Chess South Africa Ratings Database

PLAYER PAGE

Personal

Griezel, R (Reuben)

Chess SA id

107077372

FIDE id

Date of birth

2007-01-01 (U20)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-07-28

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	881.7	851.2	639.8	639.8
Raw rating	881.7	851.2	639.8	639.8
Weighted rating	881.7	851.2	639.8	639.8
Weighted performance	80	77.1	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	261	272.5	368.3	368.3
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	881.7 2024-02-01	851.2 2024-02-01	639.8 2024-02-01	639.8 2024-02-01
Highest weighted rating	881.7 2024-11-01	851.2 2024-11-01	639.8 2024-11-01	639.8 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	881.7	851.2	639.8	639.8
Analysis
Rating	881.7	851.2	639.8	639.8
Raw rating	881.7	851.2	639.8	639.8
Weighted rating	881.7	851.2	639.8
Weighted performance	80	77.1	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	261	272.5	368.3	368.3
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	881.7	851.2	639.8	639.8
New weighted rating	881.7	851.2	639.8	639.8
New weighted performance	79.7	76.8	0	0
Temp new rating	881.7	851.2	639.8	639.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	881.7	851.2	639.8	639.8
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	100	88	12

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	32	13	40.62	-79.7	972.6	892.9
Standard	32	13	40.62	-79.7	972.6	892.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	881.7	851.2	639.8	639.8
2025-09-01	881.7	851.2	639.8	639.8
2025-08-01	881.7	851.2	639.8	639.8
2025-07-01	881.7	851.2	639.8	639.8
2025-06-01	881.7	851.2	639.8	639.8
2025-05-01	881.7	851.2	639.8	639.8
2025-04-01	881.7	851.2	639.8	639.8
2025-03-01	881.7	851.2	639.8	639.8
2025-02-01	881.7	851.2	639.8	639.8
2025-01-01	881.7	851.2	639.8	639.8
2024-12-01	881.7	851.2	639.8	639.8
2024-11-01	881.7	851.2	639.8	639.8
2024-10-01	881.7	851.2	639.8	639.8
2024-09-01	881.7	851.2	639.8	639.8
2024-08-01	881.7	851.2	639.8	639.8
2024-07-01	881.7	851.2	639.8	639.8
2024-06-01	881.7	851.2	639.8	639.8
2024-08-01	881.7	851.2	639.8	639.8
2024-04-01	881.7	851.2	639.8	639.8
2024-03-01	881.7	851.2	639.8	639.8
2024-02-01	881.7	851.2	639.8	639.8
2024-01-01	881.7	851.2	639.8	639.8
2023-12-01	881.7	851.2	639.8	639.8
2023-11-01	881.7	851.2	639.8	639.8

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	NMBJC Closed 2018 (U12)	2018-07-27	2018-07-28	Standard	Nelson Mandela Bay (ENM)	6	5	2.5	Yes	Analysis
2	NMBJC Trials 4 2018 (U12)	2018-07-20	2018-07-21	Standard	Nelson Mandela Bay (ENM)	5	5	1	Yes	Analysis
3	NMB Youth Chess Trial 3 2018 (U12)	2018-05-11	2018-05-12	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
4	NMB Second Trials 2018 (U12)	2018-04-20	2018-04-22	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
5	NMB First Trails 2018 (U12)	2018-03-23	2018-03-24	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
6	Registration Tournament 2018 (B)	2018-02-23	2018-02-24	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-23	rnd 2	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Steenkamp, CH (Casper-Hendrik)				Opponent Holmes, AM (Alex)
2	2	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 5	type Standard	result 1	date 2018-07-28	rnd 6	type Standard	result 0.5
		Opponent Ragaval, T (Thearsony)				Opponent Jeppe, D (Daniel)
3	1	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 3	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Leeson, CL (Calib Lee)				Opponent Leeson, CL (Calib Lee)

#	Games	Start				End
1	3	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-23	rnd 2	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Steenkamp, CH (Casper-Hendrik)				Opponent Holmes, AM (Alex)
2	2	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 5	type Standard	result 1	date 2018-07-28	rnd 6	type Standard	result 0.5
		Opponent Ragaval, T (Thearsony)				Opponent Jeppe, D (Daniel)
3	1	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 3	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Leeson, CL (Calib Lee)				Opponent Leeson, CL (Calib Lee)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-23	rnd 2	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Steenkamp, CH (Casper-Hendrik)				Opponent Holmes, AM (Alex)
2	1	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 5	type Standard	result 1	date 2018-07-28	rnd 5	type Standard	result 1
		Opponent Ragaval, T (Thearsony)				Opponent Ragaval, T (Thearsony)
3	1	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 3	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Leeson, CL (Calib Lee)				Opponent Leeson, CL (Calib Lee)

#	Games	Start				End
1	3	Tournament NMB First Trails 2018				Tournament NMB First Trails 2018
		date 2018-03-23	rnd 2	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Steenkamp, CH (Casper-Hendrik)				Opponent Holmes, AM (Alex)
2	1	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 5	type Standard	result 1	date 2018-07-28	rnd 5	type Standard	result 1
		Opponent Ragaval, T (Thearsony)				Opponent Ragaval, T (Thearsony)
3	1	Tournament NMBJC Closed 2018				Tournament NMBJC Closed 2018
		date 2018-07-28	rnd 3	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Leeson, CL (Calib Lee)				Opponent Leeson, CL (Calib Lee)

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	Jeppe ,D (Daniel)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
1	Jeppe ,D (Daniel)	3	1058.1	774.8	3	1053.8	774.8	0	0	0	0	0	0
2	Knox ,S (Steven)	2	1	0	2	1	0	0	0	0	0	0	0
2	Knox ,S (Steven)	2	1118	1118	2	1094.6	1118	0	0	0	0	0	0
3	Leeson ,CL (Calib Lee)	2	2	425	2	2	425	0	0	0	0	0	0
3	Leeson ,CL (Calib Lee)	2	847.8	1272.8	2	751.6	1272.8	0	0	0	0	0	0
4	Hargreaves ,M (Matthew)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Hargreaves ,M (Matthew)	2	986.3	561.3	2	988.8	561.3	0	0	0	0	0	0
5	Williams ,CL (Cleveland Leigh)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Williams ,CL (Cleveland Leigh)	2	915.7	490.7	2	902.1	490.7	0	0	0	0	0	0
6	Le Roux ,S (Seth)	2	1	0	2	1	0	0	0	0	0	0	0
6	Le Roux ,S (Seth)	2	700.7	700.7	2	609.6	700.7	0	0	0	0	0	0
7	Steenkamp ,CH (Casper-Hendrik)	1	1	425	1	1	425	0	0	0	0	0	0
7	Steenkamp ,CH (Casper-Hendrik)	1	514.1	939.1	1	500	939.1	0	0	0	0	0	0
8	Lawrence ,DT (David Thomas)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Lawrence ,DT (David Thomas)	1	748.7	323.7	1	758.4	323.7	0	0	0	0	0	0
9	Louis ,C (Caitlyn)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Louis ,C (Caitlyn)	1	988.6	563.6	1	988.6	563.6	0	0	0	0	0	0
10	Coetzee ,B (Branden)	1	1	425	1	1	425	0	0	0	0	0	0
10	Coetzee ,B (Branden)	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

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PLAYER PAGE

Personal

Griezel, R (Reuben)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms