01	1518.3	1513.6	1352.1	1257.7
2025-06-01	1518.3	1513.6	1352.1	1257.7
2025-05-01	1518.3	1513.6	1352.1	1257.7
2025-04-01	1518.3	1513.6	1352.1	1257.7
2025-03-01	1518.3	1513.6	1352.1	1257.7
2025-02-01	1518.3	1513.6	1352.1	1257.7
2025-01-01	1518.3	1513.6	1352.1	1257.7
2024-12-01	1518.3	1513.6	1352.1	1257.7
2024-11-01	1518.3	1513.6	1352.1	1257.7
2024-10-01	1518.3	1513.6	1352.1	1257.7
2024-09-01	1518.3	1513.6	1352.1	1257.7
2024-08-01	1518.3	1513.6	1352.1	1257.7
2024-07-01	1518.3	1513.6	1352.1	1257.7
2024-06-01	1518.3	1513.6	1352.1	1257.7
2024-08-01	1518.3	1513.6	1352.1	1257.7
2024-04-01	1518.3	1513.6	1352.1	1257.7
2024-03-01	1518.3	1513.6	1352.1	1257.7
2024-02-01	1518.3	1513.6	1352.1	1257.7
2024-01-01	1518.3	1513.6	1352.1	1257.7
2023-12-01	1507.6	1513.6	1339.8	1257.7
2023-11-01	1507.6	1513.6	1339.8	1257.7

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	2022 Western Province Club League (C)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	1	0	Yes	Analysis
2	Laerskool Proteapark 2020 (A)	2020-02-29	2020-02-29	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
3	2019 South African Juior Blitz Championship (A)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	2	0	Yes	Analysis
4	2019 Wild Card Chess Championship (U18 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
5	2019 South African Junior Team Championships (U18C)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	3.5	Yes	Analysis
6	2019 African Youth Chess Championship	2019-12-16	2019-12-21	Standard	Namibia (NAM)	9	9	4.5	Yes	Analysis
7	Inter Region 2019 (U18 Open)	2019-10-19	2019-10-19	Standard	Bojanala Platina (NBR)	5	5	4.5	Yes	Analysis
8	Lebone II 2019 (Open)	2019-09-14	2019-09-14	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
9	Laerskool Rustenburg 2019 (U18)	2019-08-17	2019-08-17	Standard	Bojanala Platina (NBR)	5	5	5	Yes	Analysis
10	Hoerskool Rustenburg Skaak 2019 (U18)	2019-04-13	2019-04-13	Standard	Bojanala Platina (NBR)	5	5	4.5	Yes	Analysis
11	Rustenburg Noord Primary Tournament 2019 (A)	2019-02-09	2019-02-09	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
12	Fields College Open 2019 (Open)	2019-02-02	2019-02-02	Standard	Bojanala Platina (NBR)	5	5	3.5	Yes	Analysis
13	Hoerskool Brits Tournament 2019 (A)	2019-02-09	2019-02-09	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
14	South African Junior Team Championships 2018 (U18B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
15	Lebone II Chess 2018 (U18)	2018-09-01	2018-09-01	Standard	Cape Town (WCT)	5	5	4.5	Yes	Analysis
16	Bojanala Regionals 2018 (U18+U20)	2018-09-15	2018-09-15	Standard	Bojanala Platina (NBR)	5	5	5	Yes	Analysis
17	Laerskool Brits Tournament 2018 (U18)	2018-08-04	2018-08-04	Standard	Bojanala Platina (NBR)	5	5	4.5	Yes	Analysis
18	Ho�rskool Frikkie Meyer 2018 (A)	2018-07-21	2018-07-21	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
19	Inter Regional 2018 (U18 Team)	2018-05-04	2018-05-05	Standard	Frances Baard (NCF)	5	5	4	Yes	Analysis
20	Laerskool Proteapark Chess 2018 (A)	2018-05-19	2018-05-19	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
21	2018 South African Junior Closed Chess Championships (U16 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	10	4	Yes	Analysis
22	Laerskool Vastrap 2018 (Open)	2018-02-03	2018-02-03	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
23	South African Junior Blitz 2017 Championships (A)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	7	1.5	Yes	Analysis
24	South African Junior Wildcard Championships 2017 (U16 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
25	South African Junior Team Championships 2017 (U16B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis

#	Games	Start				End
1	17	Tournament Laerskool Brits Tournament 2018				Tournament South African Junior Team Championships 2018
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Mabuse, K (Katlego)				Opponent Hay, L (Luke)
2	16	Tournament Rustenburg Noord Primary Tournament 2019				Tournament Lebone II 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-09-14	rnd 3	type Standard	result 1
		Opponent Segale, N (Neo)				Opponent Smit, CM (Carlo)
3	7	Tournament Lebone II 2019				Tournament 2019 African Youth Chess Championship
		date 2019-09-14	rnd 5	type Standard	result 1	date 2019-12-16	rnd 1	type Standard	result 0.5
		Opponent Fourie, H (Hendre)				Opponent Mpala Leeroy

#	Games	Start				End
1	17	Tournament Laerskool Brits Tournament 2018				Tournament South African Junior Team Championships 2018
		date 2018-08-04	rnd 1	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Mabuse, K (Katlego)				Opponent Hay, L (Luke)
2	16	Tournament Rustenburg Noord Primary Tournament 2019				Tournament Lebone II 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-09-14	rnd 3	type Standard	result 1
		Opponent Segale, N (Neo)				Opponent Smit, CM (Carlo)
3	7	Tournament Lebone II 2019				Tournament 2019 African Youth Chess Championship
		date 2019-09-14	rnd 5	type Standard	result 1	date 2019-12-16	rnd 1	type Standard	result 0.5
		Opponent Fourie, H (Hendre)				Opponent Mpala Leeroy

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 6	type Blitz	result 0.5	date 2018-01-07	rnd 7	type Blitz	result 1
		Opponent Raubenheimer, D (Dian)				Opponent Greyling, CF (Carel)

#	Games	Start				End
1	10	Tournament Lebone II Chess 2018				Tournament South African Junior Team Championships 2018
		date 2018-09-01	rnd 3	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Esterhuizen, WJ (Willem Johannes)				Opponent Hay, L (Luke)
2	7	Tournament Rustenburg Noord Primary Tournament 2019				Tournament Hoerskool Rustenburg Skaak 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-04-13	rnd 4	type Standard	result 1
		Opponent Segale, N (Neo)				Opponent Gray, BJ (Brandon)
3	6	Tournament Laerskool Rustenburg 2019				Tournament Lebone II 2019
		date 2019-08-17	rnd 1	type Standard	result 1	date 2019-09-14	rnd 1	type Standard	result 1
		Opponent Malila, CN (Cyril)				Opponent Austin, B (Billy-James)

#	Games	Start				End
1	10	Tournament Lebone II Chess 2018				Tournament South African Junior Team Championships 2018
		date 2018-09-01	rnd 3	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Esterhuizen, WJ (Willem Johannes)				Opponent Hay, L (Luke)
2	7	Tournament Rustenburg Noord Primary Tournament 2019				Tournament Hoerskool Rustenburg Skaak 2019
		date 2019-02-09	rnd 3	type Standard	result 1	date 2019-04-13	rnd 4	type Standard	result 1
		Opponent Segale, N (Neo)				Opponent Gray, BJ (Brandon)
3	6	Tournament Laerskool Rustenburg 2019				Tournament Lebone II 2019
		date 2019-08-17	rnd 1	type Standard	result 1	date 2019-09-14	rnd 1	type Standard	result 1
		Opponent Malila, CN (Cyril)				Opponent Austin, B (Billy-James)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 7	type Blitz	result 1	date 2018-01-07	rnd 7	type Blitz	result 1
		Opponent Greyling, CF (Carel)				Opponent Greyling, CF (Carel)

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	Smit ,CM (Carlo)	5	5	425	5	5	425	0	0	0	0	0	0
1	Smit ,CM (Carlo)	5	1254.9	1679.9	5	1261.9	1679.9	0	0	0	0	0	0
2	Esterhuizen ,WJ (Willem Johannes)	5	5	425	5	5	425	0	0	0	0	0	0
2	Esterhuizen ,WJ (Willem Johannes)	5	1233.6	1658.6	5	1234.3	1658.6	0	0	0	0	0	0
3	Modirwa ,O (Ofentse)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Modirwa ,O (Ofentse)	3	1541.4	1683.1	3	1546.6	1683.1	0	0	0	0	0	0
4	Lefyedi ,T (Thatego)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
4	Lefyedi ,T (Thatego)	3	1454.9	1454.9	3	1458.1	1454.9	0	0	0	0	0	0
5	Leseyane ,L (Lefa)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
5	Leseyane ,L (Lefa)	3	1277.2	1560.5	3	1275.1	1560.5	0	0	0	0	0	0
6	Moletsane ,OP (Oreratile Pontsho)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
6	Moletsane ,OP (Oreratile Pontsho)	3	1244.3	1527.6	3	1244.5	1527.6	0	0	0	0	0	0
7	Sebowe ,S (Stanley)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
7	Sebowe ,S (Stanley)	3	1667.2	1383.9	3	1662.6	1383.9	0	0	0	0	0	0
8	Fourie ,H (Hendre)	3	3	425	3	3	425	0	0	0	0	0	0
8	Fourie ,H (Hendre)	3	1231.9	1656.9	3	1230.5	1656.9	0	0	0	0	0	0
9	Maseng ,GT (Gomolemo Thebetsile)	3	3	425	3	3	425	0	0	0	0	0	0
9	Maseng ,GT (Gomolemo Thebetsile)	3	1150	1575	3	1151.9	1575	0	0	0	0	0	0
10	Malope ,M (Modupi)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Malope ,M (Modupi)	2	1333.2	1545.8	2	1334.6	1545.8	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

Van Der Westhuizen, PJ (Petrus Jeremias)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms