Chess South Africa Ratings Database

PLAYER PAGE

Personal

Roberts, E (Ethan)

Chess SA id

1920118965

FIDE id

Date of birth

1992-02-24 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1432	1419.3	1300	1300
Raw rating	1432	1419.3	1300	1300
Weighted rating	1404.1	1397.9	1299.7	1299.7
Weighted performance	0	0	0	0
Floor	932	925.7	800	800
K-factor	32	32	36	36
Min/Max rating change allowed	119.2	121.3	143.8	143.8
Highest rating	1513.7 2024-09-01	1499.9 2024-09-01	1300 2024-02-01	1300 2024-02-01
Highest raw rating	1432 2025-11-01	1425.7 2024-10-01	1300 2024-02-01	1300 2024-02-01
Highest weighted rating	1404.1 2025-11-01	1397.9 2025-11-01	1296.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1513.7 2024-09-01	1499.9 2024-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1432	1419.3	1300	1300
Analysis
Rating	1432	1419.3	1300	1300
Raw rating	1432	1419.3	1300	1300
Weighted rating	1404.1	1397.9	1299.7
Weighted performance	0	0	0
K-factor	32	32	36	36
Floor	932	925.7	800	800
Max/Min rating change allowed	119.2	121.3	143.8	143.8
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	1432	1419.3	1300	1300
New weighted rating	1409.1	1402.4	1300	1300
New weighted performance	0	0	0	0
Temp new rating	1432	1419.3	1300	1300
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1432	1419.3	1300	1300
New K-factor	32	32	36	36
New floor	932	925.7	800	800

Item	Main	Standard
	0	0
	4	4
	9	9
	4	4
	4	4
	0	0
History	24	24

Games since
	Main 13	Standard 13		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	4	2.5	62.5	106.2	1346.4	1452.7
Standard	4	2.5	62.5	106.2	1346.4	1452.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	24	17.5	72.92	194.8	1355.6	1550.3
Standard	24	17.5	72.92	194.8	1355.6	1550.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1432	1419.3	1300	1300
2025-09-30	1431	1425.7	1300	1300
2025-09-01	1431	1425.7	1300	1300
2025-08-01	1431	1425.7	1300	1300
2025-07-01	1431	1425.7	1300	1300
2025-06-01	1431	1425.7	1300	1300
2025-05-01	1431	1425.7	1300	1300
2025-04-01	1431	1425.7	1300	1300
2025-03-01	1431	1425.7	1300	1300
2025-02-01	1431	1425.7	1300	1300
2025-01-01	1431	1425.7	1300	1300
2024-12-01	1431	1425.7	1300	1300
2024-11-01	1431	1425.7	1300	1300
2024-10-01	1431	1425.7	1300	1300
2024-09-01	1283.9	1277.1	1300	1300
2024-08-01	1283.9	1277.1	1300	1300
2024-07-01	1283.9	1277.1	1300	1300
2024-09-01	1283.9	1277.1	1300	1300
2024-05-01	1283.9	1277.1	1300	1300
2024-04-01	1283.9	1277.1	1300	1300
2024-03-01	1283.9	1277.1	1300	1300
2024-02-01	1283.9	1277.1	1300	1300
2024-01-01	1283.9	1277.1	1300	1300
2023-12-01	1283.9	1277.1	1200	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	Cape Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	4	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (C)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	4	2.5	Yes	Analysis
2	CT League 2024 (D-Playoffs)	2024-09-07	2024-09-08	Standard	Cape Town (WCT)	5	4	3	Yes	Analysis
3	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	5	5	Yes	Analysis
4	WP Club League 2023 (C)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	4	4	Yes	Analysis
5	2022 Western Province Club League (C)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	4	1	Yes	Analysis
6	2019 Western Province League (D)	2019-07-27	2019-09-07	Standard	Cape Town (WCT)	11	3	2	Yes	Analysis

#	Games	Start				End
1	9	Tournament WP Club League 2023				Tournament CT League 2024
		date 2023-07-29	rnd 2	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 1
		Opponent Siyo, A (Ayabulela)				Opponent Sobada, A (Anelisa)
2	6	Tournament CT League 2024				Tournament Cape Town Chess Federation Club League 2025
		date 2024-09-07	rnd 3	type Standard	result 1	date 2025-09-13	rnd 7	type Standard	result 0.5
		Opponent Arendse, DD (Daniel)				Opponent Kruger, D (Daniel)
3	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Osman, M (Mustaqeem)				Opponent Marinus, T (Taige)

#	Games	Start				End
1	9	Tournament WP Club League 2023				Tournament CT League 2024
		date 2023-07-29	rnd 2	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 1
		Opponent Siyo, A (Ayabulela)				Opponent Sobada, A (Anelisa)
2	3	Tournament CT League 2024				Tournament CT League 2024
		date 2024-09-07	rnd 3	type Standard	result 1	date 2024-09-08	rnd 5	type Standard	result 1
		Opponent Arendse, DD (Daniel)				Opponent Rhode, A (Andre)
3	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Osman, M (Mustaqeem)				Opponent Marinus, T (Taige)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	9	Tournament WP Club League 2023				Tournament CT League 2024
		date 2023-07-29	rnd 2	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 1
		Opponent Siyo, A (Ayabulela)				Opponent Sobada, A (Anelisa)
2	3	Tournament CT League 2024				Tournament CT League 2024
		date 2024-09-07	rnd 3	type Standard	result 1	date 2024-09-08	rnd 5	type Standard	result 1
		Opponent Arendse, DD (Daniel)				Opponent Rhode, A (Andre)
3	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Osman, M (Mustaqeem)				Opponent Marinus, T (Taige)

#	Games	Start				End
1	9	Tournament WP Club League 2023				Tournament CT League 2024
		date 2023-07-29	rnd 2	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 1
		Opponent Siyo, A (Ayabulela)				Opponent Sobada, A (Anelisa)
2	3	Tournament CT League 2024				Tournament CT League 2024
		date 2024-09-07	rnd 3	type Standard	result 1	date 2024-09-08	rnd 5	type Standard	result 1
		Opponent Arendse, DD (Daniel)				Opponent Rhode, A (Andre)
3	2	Tournament 2019 Western Province League				Tournament 2019 Western Province League
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-08-03	rnd 4	type Standard	result 1
		Opponent Osman, M (Mustaqeem)				Opponent Marinus, T (Taige)

No games found.

#	Games	Start				End

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	Michaels ,DJ (Deon Jerome)	2	2	425	2	2	425	0	0	0	0	0	0
1	Michaels ,DJ (Deon Jerome)	2	1764.9	2189.9	2	1765.1	2189.9	0	0	0	0	0	0
2	Van Heerden ,EJ (Ethan Joel)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Van Heerden ,EJ (Ethan Joel)	1	1530	1105	1	1506.7	1105	0	0	0	0	0	0
3	Zenzile ,A (Amahle)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Zenzile ,A (Amahle)	1	1373.3	948.3	1	1319.5	948.3	0	0	0	0	0	0
4	Nyamukondiwa ,M (Marshall)	1	1	425	1	1	425	0	0	0	0	0	0
4	Nyamukondiwa ,M (Marshall)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Arendse ,DD (Daniel Donovan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Arendse ,DD (Daniel Donovan)	1	1644.7	2069.7	1	1642.8	2069.7	0	0	0	0	0	0
6	Calitz ,S (Steyn)	1	1	425	1	1	425	0	0	0	0	0	0
6	Calitz ,S (Steyn)	1	1346.7	1771.7	1	1309.3	1771.7	0	0	0	0	0	0
7	Osman ,M (Mustaqeem)	1	1	425	1	1	425	0	0	0	0	0	0
7	Osman ,M (Mustaqeem)	1	1052.3	1477.3	1	975.8	1477.3	0	0	0	0	0	0
8	Pietersen ,W (Willmore)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Pietersen ,W (Willmore)	1	1420.8	995.8	1	1446.4	995.8	0	0	0	0	0	0
9	Van Zyl ,JM (Johannes Martin)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Zyl ,JM (Johannes Martin)	1	1262.4	1687.4	1	1222.1	1687.4	0	0	0	0	0	0
10	Lose ,L (Luvo)	1	1	425	1	1	425	0	0	0	0	0	0
10	Lose ,L (Luvo)	1	1304.9	1729.9	1	1276.1	1729.9	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

Roberts, E (Ethan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms