Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, PJ (Petrus)

Chess SA id

183039277

FIDE id

Date of birth

1983-08-18 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-06-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1662	1662	1734	1734
Raw rating	1662	1662	1734	1734
Weighted rating	1657.4	1657.4	1728.7	1728.7
Weighted performance	0	0	0	0
Floor	1162	1162	1234	1234
K-factor	28	28	28	28
Min/Max rating change allowed	85.9	85.9	77.5	77.5
Highest rating	1662 2024-02-01	1662 2024-02-01	1734 2024-02-01	1734 2024-02-01
Highest raw rating	1662 2024-02-01	1662 2024-02-01	1734 2024-02-01	1734 2024-02-01
Highest weighted rating	1646.5 2025-08-01	1646.5 2025-08-01	1716.2 2025-08-01	1716.2 2025-08-01
Highest weighted performance	1217.1 2019-06-01	1221.7 2019-06-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1662	1662	1734	1734
Analysis
Rating	1662	1662	1734	1734
Raw rating	1662	1662	1734	1734
Weighted rating	1657.4	1657.4	1728.7
Weighted performance	0	0	0
K-factor	28	28	28	28
Floor	1162	1162	1234	1234
Max/Min rating change allowed	85.9	85.9	77.5	77.5
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	1662	1662	1734	1734
New weighted rating	1660.5	1660.5	1732.2	1732.2
New weighted performance	0	0	0	0
Temp new rating	1662	1662	1734	1734
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1662	1662	1734	1734
New K-factor	28	28	28	28
New floor	1162	1162	1234	1234

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	5	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	5	2	40	-85	1296.3	1211.3
Standard	5	2	40	-85	1296.3	1211.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1662	1662	1734	1734
2025-09-01	1662	1662	1734	1734
2025-08-01	1662	1662	1734	1734
2025-07-01	1662	1662	1734	1734
2025-06-01	1662	1662	1734	1734
2025-05-01	1662	1662	1734	1734
2025-04-01	1662	1662	1734	1734
2025-03-01	1662	1662	1734	1734
2025-02-01	1662	1662	1734	1734
2025-01-01	1662	1662	1734	1734
2024-12-01	1662	1662	1734	1734
2024-11-01	1662	1662	1734	1734
2024-10-01	1662	1662	1734	1734
2024-09-01	1662	1662	1734	1734
2024-08-01	1662	1662	1734	1734
2024-07-01	1662	1662	1734	1734
2024-06-01	1662	1662	1734	1734
2024-08-01	1662	1662	1734	1734
2024-04-01	1662	1662	1734	1734
2024-03-01	1662	1662	1734	1734
2024-02-01	1662	1662	1734	1734
2024-01-01	1662	1662	1734	1734
2023-12-01	1197.7	1198.4	1200	1200
2023-11-01	1197.7	1198.4	1200	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	Overberg Club Champs 2019 (A)	2019-06-15	2019-06-15	Standard	Overberg (WOS)	5	5	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Overberg Club Champs 2019				Tournament Overberg Club Champs 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Davids, H (Hendrina)				Opponent Hough, P (Philip)

#	Games	Start				End
1	2	Tournament Overberg Club Champs 2019				Tournament Overberg Club Champs 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Davids, H (Hendrina)				Opponent Hough, P (Philip)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Overberg Club Champs 2019				Tournament Overberg Club Champs 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Davids, H (Hendrina)				Opponent Hough, P (Philip)

#	Games	Start				End
1	2	Tournament Overberg Club Champs 2019				Tournament Overberg Club Champs 2019
		date 2019-06-15	rnd 2	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Davids, H (Hendrina)				Opponent Hough, P (Philip)

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	Hough ,P (Philip)	1	1	425	1	1	425	0	0	0	0	0	0
1	Hough ,P (Philip)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Cookson ,J (Jaydon)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Cookson ,J (Jaydon)	1	1230.4	805.4	1	1235.2	805.4	0	0	0	0	0	0
3	Southey ,AM (Andrew Mcnab)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Southey ,AM (Andrew Mcnab)	1	1732.2	1307.2	1	1729.8	1307.2	0	0	0	0	0	0
4	Davids ,H (Hendrina)	1	1	425	1	1	425	0	0	0	0	0	0
4	Davids ,H (Hendrina)	1	1131.1	1556.1	1	1200	1556.1	0	0	0	0	0	0
5	May ,A (Adin)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	May ,A (Adin)	1	1187.8	762.8	1	1139.6	762.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Van Der Merwe, PJ (Petrus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms