Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, J (Juan)

Chess SA id

1100106522

FIDE id

Date of birth

2010-12-20 (U18)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-09-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1043.3	1052.4	1101.6	1200
Raw rating	1043.3	1052.4	1101.6	1200
Weighted rating	1043.3	1052.4	1101.6	1200
Weighted performance	487.8	486.2	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	207.3	204.6	190.8	165.8
Highest rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1043.3	1052.4	1101.6	1200
Analysis
Rating	1043.3	1052.4	1101.6	1200
Raw rating	1043.3	1052.4	1101.6	1200
Weighted rating	1043.3	1052.4	1101.6
Weighted performance	487.8	486.2	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	207.3	204.6	190.8	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	1043.3	1052.4	1101.6	1200
New weighted rating	1043.3	1052.4	1101.6	1200
New weighted performance	481	479.4	0	0
Temp new rating	1043.3	1052.4	1101.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1043.3	1052.4	1101.6	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	10	10	0
	0	0	0
History	56	50	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	56	17	30.36	-167	1144.6	977.6
Standard	50	16	32	-153	1151.4	998.4
Rapid	6	1	16.67	-283.3	1087.2	803.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1043.3	1052.4	1101.6	1200
2025-11-30	1043.3	1052.4	1101.6	1200
2025-11-01	1043.3	1052.4	1101.6	1200
2025-09-30	1043.3	1052.4	1101.6	1200
2025-09-01	1043.3	1052.4	1101.6	1200
2025-08-01	1043.3	1052.4	1101.6	1200
2025-07-01	1043.3	1052.4	1101.6	1200
2025-06-01	1043.3	1052.4	1101.6	1200
2025-05-01	1043.3	1052.4	1101.6	1200
2025-04-01	1043.3	1052.4	1101.6	1200
2025-03-01	1043.3	1052.4	1101.6	1200
2025-02-01	1043.3	1052.4	1101.6	1200
2025-01-01	1043.3	1052.4	1101.6	1200
2024-12-01	1043.3	1052.4	1101.6	1200
2024-11-01	1043.3	1052.4	1101.6	1200
2024-10-01	1043.3	1052.4	1101.6	1200
2024-09-01	1043.3	1052.4	1101.6	1200
2024-11-01	1043.3	1052.4	1101.6	1200
2024-07-01	1043.3	1052.4	1101.6	1200
2024-06-01	1043.3	1052.4	1101.6	1200
2024-05-01	1043.3	1052.4	1101.6	1200
2024-04-01	1043.3	1052.4	1101.6	1200
2024-03-01	1043.3	1052.4	1101.6	1200
2024-02-01	1043.3	1052.4	1101.6	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	Ekurhuleni Chess Springs Club Open 2022 (E)	2022-09-03	2022-09-03	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
2	Ekurhuleni Trials 2 2022 (U14)	2022-05-28	2022-05-28	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
3	2019 South African Junior Team Championships (U10D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	1	Yes	Analysis
4	GJM vs GE Inter Region 2019 (U10B)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
5	Ekurhuleni Grand Prix 2019 (D)	2019-09-14	2019-09-14	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
6	Springs Open 2019 (D)	2019-08-31	2019-08-31	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	Ekurhuleni Trials (3)	2019-06-08	2019-06-08	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	Primrose Chess Club Open 2019 (D)	2019-04-13	2019-04-13	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
9	Ekurhuleni Trials 2 2019 (U10)	2019-04-27	2019-04-27	Standard	Ekurhuleni (GE)	5	4	0.5	Yes	Analysis
10	Springs Chess Club Open 2019 (D)	2019-02-09	2019-02-09	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
11	Springs Chess Club Rapid 2018	2018-09-22	2018-09-22	Rapid	Ekurhuleni (GE)	6	6	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament Springs Open 2019				Tournament Springs Open 2019
		date 2019-08-31	rnd 2	type Standard	result 0.5	date 2019-08-31	rnd 5	type Standard	result 0.5
		Opponent Gouws, L (Liam)				Opponent Rothmann, W (Waldo)
2	2	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament Ekurhuleni Chess Springs Club Open 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Adriaan, K (Kale)				Opponent Shkosana, N (Nhlakanipho)
3	2	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Trials
		date 2019-06-08	rnd 3	type Standard	result 1	date 2019-06-08	rnd 4	type Standard	result 1
		Opponent Gape, T (Tshireletso)				Opponent Emechebe, C (Chiamaka)

#	Games	Start				End
1	4	Tournament Springs Open 2019				Tournament Springs Open 2019
		date 2019-08-31	rnd 2	type Standard	result 0.5	date 2019-08-31	rnd 5	type Standard	result 0.5
		Opponent Gouws, L (Liam)				Opponent Rothmann, W (Waldo)
2	2	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament Ekurhuleni Chess Springs Club Open 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Adriaan, K (Kale)				Opponent Shkosana, N (Nhlakanipho)
3	2	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Trials
		date 2019-06-08	rnd 3	type Standard	result 1	date 2019-06-08	rnd 4	type Standard	result 1
		Opponent Gape, T (Tshireletso)				Opponent Emechebe, C (Chiamaka)

#	Games	Start				End
1	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 2	type Rapid	result 1	date 2018-09-22	rnd 2	type Rapid	result 1
		Opponent Mira, N (Njabulo)				Opponent Mira, N (Njabulo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament Ekurhuleni Chess Springs Club Open 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Adriaan, K (Kale)				Opponent Shkosana, N (Nhlakanipho)
2	2	Tournament Springs Open 2019				Tournament Springs Open 2019
		date 2019-08-31	rnd 3	type Standard	result 1	date 2019-08-31	rnd 4	type Standard	result 1
		Opponent Rakganya, K (Kgotso)				Opponent Seanego, B (Boikano)
3	2	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Trials
		date 2019-06-08	rnd 3	type Standard	result 1	date 2019-06-08	rnd 4	type Standard	result 1
		Opponent Gape, T (Tshireletso)				Opponent Emechebe, C (Chiamaka)

#	Games	Start				End
1	2	Tournament Ekurhuleni Chess Springs Club Open 2022				Tournament Ekurhuleni Chess Springs Club Open 2022
		date 2022-09-03	rnd 2	type Standard	result 1	date 2022-09-03	rnd 3	type Standard	result 1
		Opponent Adriaan, K (Kale)				Opponent Shkosana, N (Nhlakanipho)
2	2	Tournament Springs Open 2019				Tournament Springs Open 2019
		date 2019-08-31	rnd 3	type Standard	result 1	date 2019-08-31	rnd 4	type Standard	result 1
		Opponent Rakganya, K (Kgotso)				Opponent Seanego, B (Boikano)
3	2	Tournament Ekurhuleni Trials				Tournament Ekurhuleni Trials
		date 2019-06-08	rnd 3	type Standard	result 1	date 2019-06-08	rnd 4	type Standard	result 1
		Opponent Gape, T (Tshireletso)				Opponent Emechebe, C (Chiamaka)

#	Games	Start				End
1	1	Tournament Springs Chess Club Rapid 2018				Tournament Springs Chess Club Rapid 2018
		date 2018-09-22	rnd 2	type Rapid	result 1	date 2018-09-22	rnd 2	type Rapid	result 1
		Opponent Mira, N (Njabulo)				Opponent Mira, N (Njabulo)

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	Bothma ,J (Jaculene)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Bothma ,J (Jaculene)	3	978.7	553.7	3	980	553.7	0	0	0	0	0	0
2	Govender ,K (Kaylin)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Govender ,K (Kaylin)	2	1213.3	788.3	2	1203.9	788.3	0	0	0	0	0	0
3	Nickols ,C (Christi)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Nickols ,C (Christi)	2	1081.8	656.8	2	1075.5	656.8	0	0	0	0	0	0
4	Kleijnhans ,J (Josua)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Kleijnhans ,J (Josua)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Masiane ,K (Kabo)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Masiane ,K (Kabo)	1	1198.6	773.6	1	1184.5	773.6	0	0	0	0	0	0
6	Viljoen ,L (Lienka)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Viljoen ,L (Lienka)	1	1169.2	744.2	1	1160.8	744.2	0	0	0	0	0	0
7	Tang ,K (Kevin)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Tang ,K (Kevin)	1	1189.4	764.4	1	1183.6	764.4	0	0	0	0	0	0
8	Ramoroka ,T (Tlou)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ramoroka ,T (Tlou)	1	1165.5	740.5	1	1157.2	740.5	0	0	0	0	0	0
9	Thulo ,T (Tshepang)	1	1	425	1	1	425	0	0	0	0	0	0
9	Thulo ,T (Tshepang)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Stoltz ,B (Bradley)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Stoltz ,B (Bradley)	1	1200	775	1	1200	775	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 Merwe, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms