Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, J (Johan)

Chess SA id

107084211

FIDE id

Date of birth

2007-09-05 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-02-17

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	516.1	500	526.8	500
Raw rating	516.1	500	526.8	500
Weighted rating	516.1	500	526.8	500
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	439.3	449.5	432.7	449.5
Highest rating	1200 2024-11-01	1200 2024-02-01	1200 2024-11-01	1200 2024-02-01
Highest raw rating	516.1 2024-02-01	500 2024-02-01	526.8 2024-02-01	500 2024-02-01
Highest weighted rating	516.1 2024-11-01	500 2024-11-01	526.8 2024-11-01	500 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-02-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	516.1	500	526.8	500
Analysis
Rating	516.1	500	526.8	500
Raw rating	516.1	500	526.8	500
Weighted rating	516.1	500	526.8
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	439.3	449.5	432.7	449.5
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	516.1	500	526.8	500
New weighted rating	516.1	500	526.8	500
New weighted performance	0	0	0	0
Temp new rating	516.1	500	526.8	500
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	516.1	500	526.8	500
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	15	4	11

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	815.6	730.6
Standard	0	0	0	0	0	0
Rapid	5	2	40	-85	815.6	730.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	516.1	500	526.8	500
2025-09-01	516.1	500	526.8	500
2025-08-01	516.1	500	526.8	500
2025-07-01	516.1	500	526.8	500
2025-06-01	516.1	500	526.8	500
2025-05-01	516.1	500	526.8	500
2025-04-01	516.1	500	526.8	500
2025-03-01	516.1	500	526.8	500
2025-02-01	516.1	500	526.8	500
2025-01-01	516.1	500	526.8	500
2024-12-01	516.1	500	526.8	500
2024-11-01	516.1	500	526.8	500
2024-10-01	516.1	500	526.8	500
2024-09-01	516.1	500	526.8	500
2024-08-01	516.1	500	526.8	500
2024-07-01	516.1	500	526.8	500
2024-06-01	516.1	500	526.8	500
2024-08-01	516.1	500	526.8	500
2024-04-01	516.1	500	526.8	500
2024-03-01	516.1	500	526.8	500
2024-02-01	516.1	500	526.8	500
2024-01-01	516.1	500	526.8	500
2023-12-01	516.1	500	526.8	500
2023-11-01	516.1	500	526.8	500

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	North Boland Trials 2018 (U11 Boys)	2018-02-17	2018-02-17	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 4	type Rapid	result 1	date 2018-02-17	rnd 4	type Rapid	result 1
		Opponent Fortuin, R (Robin)				Opponent Fortuin, R (Robin)
2	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 2	type Rapid	result 1	date 2018-02-17	rnd 2	type Rapid	result 1
		Opponent Willemse, LH (Lee-Handrio)				Opponent Willemse, LH (Lee-Handrio)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 4	type Rapid	result 1	date 2018-02-17	rnd 4	type Rapid	result 1
		Opponent Fortuin, R (Robin)				Opponent Fortuin, R (Robin)
2	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 2	type Rapid	result 1	date 2018-02-17	rnd 2	type Rapid	result 1
		Opponent Willemse, LH (Lee-Handrio)				Opponent Willemse, LH (Lee-Handrio)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 4	type Rapid	result 1	date 2018-02-17	rnd 4	type Rapid	result 1
		Opponent Fortuin, R (Robin)				Opponent Fortuin, R (Robin)
2	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 2	type Rapid	result 1	date 2018-02-17	rnd 2	type Rapid	result 1
		Opponent Willemse, LH (Lee-Handrio)				Opponent Willemse, LH (Lee-Handrio)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 4	type Rapid	result 1	date 2018-02-17	rnd 4	type Rapid	result 1
		Opponent Fortuin, R (Robin)				Opponent Fortuin, R (Robin)
2	1	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 2	type Rapid	result 1	date 2018-02-17	rnd 2	type Rapid	result 1
		Opponent Willemse, LH (Lee-Handrio)				Opponent Willemse, LH (Lee-Handrio)

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	Fortuin ,R (Robin)	1	1	425	0	0	0	1	1	425	0	0	0
1	Fortuin ,R (Robin)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
2	Willemse ,LH (Lee-Handrio)	1	1	425	0	0	0	1	1	425	0	0	0
2	Willemse ,LH (Lee-Handrio)	1	500	925	0	0	0	1	500	925	0	0	0
3	Plaatjies ,B (Bjorn)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Plaatjies ,B (Bjorn)	1	678	253	0	0	0	1	678	253	0	0	0
4	De Wet ,M (Malcolm)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	De Wet ,M (Malcolm)	1	500	75	0	0	0	1	500	75	0	0	0
5	Titus ,L (Lucien)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Titus ,L (Lucien)	1	1200	775	0	0	0	1	1200	775	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, J (Johan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms