Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Merwe, E (Emily)

Chess SA id

2130150705

FIDE id

Date of birth

2013-09-09 (U14)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1287.6	1227.2	1350.4	1200
Raw rating	1285.9	1211.9	1350.4	1200
Weighted rating	1287.6	1227.2	1326.9	1200
Weighted performance	1128	0	0	0
Floor	807.2	731.7	850.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	146.7	163	133.8	165.8
Highest rating	1307.2 2025-03-01	1326 2023-03-01	1350.4 2025-03-01	1200 2018-10-01
Highest raw rating	1307.2 2025-03-01	1231.7 2024-03-01	1350.4 2025-03-01	1200 2024-03-01
Highest weighted rating	1285.5 2025-09-01	1231.7 2025-04-01	1312.7 2025-08-01	1200 2018-10-01
Highest weighted performance	1246.4 2024-02-01	1326 2023-03-01	1345.3 2024-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.7	-1.4	0	0
New rating	1288.4	1225.8	1350.4	1200
Analysis
Rating	1287.6	1227.2	1350.4	1200
Raw rating	1285.9	1211.9	1350.4	1200
Weighted rating	1287.6	1227.2	1326.9
Weighted performance	1128	0	0
K-factor	36	36	36	36
Floor	807.2	731.7	850.4	700
Max/Min rating change allowed	146.7	163	133.8	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	1285.9	1211.9	1350.4	1200
New weighted rating	1288.4	1225.8	1330.6	1200
New weighted performance	1120.3	0	0	0
Temp new rating	1288.4	1225.8	1350.4	1200
Temp new rating +/-	0.7	-1.4	0	0
Final new rating +/-	0.7	-1.4	0	0
New rating	1288.4	1225.8	1350.4	1200
New K-factor	36	36	36	36
New floor	807.2	731.7	850.4	700

Item	Main	Standard	Rapid
	0	0	0
	10	4	6
	5	0	5
	21	11	10
	0	0	0
	0	0	0
History	36	15	21

Games since
	Main 15	Standard 4		Rapid 11		Blitz 0
Gender	Female
Age group	U14
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-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	10	6	60	85	1274.3	1359.3
Standard	4	1	25	-212.5	1368.4	1155.9
Rapid	6	5	83.33	283.3	1211.5	1494.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	36	21.5	59.72	82.6	1238.6	1321.2
Standard	15	7	46.67	-28.3	1268.5	1240.2
Rapid	21	14.5	69.05	161.9	1217.2	1379.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1285.9	1211.9	1350.4	1200
2025-09-30	1285.9	1211.9	1350.4	1200
2025-09-01	1285.9	1211.9	1350.4	1200
2025-08-01	1307.2	1231.7	1350.4	1200
2025-07-01	1307.2	1231.7	1350.4	1200
2025-06-01	1307.2	1231.7	1350.4	1200
2025-05-01	1307.2	1231.7	1350.4	1200
2025-04-01	1307.2	1231.7	1350.4	1200
2025-03-01	1307.2	1231.7	1350.4	1200
2025-02-01	1273.1	1231.7	1296.8	1200
2025-01-01	1273.1	1231.7	1296.8	1200
2024-12-01	1273.1	1231.7	1296.8	1200
2024-11-01	1273.1	1231.7	1296.8	1200
2024-10-01	1273.1	1231.7	1296.8	1200
2024-09-01	1273.1	1231.7	1296.8	1200
2024-08-01	1273.1	1231.7	1296.8	1200
2024-07-01	1273.1	1231.7	1296.8	1200
2024-09-01	1273.1	1231.7	1296.8	1200
2024-05-01	1273.1	1231.7	1296.8	1200
2024-04-01	1273.1	1231.7	1296.8	1200
2024-03-01	1273.1	1231.7	1296.8	1200
2024-02-01	1221	1231.7	1195.2	1200
2024-01-01	1221	1231.7	1195.2	1200
2023-12-01	1221	1231.7	1195.2	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Top Schools 2025 (U9-U13 Girls)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
2	Overberg Schools - PS Trials (Region 2) 2025 (U13)	2025-02-15	2025-02-15	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Top Schools 2025 (U9-U13 Girls)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
2	Overberg Schools - PS Trials (Region 2) 2025 (U13)	2025-02-15	2025-02-15	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
3	Overberg Swellendam Primary Schools Zone Trails Region 2 2024 (U9+U11)	2024-02-10	2024-02-10	Rapid	Overberg (WOS)	5	5	5	Yes	Analysis
4	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	Hermanus Rapid 2023 (C)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
6	Overberg Schools Swellendam Zone Trails 2023 (U13)	2023-02-16	2023-03-02	Rapid	Overberg (WOS)	5	4	1.5	Yes	Analysis
7	Overberg School Chess Closed Tournament 2023 (U11 Girls)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Western Cape PS Individuals 2023				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2023-05-06	rnd 6	type Standard	result 1	date 2025-02-15	rnd 3	type Rapid	result 1
		Opponent Douglas, K (Keyla)				Opponent Slingers, B (Brendon)
2	4	Tournament Overberg Schools Swellendam Zone Trails 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-02	rnd 4	type Rapid	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Jooste, L (Luca)				Opponent Collins, E (Esme)
3	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 4	type Rapid	result 1
		Opponent Joubert, S (Sumari)				Opponent Loubser, E (Erick)

#	Games	Start				End
1	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Baatjies, M (Mya)				Opponent Collins, E (Esme)
2	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Tshota, E (Enkosi)				Opponent Tshota, E (Enkosi)
3	1	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-06	rnd 6	type Standard	result 1	date 2023-05-06	rnd 6	type Standard	result 1
		Opponent Douglas, K (Keyla)				Opponent Douglas, K (Keyla)

#	Games	Start				End
1	8	Tournament Overberg Swellendam Primary Schools Zone Trails Region 2 2024				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2025-02-15	rnd 3	type Rapid	result 1
		Opponent Heyneman, L (Lian�)				Opponent Slingers, B (Brendon)
2	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 4	type Rapid	result 1
		Opponent Joubert, S (Sumari)				Opponent Loubser, E (Erick)
3	2	Tournament Overberg Schools - PS Trials (Region 2) 2025				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2025-02-15	rnd 5	type Rapid	result 1	date 2025-02-15	rnd 6	type Rapid	result 1
		Opponent Sebyboe, J (Jo-Heiden)				Opponent Ellis, H (Hanru)

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament Western Cape PS Individuals 2023				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2023-05-06	rnd 6	type Standard	result 1	date 2025-02-15	rnd 3	type Rapid	result 1
		Opponent Douglas, K (Keyla)				Opponent Slingers, B (Brendon)
2	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 4	type Rapid	result 1
		Opponent Joubert, S (Sumari)				Opponent Loubser, E (Erick)
3	2	Tournament Overberg Schools - PS Trials (Region 2) 2025				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2025-02-15	rnd 5	type Rapid	result 1	date 2025-02-15	rnd 6	type Rapid	result 1
		Opponent Sebyboe, J (Jo-Heiden)				Opponent Ellis, H (Hanru)

#	Games	Start				End
1	2	Tournament Overberg School Chess Closed Tournament 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-03-25	rnd 1	type Standard	result 1	date 2023-03-25	rnd 2	type Standard	result 1
		Opponent Baatjies, M (Mya)				Opponent Collins, E (Esme)
2	1	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Tshota, E (Enkosi)				Opponent Tshota, E (Enkosi)
3	1	Tournament Western Cape PS Individuals 2023				Tournament Western Cape PS Individuals 2023
		date 2023-05-06	rnd 6	type Standard	result 1	date 2023-05-06	rnd 6	type Standard	result 1
		Opponent Douglas, K (Keyla)				Opponent Douglas, K (Keyla)

#	Games	Start				End
1	8	Tournament Overberg Swellendam Primary Schools Zone Trails Region 2 2024				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2024-02-10	rnd 1	type Rapid	result 1	date 2025-02-15	rnd 3	type Rapid	result 1
		Opponent Heyneman, L (Lian�)				Opponent Slingers, B (Brendon)
2	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 2	type Rapid	result 1	date 2023-04-22	rnd 4	type Rapid	result 1
		Opponent Joubert, S (Sumari)				Opponent Loubser, E (Erick)
3	2	Tournament Overberg Schools - PS Trials (Region 2) 2025				Tournament Overberg Schools - PS Trials (Region 2) 2025
		date 2025-02-15	rnd 5	type Rapid	result 1	date 2025-02-15	rnd 6	type Rapid	result 1
		Opponent Sebyboe, J (Jo-Heiden)				Opponent Ellis, H (Hanru)

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	Buhr ,G (Gretchen)	2	2	425	2	2	425	0	0	0	0	0	0
1	Buhr ,G (Gretchen)	2	1158.2	1583.2	2	1163.1	1583.2	0	0	0	0	0	0
2	Du Preez ,A (Alet)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Du Preez ,A (Alet)	2	1234.7	809.7	2	1231.5	809.7	0	0	0	0	0	0
3	Ntontelo ,K (Khazimla)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Ntontelo ,K (Khazimla)	2	1472	1047	2	1489.4	1047	0	0	0	0	0	0
4	Collins ,E (Esme)	1	1	425	1	1	425	0	0	0	0	0	0
4	Collins ,E (Esme)	1	1176.5	1601.5	1	1163.7	1601.5	0	0	0	0	0	0
5	Jainoodien ,M (Micaela)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Jainoodien ,M (Micaela)	1	1183.4	758.4	1	1182.4	758.4	0	0	0	0	0	0
6	Van Der Westhuizen ,L (Linli)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Van Der Westhuizen ,L (Linli)	1	1188	763	1	1183.2	763	0	0	0	0	0	0
7	Douglas ,K (Keyla)	1	1	425	1	1	425	0	0	0	0	0	0
7	Douglas ,K (Keyla)	1	1281.8	1706.8	1	1292.4	1706.8	0	0	0	0	0	0
8	Indhul ,N (Nikita)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Indhul ,N (Nikita)	1	1238.1	813.1	1	1210.1	813.1	0	0	0	0	0	0
9	Lotz ,R (Renaldo)	1	1	425	0	0	0	1	1	425	0	0	0
9	Lotz ,R (Renaldo)	1	1192.8	1617.8	0	0	0	1	1178.4	1617.8	0	0	0
10	Heyneman ,L (Lian�)	1	1	425	0	0	0	1	1	425	0	0	0
10	Heyneman ,L (Lian�)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Der Merwe, E (Emily)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms