Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, E (Ethan)

Chess SA id

111092813

FIDE id

Date of birth

2011-09-17 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1192.2	1158	1233.6	1200
Raw rating	1192.2	1158	1233.6	1200
Weighted rating	1192.2	1158	1233.6	1200
Weighted performance	463.9	264.7	0	0
Floor	836.7	828	733.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	167.7	176	158.1	165.8
Highest rating	1351.1 2018-10-01	1342.3 2018-10-01	1337.9 2023-03-01	1200 2018-10-01
Highest raw rating	1336.7 2018-11-01	1328 2018-11-01	1233.6 2024-02-01	1200 2024-02-01
Highest weighted rating	1336.7 2019-02-01	1328 2019-01-01	1233.6 2025-02-01	1200 2018-10-01
Highest weighted performance	1351.1 2018-10-01	1342.3 2018-10-01	1337.9 2023-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1192.2	1158	1233.6	1200
Analysis
Rating	1192.2	1158	1233.6	1200
Raw rating	1192.2	1158	1233.6	1200
Weighted rating	1192.2	1158	1233.6
Weighted performance	463.9	264.7	0
K-factor	36	36	36	36
Floor	836.7	828	733.6	700
Max/Min rating change allowed	167.7	176	158.1	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	1192.2	1158	1233.6	1200
New weighted rating	1192.2	1158	1233.6	1200
New weighted performance	457	258.2	0	0
Temp new rating	1192.2	1158	1233.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1192.2	1158	1233.6	1200
New K-factor	36	36	36	36
New floor	836.7	828	733.6	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	5	0	5
	0	0	0
	0	0	0
History	148	143	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
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	131	67.5	51.53	13	1157.2	1170.2
Standard	126	64.5	51.19	10.1	1153.8	1163.9
Rapid	5	3	60	85	1245.2	1330.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1192.2	1158	1233.6	1200
2025-09-30	1192.2	1158	1233.6	1200
2025-09-01	1192.2	1158	1233.6	1200
2025-08-01	1192.2	1158	1233.6	1200
2025-07-01	1192.2	1158	1233.6	1200
2025-06-01	1192.2	1158	1233.6	1200
2025-05-01	1192.2	1158	1233.6	1200
2025-04-01	1192.2	1158	1233.6	1200
2025-03-01	1192.2	1158	1233.6	1200
2025-02-01	1192.2	1158	1233.6	1200
2025-01-01	1192.2	1158	1233.6	1200
2024-12-01	1192.2	1158	1233.6	1200
2024-11-01	1192.2	1158	1233.6	1200
2024-10-01	1192.2	1158	1233.6	1200
2024-09-01	1192.2	1158	1233.6	1200
2024-08-01	1192.2	1158	1233.6	1200
2024-07-01	1192.2	1158	1233.6	1200
2024-09-01	1192.2	1158	1233.6	1200
2024-05-01	1192.2	1158	1233.6	1200
2024-04-01	1192.2	1158	1233.6	1200
2024-03-01	1192.2	1158	1233.6	1200
2024-02-01	1192.2	1158	1233.6	1200
2024-01-01	1192.2	1158	1233.6	1200
2023-12-01	1192.2	1158	1233.6	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	Courtrai Midas Rapid 2023 (U12)	2023-03-04	2023-03-04	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
2	2019 South African Junior Team Championships (U10B)	2020-01-08	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
3	JNW Club - Maragon Open 2019 (D)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
4	JHB Metro Closed 2019 (U10)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
5	Chessnuts Under 1200 Rated Tournament 2019 (Knights)	2019-07-13	2019-07-13	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	Fonties Challange 2019 (U9)	2019-06-08	2019-06-08	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
7	The Metro Open 2019 (Cadets)	2019-05-25	2019-05-25	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
8	2019 Waterkloof Open (C)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	3	0	Yes	Analysis
9	2019 South African Junior Closed Chess Championship (U8 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	3.5	Yes	Analysis
10	2019 Blou Bul (C)	2019-02-16	2019-02-16	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
11	GoForChess - Introduction to chess tournament 2019	2019-02-10	2019-02-10	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
12	Chessnuts Challenge 1 2019 (Kings)	2019-02-02	2019-02-02	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
13	JNW Club - Bryanston Open 1 2019 (U10)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	South African Junior Team Championships 2018 (U8A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
15	Chessnuts November 2018 (A)	2018-11-17	2018-11-17	Standard	Johannesburg Metro (GJM)	5	5	0	Yes	Analysis
16	Inter Region GE vs JHB Metro 2018 (U8)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	4	4	Yes	Analysis
17	Chessnuts Spring 2018 (Knights)	2018-09-29	2018-09-29	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
18	GoForChess Saheti Junior Chess Championships 2018 (U8+U10)	2018-09-22	2018-09-22	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
19	JNW Club - Maragon Open 2018 (U8)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
20	Chessnuts - Under 1000 Ratings Tournament 2018 (B)	2018-07-21	2018-07-21	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
21	JHB Metro Junior Closed 2018 (U8)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
22	Chessnuts Youth Day Chess Tournament 2018 (U8)	2018-06-16	2018-06-16	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
23	Fonties Challenge 2018 (U7)	2018-04-21	2018-04-21	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
24	JCC Wits 2018 (Development)	2018-02-25	2018-02-25	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
25	South African Junior Team Championships 2017 (U8B+U8 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis

#	Games	Start				End
1	6	Tournament Chessnuts Spring 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-09-29	rnd 4	type Standard	result 1	date 2018-10-06	rnd 5	type Standard	result 1
		Opponent Spie, TA (Tina Amanda)				Opponent Bowers, M (Mpho)
2	6	Tournament Fonties Challenge 2018				Tournament Chessnuts Youth Day Chess Tournament 2018
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-06-16	rnd 4	type Standard	result 0.5
		Opponent Meij, A (Ariel)				Opponent Bezuidenhout, D (Dawid)
3	5	Tournament South African Junior Team Championships 2017				Tournament JCC Wits 2018
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Fourie, A (Alex)				Opponent Meyers, N (Noah)

#	Games	Start				End
1	6	Tournament Chessnuts Spring 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-09-29	rnd 4	type Standard	result 1	date 2018-10-06	rnd 5	type Standard	result 1
		Opponent Spie, TA (Tina Amanda)				Opponent Bowers, M (Mpho)
2	6	Tournament Fonties Challenge 2018				Tournament Chessnuts Youth Day Chess Tournament 2018
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-06-16	rnd 4	type Standard	result 0.5
		Opponent Meij, A (Ariel)				Opponent Bezuidenhout, D (Dawid)
3	5	Tournament South African Junior Team Championships 2017				Tournament JCC Wits 2018
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Fourie, A (Alex)				Opponent Meyers, N (Noah)

#	Games	Start				End
1	3	Tournament Courtrai Midas Rapid 2023				Tournament Courtrai Midas Rapid 2023
		date 2023-03-04	rnd 2	type Rapid	result 1	date 2023-03-04	rnd 4	type Rapid	result 1
		Opponent Breed, M (Mattys)				Opponent Roux, A (Adriaan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Chessnuts Spring 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-09-29	rnd 4	type Standard	result 1	date 2018-10-06	rnd 5	type Standard	result 1
		Opponent Spie, TA (Tina Amanda)				Opponent Bowers, M (Mpho)
2	5	Tournament South African Junior Team Championships 2017				Tournament JCC Wits 2018
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Fourie, A (Alex)				Opponent Meyers, N (Noah)
3	4	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-06	rnd 4	type Standard	result 1
		Opponent Marais, JS (Jacobus)				Opponent Sankar, R (Rahil)

#	Games	Start				End
1	6	Tournament Chessnuts Spring 2018				Tournament Inter Region GE vs JHB Metro 2018
		date 2018-09-29	rnd 4	type Standard	result 1	date 2018-10-06	rnd 5	type Standard	result 1
		Opponent Spie, TA (Tina Amanda)				Opponent Bowers, M (Mpho)
2	5	Tournament South African Junior Team Championships 2017				Tournament JCC Wits 2018
		date 2018-01-05	rnd 4	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Fourie, A (Alex)				Opponent Meyers, N (Noah)
3	4	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-06	rnd 4	type Standard	result 1
		Opponent Marais, JS (Jacobus)				Opponent Sankar, R (Rahil)

#	Games	Start				End
1	3	Tournament Courtrai Midas Rapid 2023				Tournament Courtrai Midas Rapid 2023
		date 2023-03-04	rnd 2	type Rapid	result 1	date 2023-03-04	rnd 4	type Rapid	result 1
		Opponent Breed, M (Mattys)				Opponent Roux, A (Adriaan)

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	D`Alton ,E (Ezra)	7	2.5	-121.4	7	2.5	-121.4	0	0	0	0	0	0
1	D`Alton ,E (Ezra)	7	1248.2	1126.7	7	1233.9	1126.7	0	0	0	0	0	0
2	Moonsammy ,E (Ethan)	4	0	-425	4	0	-425	0	0	0	0	0	0
2	Moonsammy ,E (Ethan)	4	1258.4	833.4	4	1250.7	833.4	0	0	0	0	0	0
3	Bezuidenhout ,D (Dawid)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
3	Bezuidenhout ,D (Dawid)	3	1232	948.6	3	1220	948.6	0	0	0	0	0	0
4	Bowers ,M (Mpho)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Bowers ,M (Mpho)	3	1239.1	1380.7	3	1226.7	1380.7	0	0	0	0	0	0
5	Marais ,E (Enzo)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
5	Marais ,E (Enzo)	3	1137	1278.6	3	1118.1	1278.6	0	0	0	0	0	0
6	Yang ,JD (Daniel)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Yang ,JD (Daniel)	2	1356.1	931.1	2	1355.9	931.1	0	0	0	0	0	0
7	Chinoruma ,K (Kupa)	2	2	425	2	2	425	0	0	0	0	0	0
7	Chinoruma ,K (Kupa)	2	1211.8	1636.8	2	1209.7	1636.8	0	0	0	0	0	0
8	Buys ,B (Boaz)	2	2	425	2	2	425	0	0	0	0	0	0
8	Buys ,B (Boaz)	2	1237.8	1662.8	2	1273.6	1662.8	0	0	0	0	0	0
9	Bennie ,T (Thomas)	2	2	425	2	2	425	0	0	0	0	0	0
9	Bennie ,T (Thomas)	2	1242.6	1667.6	2	1240	1667.6	0	0	0	0	0	0
10	Govender ,P (Pranau)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Govender ,P (Pranau)	2	1280.9	855.9	2	1268.6	855.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Der Merwe, E (Ethan)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms