Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Graaff, R (Ruben)

Chess SA id

1120117573

FIDE id

Date of birth

2012-04-23 (U14)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-01-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1176.8	1169.8	1200	1200
Raw rating	1176.8	1169.8	1200	1200
Weighted rating	1176.8	1169.8	1200	1200
Weighted performance	0	0	0	0
Floor	747.5	757.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	171.4	173.1	165.8	165.8
Highest rating	1406.7 2018-05-01	1406.7 2018-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1247.5 2018-06-01	1257.2 2018-06-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1247.5 2019-08-01	1257.2 2019-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1406.7 2018-05-01	1406.7 2018-05-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1176.8	1169.8	1200	1200
Analysis
Rating	1176.8	1169.8	1200	1200
Raw rating	1176.8	1169.8	1200	1200
Weighted rating	1176.8	1169.8	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	747.5	757.2	700	700
Max/Min rating change allowed	171.4	173.1	165.8	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	1176.8	1169.8	1200	1200
New weighted rating	1176.8	1169.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1176.8	1169.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1176.8	1169.8	1200	1200
New K-factor	36	36	36	36
New floor	747.5	757.2	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	20	20

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	20	11.5	57.5	63.8	1121.5	1185.3
Standard	20	11.5	57.5	63.8	1121.5	1185.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1176.8	1169.8	1200	1200
2025-09-01	1176.8	1169.8	1200	1200
2025-08-01	1176.8	1169.8	1200	1200
2025-07-01	1176.8	1169.8	1200	1200
2025-06-01	1176.8	1169.8	1200	1200
2025-05-01	1176.8	1169.8	1200	1200
2025-04-01	1176.8	1169.8	1200	1200
2025-03-01	1176.8	1169.8	1200	1200
2025-02-01	1176.8	1169.8	1200	1200
2025-01-01	1176.8	1169.8	1200	1200
2024-12-01	1176.8	1169.8	1200	1200
2024-11-01	1176.8	1169.8	1200	1200
2024-10-01	1176.8	1169.8	1200	1200
2024-09-01	1176.8	1169.8	1200	1200
2024-08-01	1176.8	1169.8	1200	1200
2024-07-01	1176.8	1169.8	1200	1200
2024-06-01	1176.8	1169.8	1200	1200
2024-08-01	1176.8	1169.8	1200	1200
2024-04-01	1176.8	1169.8	1200	1200
2024-03-01	1176.8	1169.8	1200	1200
2024-02-01	1176.8	1169.8	1200	1200
2024-01-01	1176.8	1169.8	1200	1200
2023-12-01	1176.8	1169.8	1200	1200
2023-11-01	1176.8	1169.8	1200	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	2020 Registration Tournament (E)	2020-01-25	2020-01-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2019 Alekhine Open (F)	2019-08-09	2019-08-09	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
3	2018 Gauteng League Final (U9)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
4	Ekurhuleni North Schools Individuals 2018	2018-05-12	2018-05-12	Standard	Ekurhuleni (GE)	5	5	4.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Ekurhuleni North Schools Individuals 2018				Tournament 2018 Gauteng League Final
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-08-24	rnd 2	type Standard	result 1
		Opponent Mlotshwa, N (Njabulo)				Opponent Poustie, LM (Liam Marx)
2	2	Tournament 2019 Alekhine Open				Tournament 2019 Alekhine Open
		date 2019-08-09	rnd 3	type Standard	result 1	date 2019-08-09	rnd 4	type Standard	result 1
		Opponent De Jager, G (Gustave)				Opponent Prinsloo, M (Migael)
3	1	Tournament 2020 Registration Tournament				Tournament 2020 Registration Tournament
		date 2020-01-25	rnd 4	type Standard	result 1	date 2020-01-25	rnd 4	type Standard	result 1
		Opponent Friedrich, M (Miane)				Opponent Friedrich, M (Miane)

#	Games	Start				End
1	7	Tournament Ekurhuleni North Schools Individuals 2018				Tournament 2018 Gauteng League Final
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-08-24	rnd 2	type Standard	result 1
		Opponent Mlotshwa, N (Njabulo)				Opponent Poustie, LM (Liam Marx)
2	2	Tournament 2019 Alekhine Open				Tournament 2019 Alekhine Open
		date 2019-08-09	rnd 3	type Standard	result 1	date 2019-08-09	rnd 4	type Standard	result 1
		Opponent De Jager, G (Gustave)				Opponent Prinsloo, M (Migael)
3	1	Tournament 2020 Registration Tournament				Tournament 2020 Registration Tournament
		date 2020-01-25	rnd 4	type Standard	result 1	date 2020-01-25	rnd 4	type Standard	result 1
		Opponent Friedrich, M (Miane)				Opponent Friedrich, M (Miane)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Individuals 2018				Tournament 2018 Gauteng League Final
		date 2018-05-12	rnd 5	type Standard	result 1	date 2018-08-24	rnd 2	type Standard	result 1
		Opponent Botha, T (Trevor Justus)				Opponent Poustie, LM (Liam Marx)
2	3	Tournament Ekurhuleni North Schools Individuals 2018				Tournament Ekurhuleni North Schools Individuals 2018
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-05-12	rnd 3	type Standard	result 1
		Opponent Mlotshwa, N (Njabulo)				Opponent Van Zyl, S (Sharick)
3	2	Tournament 2019 Alekhine Open				Tournament 2019 Alekhine Open
		date 2019-08-09	rnd 3	type Standard	result 1	date 2019-08-09	rnd 4	type Standard	result 1
		Opponent De Jager, G (Gustave)				Opponent Prinsloo, M (Migael)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Individuals 2018				Tournament 2018 Gauteng League Final
		date 2018-05-12	rnd 5	type Standard	result 1	date 2018-08-24	rnd 2	type Standard	result 1
		Opponent Botha, T (Trevor Justus)				Opponent Poustie, LM (Liam Marx)
2	3	Tournament Ekurhuleni North Schools Individuals 2018				Tournament Ekurhuleni North Schools Individuals 2018
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-05-12	rnd 3	type Standard	result 1
		Opponent Mlotshwa, N (Njabulo)				Opponent Van Zyl, S (Sharick)
3	2	Tournament 2019 Alekhine Open				Tournament 2019 Alekhine Open
		date 2019-08-09	rnd 3	type Standard	result 1	date 2019-08-09	rnd 4	type Standard	result 1
		Opponent De Jager, G (Gustave)				Opponent Prinsloo, M (Migael)

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	De Jager ,G (Gustave)	1	1	425	1	1	425	0	0	0	0	0	0
1	De Jager ,G (Gustave)	1	1197.6	1622.6	1	1194.2	1622.6	0	0	0	0	0	0
2	Sathish ,A (Abinavah)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Sathish ,A (Abinavah)	1	1140.7	715.7	1	1140.3	715.7	0	0	0	0	0	0
3	Lombard ,N (Nicole)	1	1	425	1	1	425	0	0	0	0	0	0
3	Lombard ,N (Nicole)	1	1118	1543	1	1097.6	1543	0	0	0	0	0	0
4	Mlotshwa ,N (Njabulo)	1	1	425	1	1	425	0	0	0	0	0	0
4	Mlotshwa ,N (Njabulo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Weitz ,J (Johann)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Weitz ,J (Johann)	1	1216.2	791.2	1	1208.8	791.2	0	0	0	0	0	0
6	Swanepoel ,D (Darius)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Swanepoel ,D (Darius)	1	974.8	549.8	1	973.1	549.8	0	0	0	0	0	0
7	Van Zyl ,S (Sharick)	1	1	425	1	1	425	0	0	0	0	0	0
7	Van Zyl ,S (Sharick)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Stander ,A (Andrew)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Stander ,A (Andrew)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Hattingh ,T (Tiaan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Hattingh ,T (Tiaan)	1	506.8	506.8	1	506.8	506.8	0	0	0	0	0	0
10	Negota ,K (Khodani)	1	1	425	1	1	425	0	0	0	0	0	0
10	Negota ,K (Khodani)	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

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

De Graaff, R (Ruben)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms