Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, J (Jan Hendrik)

Chess SA id

1070116659

FIDE id

Date of birth

2007-05-18 (U20)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-03-15

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1150.6	1149.6	1181.6	1200
Raw rating	1150.6	1149.6	1181.6	1200
Weighted rating	1150.6	1149.6	1181.6	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	177.9	178.2	170.2	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1150.6	1149.6	1181.6	1200
Analysis
Rating	1150.6	1149.6	1181.6	1200
Raw rating	1150.6	1149.6	1181.6	1200
Weighted rating	1150.6	1149.6	1181.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	177.9	178.2	170.2	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	1150.6	1149.6	1181.6	1200
New weighted rating	1150.6	1149.6	1181.6	1200
New weighted performance	0	0	0	0
Temp new rating	1150.6	1149.6	1181.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1150.6	1149.6	1181.6	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
	0	0	0
	0	0	0
History	14	9	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Overberg (WOS)
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	14	5.5	39.29	-91.1	1171.3	1080.2
Standard	9	3.5	38.89	-94.4	1171.9	1077.4
Rapid	5	2	40	-85	1170.3	1085.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1150.6	1149.6	1181.6	1200
2025-09-01	1150.6	1149.6	1181.6	1200
2025-08-01	1150.6	1149.6	1181.6	1200
2025-07-01	1150.6	1149.6	1181.6	1200
2025-06-01	1150.6	1149.6	1181.6	1200
2025-05-01	1150.6	1149.6	1181.6	1200
2025-04-01	1150.6	1149.6	1181.6	1200
2025-03-01	1150.6	1149.6	1181.6	1200
2025-02-01	1150.6	1149.6	1181.6	1200
2025-01-01	1150.6	1149.6	1181.6	1200
2024-12-01	1150.6	1149.6	1181.6	1200
2024-11-01	1150.6	1149.6	1181.6	1200
2024-10-01	1150.6	1149.6	1181.6	1200
2024-09-01	1150.6	1149.6	1181.6	1200
2024-08-01	1150.6	1149.6	1181.6	1200
2024-07-01	1150.6	1149.6	1181.6	1200
2024-06-01	1150.6	1149.6	1181.6	1200
2024-08-01	1150.6	1149.6	1181.6	1200
2024-04-01	1150.6	1149.6	1181.6	1200
2024-03-01	1150.6	1149.6	1181.6	1200
2024-02-01	1150.6	1149.6	1181.6	1200
2024-01-01	1150.6	1149.6	1181.6	1200
2023-12-01	1150.6	1149.6	1181.6	1200
2023-11-01	1150.6	1149.6	1181.6	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	Overberg Closed 2020 (U13 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	1.5	Yes	Analysis
2	OCF Open 2020 (U14)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
3	Overberg Top Schools 2019 (U13)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	5	4	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Overberg Closed 2020				Tournament Overberg Closed 2020
		date 2020-03-15	rnd 2	type Standard	result 1	date 2020-03-15	rnd 3	type Standard	result 0.5
		Opponent Papers, W (Whitheron)				Opponent Mayezana, A (Amila)
2	2	Tournament OCF Open 2020				Tournament OCF Open 2020
		date 2020-01-25	rnd 2	type Rapid	result 1	date 2020-01-25	rnd 3	type Rapid	result 1
		Opponent Uys, J (Janke)				Opponent Mushengora, T (Tadiwanashe)
3	2	Tournament Overberg Top Schools 2019				Tournament Overberg Top Schools 2019
		date 2019-07-20	rnd 2	type Standard	result 1	date 2019-07-20	rnd 3	type Standard	result 1
		Opponent De Lange, J (Juandre)				Opponent Goliath, E (Estelle)

#	Games	Start				End
1	2	Tournament Overberg Closed 2020				Tournament Overberg Closed 2020
		date 2020-03-15	rnd 2	type Standard	result 1	date 2020-03-15	rnd 3	type Standard	result 0.5
		Opponent Papers, W (Whitheron)				Opponent Mayezana, A (Amila)
2	2	Tournament Overberg Top Schools 2019				Tournament Overberg Top Schools 2019
		date 2019-07-20	rnd 2	type Standard	result 1	date 2019-07-20	rnd 3	type Standard	result 1
		Opponent De Lange, J (Juandre)				Opponent Goliath, E (Estelle)

#	Games	Start				End
1	2	Tournament OCF Open 2020				Tournament OCF Open 2020
		date 2020-01-25	rnd 2	type Rapid	result 1	date 2020-01-25	rnd 3	type Rapid	result 1
		Opponent Uys, J (Janke)				Opponent Mushengora, T (Tadiwanashe)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament OCF Open 2020				Tournament OCF Open 2020
		date 2020-01-25	rnd 2	type Rapid	result 1	date 2020-01-25	rnd 3	type Rapid	result 1
		Opponent Uys, J (Janke)				Opponent Mushengora, T (Tadiwanashe)
2	2	Tournament Overberg Top Schools 2019				Tournament Overberg Top Schools 2019
		date 2019-07-20	rnd 2	type Standard	result 1	date 2019-07-20	rnd 3	type Standard	result 1
		Opponent De Lange, J (Juandre)				Opponent Goliath, E (Estelle)
3	1	Tournament Overberg Closed 2020				Tournament Overberg Closed 2020
		date 2020-03-15	rnd 2	type Standard	result 1	date 2020-03-15	rnd 2	type Standard	result 1
		Opponent Papers, W (Whitheron)				Opponent Papers, W (Whitheron)

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2019				Tournament Overberg Top Schools 2019
		date 2019-07-20	rnd 2	type Standard	result 1	date 2019-07-20	rnd 3	type Standard	result 1
		Opponent De Lange, J (Juandre)				Opponent Goliath, E (Estelle)
2	1	Tournament Overberg Closed 2020				Tournament Overberg Closed 2020
		date 2020-03-15	rnd 2	type Standard	result 1	date 2020-03-15	rnd 2	type Standard	result 1
		Opponent Papers, W (Whitheron)				Opponent Papers, W (Whitheron)

#	Games	Start				End
1	2	Tournament OCF Open 2020				Tournament OCF Open 2020
		date 2020-01-25	rnd 2	type Rapid	result 1	date 2020-01-25	rnd 3	type Rapid	result 1
		Opponent Uys, J (Janke)				Opponent Mushengora, T (Tadiwanashe)

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	Braaf ,T (Tyrique)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Braaf ,T (Tyrique)	1	1153.9	728.9	1	1143.6	728.9	0	0	0	0	0	0
2	De Lange ,J (Juandre)	1	1	425	1	1	425	0	0	0	0	0	0
2	De Lange ,J (Juandre)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Mayezana ,A (Amila)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
3	Mayezana ,A (Amila)	1	1161.5	1161.5	1	1158.4	1161.5	0	0	0	0	0	0
4	Jayiya ,L (Lihle)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Jayiya ,L (Lihle)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Thompson ,D (Duwayne)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Thompson ,D (Duwayne)	1	1124.3	699.3	1	1092.4	699.3	0	0	0	0	0	0
6	Stander ,Z (Zadrian)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Stander ,Z (Zadrian)	1	1175.8	750.8	1	1189.4	750.8	0	0	0	0	0	0
7	Fortuin ,R (Rewaldo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Fortuin ,R (Rewaldo)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Papers ,W (Whitheron)	1	1	425	1	1	425	0	0	0	0	0	0
8	Papers ,W (Whitheron)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Goliath ,E (Estelle)	1	1	425	1	1	425	0	0	0	0	0	0
9	Goliath ,E (Estelle)	1	1130.9	1555.9	1	1116	1555.9	0	0	0	0	0	0
10	Uys ,J (Janke)	1	1	425	0	0	0	1	1	425	0	0	0
10	Uys ,J (Janke)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Van Der Merwe, J (Jan Hendrik)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms