Chess South Africa Ratings Database

PLAYER PAGE

Personal

Grewar, O (Owen)

Chess SA id

1140149228

FIDE id

Date of birth

2014-12-22 (U12)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-12-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1215.4

Item	Main	Standard	Rapid	Blitz
Rating	1371.2	1356	1200	1200
Raw rating	1371.2	1356	1200	1200
Weighted rating	1364.1	1348	1200	1200
Weighted performance	1078.1	1071.4	0	0
Floor	986.7	987.3	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	129.9	132.8	165.8	165.8
Highest rating	1502.7 2023-08-01	1503.2 2023-08-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1486.7 2023-09-01	1487.3 2023-09-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1486.7 2024-09-01	1487.3 2024-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1502.7 2023-08-01	1503.2 2023-08-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1371.2	1356	1200	1200
Analysis
Rating	1371.2	1356	1200	1200
Raw rating	1371.2	1356	1200	1200
Weighted rating	1364.1	1348	1200
Weighted performance	1078.1	1071.4	0
K-factor	32	32	36	36
Floor	986.7	987.3	700	700
Max/Min rating change allowed	129.9	132.8	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	1371.2	1356	1200	1200
New weighted rating	1363.6	1347.5	1200	1200
New weighted performance	1077.7	1071	0	0
Temp new rating	1371.2	1356	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1371.2	1356	1200	1200
New K-factor	32	32	36	36
New floor	986.7	987.3	700	700

Item	Main	Standard
	0	0
	0	0
	65	65
	50	50
	0	0
	0	0
History	115	115

Games since
	Main 70	Standard 70		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2452		843		70
Male	2002		687		55
U12	341		115		16
U12 Male	253		83		11
Standard
	RSA		Province		Region
Overall	2498		909		83
Male	2023		740		65
U12	347		126		17
U12 Male	256		90		11
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	115	68	59.13	77.6	1266.5	1344.1
Standard	115	68	59.13	77.6	1266.5	1344.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1371.2	1356	1200	1200
2025-09-01	1371.2	1356	1200	1200
2025-08-01	1371.2	1356	1200	1200
2025-07-01	1371.2	1356	1200	1200
2025-06-01	1371.2	1356	1200	1200
2025-05-01	1371.2	1356	1200	1200
2025-04-01	1371.2	1356	1200	1200
2025-03-01	1371.1	1356	1200	1200
2025-02-01	1365.1	1350.1	1200	1200
2025-01-01	1285.9	1267.2	1200	1200
2024-12-01	1318.4	1299.5	1200	1200
2024-11-01	1318.4	1299.5	1200	1200
2024-10-01	1313.1	1291.5	1200	1200
2024-09-01	1339.1	1319	1200	1200
2024-08-01	1371.8	1353.9	1200	1200
2024-07-01	1371.8	1353.9	1200	1200
2024-06-01	1393.6	1379.2	1200	1200
2024-08-01	1401	1386.2	1200	1200
2024-04-01	1424.6	1411.5	1200	1200
2024-03-01	1433.4	1419.8	1200	1200
2024-02-01	1446.1	1433.2	1200	1200
2024-01-01	1438.6	1426.2	1200	1200
2023-12-01	1438.6	1426.2	1200	1200
2023-11-01	1438.6	1426.2	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	Gauteng Inter-Region at UJ 2024 (U12 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
2	Bojanala's e4 In The Chapel 2024 (Knights)	2024-10-26	2024-10-26	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
3	2024 West Rand Trials (U12)	2024-09-07	2024-09-07	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
4	Bojanala's FIDE In The Sparkling Waters 2024 (Junior Champs)	2024-08-17	2024-08-17	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
5	2024 West Rand Rappies Open (U12)	2024-08-03	2024-08-03	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
6	FIDE in the West 2024 (U12)	2024-06-08	2024-06-08	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
7	Bojanala Circuit Championship 1 of 4 2024 (U12)	2024-05-25	2024-05-25	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
8	2024 West Rand RHS Open (U12)	2024-04-13	2024-04-13	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
9	Bojanala Olienpark's One For The Ages 2024 (Knights)	2024-04-20	2024-04-20	Standard	Bojanala Platina (NBR)	5	5	3	Yes	Analysis
10	2024 West Rand Juniors (U12)	2024-03-09	2024-03-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
11	2024 West Rand Open (U12)	2024-02-03	2024-02-03	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
12	2024 Gauteng Inter-Region Chess Championship (U10A)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
13	JMC Kick Off Tournament 2024 (D)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
14	West Rand vs Bojanala Inter-Regional Championships 2023 (U10)	2023-10-14	2023-10-14	Standard	West Rand (GWR)	5	5	1	Yes	Analysis
15	2023 West Rand Trials (U10)	2023-09-09	2023-09-09	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
16	West Rand at Bastion 2023 (U10)	2023-08-05	2023-08-05	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
17	2023 Gauteng Top Schools (U9 Mixed)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	5	5	Yes	Analysis
18	D2 School League Finals 2023 (U9)	2023-07-22	2023-07-22	Standard	West Rand (GWR)	7	6	6	Yes	Analysis
19	2023 West Rand RHS Open (U10)	2023-06-10	2023-06-10	Standard	West Rand (GWR)	5	4	2	Yes	Analysis
20	D2 Schools Individuals 2023 (U9 Boys+Girls)	2023-05-13	2023-05-13	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
21	West Rand Juniors 2023 (U10)	2023-03-18	2023-03-18	Standard	West Rand (GWR)	6	5	1	Yes	Analysis
22	WR Tournament and Coaching 2023 (U10)	2023-02-25	2023-02-25	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
23	2023 West Rand Open (U10)	2023-02-04	2023-02-04	Standard	West Rand (GWR)	5	5	3	Yes	Analysis

#	Games	Start				End
1	8	Tournament D2 School League Finals 2023				Tournament West Rand at Bastion 2023
		date 2023-07-22	rnd 1	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Mangqayi, B (Busisiwe)				Opponent Seitshiri, T (Tshiamo)
2	6	Tournament 2023 Gauteng Top Schools				Tournament 2023 West Rand Trials
		date 2023-08-18	rnd 1	type Standard	result 1	date 2023-09-09	rnd 1	type Standard	result 1
		Opponent Mathebula, B (Banele)				Opponent Ntokwe, T (Tshepiso)
3	5	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-14	rnd 4	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Roberts, F (Frans-Leigh)

#	Games	Start				End
1	8	Tournament D2 School League Finals 2023				Tournament West Rand at Bastion 2023
		date 2023-07-22	rnd 1	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Mangqayi, B (Busisiwe)				Opponent Seitshiri, T (Tshiamo)
2	6	Tournament 2023 Gauteng Top Schools				Tournament 2023 West Rand Trials
		date 2023-08-18	rnd 1	type Standard	result 1	date 2023-09-09	rnd 1	type Standard	result 1
		Opponent Mathebula, B (Banele)				Opponent Ntokwe, T (Tshepiso)
3	5	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-14	rnd 4	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Roberts, F (Frans-Leigh)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament D2 School League Finals 2023				Tournament West Rand at Bastion 2023
		date 2023-07-22	rnd 1	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Mangqayi, B (Busisiwe)				Opponent Seitshiri, T (Tshiamo)
2	6	Tournament 2023 Gauteng Top Schools				Tournament 2023 West Rand Trials
		date 2023-08-18	rnd 1	type Standard	result 1	date 2023-09-09	rnd 1	type Standard	result 1
		Opponent Mathebula, B (Banele)				Opponent Ntokwe, T (Tshepiso)
3	5	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-14	rnd 4	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Roberts, F (Frans-Leigh)

#	Games	Start				End
1	8	Tournament D2 School League Finals 2023				Tournament West Rand at Bastion 2023
		date 2023-07-22	rnd 1	type Standard	result 1	date 2023-08-05	rnd 2	type Standard	result 1
		Opponent Mangqayi, B (Busisiwe)				Opponent Seitshiri, T (Tshiamo)
2	6	Tournament 2023 Gauteng Top Schools				Tournament 2023 West Rand Trials
		date 2023-08-18	rnd 1	type Standard	result 1	date 2023-09-09	rnd 1	type Standard	result 1
		Opponent Mathebula, B (Banele)				Opponent Ntokwe, T (Tshepiso)
3	5	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-14	rnd 4	type Standard	result 1	date 2024-01-28	rnd 3	type Standard	result 1
		Opponent Myburgh, A (Alex)				Opponent Roberts, F (Frans-Leigh)

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	Naidoo ,J (James)	5	0	-425	5	0	-425	0	0	0	0	0	0
1	Naidoo ,J (James)	5	1454.3	1029.3	5	1455.6	1029.3	0	0	0	0	0	0
2	Mangqayi ,B (Busisiwe)	4	2	0	4	2	0	0	0	0	0	0	0
2	Mangqayi ,B (Busisiwe)	4	1188.9	1188.9	4	1186.5	1188.9	0	0	0	0	0	0
3	Laubscher ,D (Declan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
3	Laubscher ,D (Declan)	2	1200	1412.5	2	1200	1412.5	0	0	0	0	0	0
4	Coetzer ,L (Logan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Coetzer ,L (Logan)	2	1209.9	1422.4	2	1212.2	1422.4	0	0	0	0	0	0
5	Kgame ,O (Onalenna Itumeleng)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Kgame ,O (Onalenna Itumeleng)	2	1384.3	959.3	2	1381.4	959.3	0	0	0	0	0	0
6	Magagula ,N (Nkosingiphile)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Magagula ,N (Nkosingiphile)	2	1509.6	1084.6	2	1501.8	1084.6	0	0	0	0	0	0
7	Menyatsoe ,K (Kgosi)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Menyatsoe ,K (Kgosi)	2	1200	775	2	1200	775	0	0	0	0	0	0
8	Mlambo ,M (Mbulelo Ntsako)	2	2	425	2	2	425	0	0	0	0	0	0
8	Mlambo ,M (Mbulelo Ntsako)	2	1211.8	1636.8	2	1214.4	1636.8	0	0	0	0	0	0
9	Arlow ,J (Jaden)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Arlow ,J (Jaden)	2	1404.8	979.8	2	1402.2	979.8	0	0	0	0	0	0
10	Lekgoba ,R (Rethabile Ellen)	2	2	425	2	2	425	0	0	0	0	0	0
10	Lekgoba ,R (Rethabile Ellen)	2	1212.6	1637.6	2	1217.1	1637.6	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

Grewar, O (Owen)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms