Chess South Africa Ratings Database

PLAYER PAGE

Personal

Grater, R (Robert)

Chess SA id

1890139702

FIDE id

Date of birth

1989-03-19 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1250.1	1207.9	1226.7	1300
Raw rating	1250.1	1207.9	1226.7	1300
Weighted rating	1249.4	1207.7	1226.1	1299
Weighted performance	734.1	0	0	0
Floor	750.1	707.9	726.7	800
K-factor	36	36	36	36
Min/Max rating change allowed	154.4	164	159.6	143.8
Highest rating	1250.1 2024-02-01	1214.7 2022-09-01	1226.7 2024-02-01	1300 2024-02-01
Highest raw rating	1250.1 2024-02-01	1207.9 2024-02-01	1226.7 2024-02-01	1300 2024-02-01
Highest weighted rating	1247.9 2025-08-01	1207.2 2025-08-01	1224.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1200 2020-01-01	1214.7 2022-09-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1250.1	1207.9	1226.7	1300
Analysis
Rating	1250.1	1207.9	1226.7	1300
Raw rating	1250.1	1207.9	1226.7	1300
Weighted rating	1249.4	1207.7	1226.1
Weighted performance	734.1	0	0
K-factor	36	36	36	36
Floor	750.1	707.9	726.7	800
Max/Min rating change allowed	154.4	164	159.6	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	1250.1	1207.9	1226.7	1300
New weighted rating	1249.9	1207.8	1226.5	1299.7
New weighted performance	733.7	0	0	0
Temp new rating	1250.1	1207.9	1226.7	1300
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1250.1	1207.9	1226.7	1300
New K-factor	36	36	36	36
New floor	750.1	707.9	726.7	800

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	5	5	0
	21	8	13
	0	0	0
History	26	13	13

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
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	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	26	10	38.46	-98.1	1266.1	1168
Standard	13	5	38.46	-98.1	1280.9	1182.8
Rapid	13	5	38.46	-98.1	1251.3	1153.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1250.1	1207.9	1226.7	1300
2025-09-01	1250.1	1207.9	1226.7	1300
2025-08-01	1250.1	1207.9	1226.7	1300
2025-07-01	1250.1	1207.9	1226.7	1300
2025-06-01	1250.1	1207.9	1226.7	1300
2025-05-01	1250.1	1207.9	1226.7	1300
2025-04-01	1250.1	1207.9	1226.7	1300
2025-03-01	1250.1	1207.9	1226.7	1300
2025-02-01	1250.1	1207.9	1226.7	1300
2025-01-01	1250.1	1207.9	1226.7	1300
2024-12-01	1250.1	1207.9	1226.7	1300
2024-11-01	1250.1	1207.9	1226.7	1300
2024-10-01	1250.1	1207.9	1226.7	1300
2024-09-01	1250.1	1207.9	1226.7	1300
2024-08-01	1250.1	1207.9	1226.7	1300
2024-07-01	1250.1	1207.9	1226.7	1300
2024-06-01	1250.1	1207.9	1226.7	1300
2024-08-01	1250.1	1207.9	1226.7	1300
2024-04-01	1250.1	1207.9	1226.7	1300
2024-03-01	1250.1	1207.9	1226.7	1300
2024-02-01	1250.1	1207.9	1226.7	1300
2024-01-01	1250.1	1207.9	1226.7	1300
2023-12-01	1184.7	1187.6	1166.4	1200
2023-11-01	1184.7	1187.6	1166.4	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	Strategema 2023 (Open)	2023-05-13	2023-05-13	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
2	Robertson Strategema Club 2022 (Open)	2022-10-29	2022-10-29	Standard	Cape Winelands (WCW)	5	4	1	Yes	Analysis
3	Strategema 2022 (Open)	2022-09-10	2022-09-10	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
4	Strategema Chess Festival 2022 (Open)	2022-05-14	2022-05-14	Rapid	Cape Winelands (WCW)	3	3	2	Yes	Analysis
5	McGregor Chess Freedom Day Rapid 2022 (Open+Parents)	2022-04-27	2022-04-27	Rapid	Cape Winelands (WCW)	5	5	0.5	Yes	Analysis
6	McGregor Kings Chess Festival 2022 (Open)	2022-04-09	2022-04-09	Rapid	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Swarts, K (Kuhwin)
2	2	Tournament Strategema 2022				Tournament Strategema 2022
		date 2022-09-10	rnd 4	type Standard	result 1	date 2022-09-10	rnd 5	type Standard	result 1
		Opponent Barends, S (Stuart)				Opponent Adams, B (Breyton)
3	2	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Kings Chess Festival 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-04-09	rnd 4	type Rapid	result 1
		Opponent De Vos, JNW (Joaniel Nigel Warren)				Opponent Mitchell, R (Raynard)

#	Games	Start				End
1	2	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Swarts, K (Kuhwin)
2	2	Tournament Strategema 2022				Tournament Strategema 2022
		date 2022-09-10	rnd 4	type Standard	result 1	date 2022-09-10	rnd 5	type Standard	result 1
		Opponent Barends, S (Stuart)				Opponent Adams, B (Breyton)
3	1	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 2	type Standard	result 1
		Opponent Van Niekerk, J (Johan)				Opponent Van Niekerk, J (Johan)

#	Games	Start				End
1	2	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Kings Chess Festival 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-04-09	rnd 4	type Rapid	result 1
		Opponent De Vos, JNW (Joaniel Nigel Warren)				Opponent Mitchell, R (Raynard)
2	1	Tournament Strategema Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 3	type Rapid	result 1
		Opponent Lundt, C (Clinton)				Opponent Lundt, C (Clinton)
3	1	Tournament Strategema Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-05-14	rnd 1	type Rapid	result 1	date 2022-05-14	rnd 1	type Rapid	result 1
		Opponent Oerson, E (Ej)				Opponent Oerson, E (Ej)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Swarts, K (Kuhwin)
2	2	Tournament Strategema 2022				Tournament Strategema 2022
		date 2022-09-10	rnd 4	type Standard	result 1	date 2022-09-10	rnd 5	type Standard	result 1
		Opponent Barends, S (Stuart)				Opponent Adams, B (Breyton)
3	2	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Kings Chess Festival 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-04-09	rnd 4	type Rapid	result 1
		Opponent De Vos, JNW (Joaniel Nigel Warren)				Opponent Mitchell, R (Raynard)

#	Games	Start				End
1	2	Tournament Strategema 2023				Tournament Strategema 2023
		date 2023-05-13	rnd 1	type Standard	result 1	date 2023-05-13	rnd 2	type Standard	result 1
		Opponent Geldenhuis, C (Chine)				Opponent Swarts, K (Kuhwin)
2	2	Tournament Strategema 2022				Tournament Strategema 2022
		date 2022-09-10	rnd 4	type Standard	result 1	date 2022-09-10	rnd 5	type Standard	result 1
		Opponent Barends, S (Stuart)				Opponent Adams, B (Breyton)
3	1	Tournament Robertson Strategema Club 2022				Tournament Robertson Strategema Club 2022
		date 2022-10-29	rnd 2	type Standard	result 1	date 2022-10-29	rnd 2	type Standard	result 1
		Opponent Van Niekerk, J (Johan)				Opponent Van Niekerk, J (Johan)

#	Games	Start				End
1	2	Tournament McGregor Kings Chess Festival 2022				Tournament McGregor Kings Chess Festival 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-04-09	rnd 4	type Rapid	result 1
		Opponent De Vos, JNW (Joaniel Nigel Warren)				Opponent Mitchell, R (Raynard)
2	1	Tournament Strategema Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-05-14	rnd 3	type Rapid	result 1	date 2022-05-14	rnd 3	type Rapid	result 1
		Opponent Lundt, C (Clinton)				Opponent Lundt, C (Clinton)
3	1	Tournament Strategema Chess Festival 2022				Tournament Strategema Chess Festival 2022
		date 2022-05-14	rnd 1	type Rapid	result 1	date 2022-05-14	rnd 1	type Rapid	result 1
		Opponent Oerson, E (Ej)				Opponent Oerson, E (Ej)

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	Thompson ,W (William)	3	0	-425	1	0	-425	2	0	-425	0	0	0
1	Thompson ,W (William)	3	1267.5	842.5	1	1236.8	842.5	2	1254.9	842.5	0	0	0
2	Oerson ,E (Ej)	2	1	0	1	0	-425	1	1	425	0	0	0
2	Oerson ,E (Ej)	2	1115.8	1115.8	1	1193.2	690.8	1	1016	1540.8	0	0	0
3	Swanepoel ,A (Aschwin)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
3	Swanepoel ,A (Aschwin)	2	1101.1	888.6	0	0	0	2	1102.4	888.6	0	0	0
4	Maree ,B (Brevin)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Maree ,B (Brevin)	1	1450.9	1025.9	1	1416.1	1025.9	0	0	0	0	0	0
5	Geldenhuis ,C (Chine)	1	1	425	1	1	425	0	0	0	0	0	0
5	Geldenhuis ,C (Chine)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Barends ,S (Stuart)	1	1	425	1	1	425	0	0	0	0	0	0
6	Barends ,S (Stuart)	1	1211.6	1636.6	1	1207.2	1636.6	0	0	0	0	0	0
7	Davel ,M (Marchand)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Davel ,M (Marchand)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Isaacs ,WS (William Samuel)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Isaacs ,WS (William Samuel)	1	1366.4	941.4	1	1385.2	941.4	0	0	0	0	0	0
9	Adams ,B (Breyton)	1	1	425	1	1	425	0	0	0	0	0	0
9	Adams ,B (Breyton)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Van Niekerk ,J (Johan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Van Niekerk ,J (Johan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Grater, R (Robert)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms