Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, J (Josua)

Chess SA id

1140162269

FIDE id

Date of birth

2014-04-16 (U12)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1164.4	1163.6	1185.3	1200
Raw rating	1164.4	1163.6	1185.3	1200
Weighted rating	1160.1	1159.5	1183.2	1200
Weighted performance	914	909.7	0	0
Floor	705.7	705.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	174.4	174.6	169.3	165.8
Highest rating	1246.8 2023-09-01	1238.3 2023-09-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1205.7 2024-03-01	1205.8 2024-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1205.7 2024-03-01	1205.8 2024-03-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1246.8 2023-09-01	1238.3 2023-09-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1164.4	1163.6	1185.3	1200
Analysis
Rating	1164.4	1163.6	1185.3	1200
Raw rating	1164.4	1163.6	1185.3	1200
Weighted rating	1160.1	1159.5	1183.2
Weighted performance	914	909.7	0
K-factor	36	36	36	36
Floor	705.7	705.8	700	700
Max/Min rating change allowed	174.4	174.6	169.3	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	1164.4	1163.6	1185.3	1200
New weighted rating	1160	1159.5	1183	1200
New weighted performance	913.6	909.4	0	0
Temp new rating	1164.4	1163.6	1185.3	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1164.4	1163.6	1185.3	1200
New K-factor	36	36	36	36
New floor	705.7	705.8	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	26	19	7
	5	5	0
	0	0	0
	0	0	0
History	31	24	7

Games since
	Main 26	Standard 19		Rapid 7		Blitz 0
Gender	Male
Age group	U12
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
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	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	31	11	35.48	-123.4	1224.1	1100.7
Standard	24	9	37.5	-106.2	1214.4	1108.1
Rapid	7	2	28.57	-182.1	1257.6	1075.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1164.4	1163.6	1185.3	1200
2025-09-01	1164.4	1163.6	1185.3	1200
2025-08-01	1164.4	1163.6	1185.3	1200
2025-07-01	1164.4	1163.6	1185.3	1200
2025-06-01	1164.4	1163.6	1185.3	1200
2025-05-01	1164.4	1163.6	1185.3	1200
2025-04-01	1164.4	1163.6	1185.3	1200
2025-03-01	1164.4	1163.6	1185.3	1200
2025-02-01	1163.9	1163.5	1184.2	1200
2025-01-01	1144	1149	1163.3	1200
2024-12-01	1144	1149	1163.3	1200
2024-11-01	1144	1149	1163.3	1200
2024-10-01	1144	1149	1163.3	1200
2024-09-01	1144	1149	1163.3	1200
2024-08-01	1155.9	1149	1200	1200
2024-07-01	1155.9	1149	1200	1200
2024-06-01	1155.9	1149	1200	1200
2024-08-01	1120.3	1101.1	1200	1200
2024-04-01	1160.3	1151.1	1200	1200
2024-03-01	1205.7	1205.8	1200	1200
2024-02-01	1205.7	1205.8	1200	1200
2024-01-01	1205.7	1205.8	1200	1200
2023-12-01	1205.7	1205.8	1200	1200
2023-11-01	1205.7	1205.8	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	Bojanala's Kings & Queens Rapid and Doubles 2024 (Open)	2024-08-10	2024-08-10	Rapid	Bojanala Platina (NBR)	7	7	2	Yes	Analysis
2	Bojanala Circuit Championship 1 of 4 2024 (U12)	2024-05-25	2024-05-25	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
3	Schoemies' Kwaggarus Chess Getaway 2024 (Junior)	2024-05-18	2024-05-18	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
4	Bojanala Olienpark's One For The Ages 2024 (Knights)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	0.5	Yes	Analysis
5	Schoemies' Kings & Queens 2024 (Knights)	2024-03-02	2024-03-02	Standard	Bojanala Platina (NBR)	5	4	0.5	Yes	Analysis
6	Bojanala's Battle Of Mount Cambridge 2023 (Cener Pawns)	2023-09-16	2023-09-16	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Schoemies' Kwaggarus Chess Getaway 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-05-18	rnd 2	type Standard	result 1	date 2024-05-18	rnd 4	type Standard	result 1
		Opponent Opperman, M (Marli Frances)				Opponent Pieterse, J (Jurgens)
2	2	Tournament Bojanala's Battle Of Mount Cambridge 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-09-16	rnd 4	type Standard	result 1	date 2023-09-16	rnd 5	type Standard	result 1
		Opponent Brumskine, W (Willow)				Opponent Maserumule, T (Tlotlo)
3	1	Tournament Bojanala's Kings & Queens Rapid and Doubles 2024				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2024-08-10	rnd 7	type Rapid	result 1	date 2024-08-10	rnd 7	type Rapid	result 1
		Opponent Coetzee, W (Willie)				Opponent Coetzee, W (Willie)

#	Games	Start				End
1	3	Tournament Schoemies' Kwaggarus Chess Getaway 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-05-18	rnd 2	type Standard	result 1	date 2024-05-18	rnd 4	type Standard	result 1
		Opponent Opperman, M (Marli Frances)				Opponent Pieterse, J (Jurgens)
2	2	Tournament Bojanala's Battle Of Mount Cambridge 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-09-16	rnd 4	type Standard	result 1	date 2023-09-16	rnd 5	type Standard	result 1
		Opponent Brumskine, W (Willow)				Opponent Maserumule, T (Tlotlo)
3	1	Tournament Bojanala Circuit Championship 1 of 4 2024				Tournament Bojanala Circuit Championship 1 of 4 2024
		date 2024-05-25	rnd 4	type Standard	result 1	date 2024-05-25	rnd 4	type Standard	result 1
		Opponent Pilane, M (Maemo)				Opponent Pilane, M (Maemo)

#	Games	Start				End
1	1	Tournament Bojanala's Kings & Queens Rapid and Doubles 2024				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2024-08-10	rnd 7	type Rapid	result 1	date 2024-08-10	rnd 7	type Rapid	result 1
		Opponent Coetzee, W (Willie)				Opponent Coetzee, W (Willie)
2	1	Tournament Bojanala's Kings & Queens Rapid and Doubles 2024				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2024-08-10	rnd 5	type Rapid	result 1	date 2024-08-10	rnd 5	type Rapid	result 1
		Opponent Zwane, K (Koketso)				Opponent Zwane, K (Koketso)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Schoemies' Kwaggarus Chess Getaway 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-05-18	rnd 2	type Standard	result 1	date 2024-05-18	rnd 4	type Standard	result 1
		Opponent Opperman, M (Marli Frances)				Opponent Pieterse, J (Jurgens)
2	2	Tournament Bojanala's Battle Of Mount Cambridge 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-09-16	rnd 4	type Standard	result 1	date 2023-09-16	rnd 5	type Standard	result 1
		Opponent Brumskine, W (Willow)				Opponent Maserumule, T (Tlotlo)
3	1	Tournament Bojanala's Kings & Queens Rapid and Doubles 2024				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2024-08-10	rnd 7	type Rapid	result 1	date 2024-08-10	rnd 7	type Rapid	result 1
		Opponent Coetzee, W (Willie)				Opponent Coetzee, W (Willie)

#	Games	Start				End
1	3	Tournament Schoemies' Kwaggarus Chess Getaway 2024				Tournament Schoemies' Kwaggarus Chess Getaway 2024
		date 2024-05-18	rnd 2	type Standard	result 1	date 2024-05-18	rnd 4	type Standard	result 1
		Opponent Opperman, M (Marli Frances)				Opponent Pieterse, J (Jurgens)
2	2	Tournament Bojanala's Battle Of Mount Cambridge 2023				Tournament Bojanala's Battle Of Mount Cambridge 2023
		date 2023-09-16	rnd 4	type Standard	result 1	date 2023-09-16	rnd 5	type Standard	result 1
		Opponent Brumskine, W (Willow)				Opponent Maserumule, T (Tlotlo)
3	1	Tournament Bojanala Circuit Championship 1 of 4 2024				Tournament Bojanala Circuit Championship 1 of 4 2024
		date 2024-05-25	rnd 4	type Standard	result 1	date 2024-05-25	rnd 4	type Standard	result 1
		Opponent Pilane, M (Maemo)				Opponent Pilane, M (Maemo)

#	Games	Start				End
1	1	Tournament Bojanala's Kings & Queens Rapid and Doubles 2024				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2024-08-10	rnd 7	type Rapid	result 1	date 2024-08-10	rnd 7	type Rapid	result 1
		Opponent Coetzee, W (Willie)				Opponent Coetzee, W (Willie)
2	1	Tournament Bojanala's Kings & Queens Rapid and Doubles 2024				Tournament Bojanala's Kings & Queens Rapid and Doubles 2024
		date 2024-08-10	rnd 5	type Rapid	result 1	date 2024-08-10	rnd 5	type Rapid	result 1
		Opponent Zwane, K (Koketso)				Opponent Zwane, K (Koketso)

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	Sengfeng ,TG (Thoane Goabaone)	2	2	425	2	2	425	0	0	0	0	0	0
1	Sengfeng ,TG (Thoane Goabaone)	2	1157.7	1582.7	2	1149.3	1582.7	0	0	0	0	0	0
2	Pretorius ,S (Sarel)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Pretorius ,S (Sarel)	1	1437.5	1012.5	1	1439.9	1012.5	0	0	0	0	0	0
3	Voigt ,R (Rainer)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Voigt ,R (Rainer)	1	1108.4	1108.4	1	1066.9	1108.4	0	0	0	0	0	0
4	Senetse ,T (Tshepang)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Senetse ,T (Tshepang)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Mbatha ,T (Thamsanqa)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Mbatha ,T (Thamsanqa)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
6	Tolmay ,L (Lourens)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Tolmay ,L (Lourens)	1	1283.5	858.5	1	1276.5	858.5	0	0	0	0	0	0
7	Motsuane ,O (Omphile)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Motsuane ,O (Omphile)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Ngwenya ,R (Reotshepile)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ngwenya ,R (Reotshepile)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Mokone ,R (Remoabetswe Kgotla)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mokone ,R (Remoabetswe Kgotla)	1	1501	1076	1	1482.2	1076	0	0	0	0	0	0
10	Du Plessis ,A (Alois)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Du Plessis ,A (Alois)	1	1130.1	705.1	1	1112.8	705.1	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, J (Josua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms