Chess South Africa Ratings Database

PLAYER PAGE

Personal

Scriba, J (Joshua)

Chess SA id

1090105977

FIDE id

Date of birth

2009-06-16 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1158.5	1150.8	1200	1200
Raw rating	1158.5	1150.8	1200	1200
Weighted rating	1158.5	1150.8	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	175.9	177.9	165.8	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1158.5	1150.8	1200	1200
Analysis
Rating	1158.5	1150.8	1200	1200
Raw rating	1158.5	1150.8	1200	1200
Weighted rating	1158.5	1150.8	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	175.9	177.9	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	1158.5	1150.8	1200	1200
New weighted rating	1158.5	1150.8	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1158.5	1150.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1158.5	1150.8	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	17	17

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	17	7	41.18	-75	1189.3	1114.3
Standard	17	7	41.18	-75	1189.3	1114.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1158.5	1150.8	1200	1200
2025-09-01	1158.5	1150.8	1200	1200
2025-08-01	1158.5	1150.8	1200	1200
2025-07-01	1158.5	1150.8	1200	1200
2025-06-01	1158.5	1150.8	1200	1200
2025-05-01	1158.5	1150.8	1200	1200
2025-04-01	1158.5	1150.8	1200	1200
2025-03-01	1158.5	1150.8	1200	1200
2025-02-01	1158.5	1150.8	1200	1200
2025-01-01	1158.5	1150.8	1200	1200
2024-12-01	1158.5	1150.8	1200	1200
2024-11-01	1158.5	1150.8	1200	1200
2024-10-01	1158.5	1150.8	1200	1200
2024-09-01	1158.5	1150.8	1200	1200
2024-08-01	1158.5	1150.8	1200	1200
2024-07-01	1158.5	1150.8	1200	1200
2024-06-01	1158.5	1150.8	1200	1200
2024-08-01	1158.5	1150.8	1200	1200
2024-04-01	1158.5	1150.8	1200	1200
2024-03-01	1158.5	1150.8	1200	1200
2024-02-01	1158.5	1150.8	1200	1200
2024-01-01	1158.5	1150.8	1200	1200
2023-12-01	1158.5	1150.8	1200	1200
2023-11-01	1158.5	1150.8	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 Central District (U11)	2020-02-07	2020-02-08	Standard	Cape Town (WCT)	6	5	2	Yes	Analysis
2	Western Cape Top Schools 2019 (U11 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
3	2019 Central District Schools Trials (U11)	2019-02-01	2019-02-02	Standard	Cape Town (WCT)	6	4	2	Yes	Analysis
4	Western Cape Top Schools 2018 (U7+U9 Mix)	2018-08-25	2018-08-26	Standard	Overberg (WOS)	5	4	1	Yes	Analysis

#	Games	Start				End
1	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 6	type Standard	result 1	date 2020-02-08	rnd 6	type Standard	result 1
		Opponent Mutonhori, R (Rooney)				Opponent Mutonhori, R (Rooney)
2	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 4	type Standard	result 1	date 2020-02-08	rnd 4	type Standard	result 1
		Opponent Hendricks, M (Mogamat Basheer)				Opponent Hendricks, M (Mogamat Basheer)
3	1	Tournament Western Cape Top Schools 2019				Tournament Western Cape Top Schools 2019
		date 2019-09-01	rnd 5	type Standard	result 1	date 2019-09-01	rnd 5	type Standard	result 1
		Opponent Arries, J (Jizelle)				Opponent Arries, J (Jizelle)

#	Games	Start				End
1	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 6	type Standard	result 1	date 2020-02-08	rnd 6	type Standard	result 1
		Opponent Mutonhori, R (Rooney)				Opponent Mutonhori, R (Rooney)
2	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 4	type Standard	result 1	date 2020-02-08	rnd 4	type Standard	result 1
		Opponent Hendricks, M (Mogamat Basheer)				Opponent Hendricks, M (Mogamat Basheer)
3	1	Tournament Western Cape Top Schools 2019				Tournament Western Cape Top Schools 2019
		date 2019-09-01	rnd 5	type Standard	result 1	date 2019-09-01	rnd 5	type Standard	result 1
		Opponent Arries, J (Jizelle)				Opponent Arries, J (Jizelle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 6	type Standard	result 1	date 2020-02-08	rnd 6	type Standard	result 1
		Opponent Mutonhori, R (Rooney)				Opponent Mutonhori, R (Rooney)
2	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 4	type Standard	result 1	date 2020-02-08	rnd 4	type Standard	result 1
		Opponent Hendricks, M (Mogamat Basheer)				Opponent Hendricks, M (Mogamat Basheer)
3	1	Tournament Western Cape Top Schools 2019				Tournament Western Cape Top Schools 2019
		date 2019-09-01	rnd 5	type Standard	result 1	date 2019-09-01	rnd 5	type Standard	result 1
		Opponent Arries, J (Jizelle)				Opponent Arries, J (Jizelle)

#	Games	Start				End
1	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 6	type Standard	result 1	date 2020-02-08	rnd 6	type Standard	result 1
		Opponent Mutonhori, R (Rooney)				Opponent Mutonhori, R (Rooney)
2	1	Tournament 2020 Central District				Tournament 2020 Central District
		date 2020-02-08	rnd 4	type Standard	result 1	date 2020-02-08	rnd 4	type Standard	result 1
		Opponent Hendricks, M (Mogamat Basheer)				Opponent Hendricks, M (Mogamat Basheer)
3	1	Tournament Western Cape Top Schools 2019				Tournament Western Cape Top Schools 2019
		date 2019-09-01	rnd 5	type Standard	result 1	date 2019-09-01	rnd 5	type Standard	result 1
		Opponent Arries, J (Jizelle)				Opponent Arries, J (Jizelle)

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	Mcosana ,O (Oyama)	1	1	425	1	1	425	0	0	0	0	0	0
1	Mcosana ,O (Oyama)	1	1193.1	1618.1	1	1187.5	1618.1	0	0	0	0	0	0
2	Mutonhori ,R (Rooney)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mutonhori ,R (Rooney)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Van Der Spuy ,G (Gideon)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Van Der Spuy ,G (Gideon)	1	1130.3	705.3	1	1112.4	705.3	0	0	0	0	0	0
4	Schwulst ,M (Melissa)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Schwulst ,M (Melissa)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Spiller ,A (Arin)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Spiller ,A (Arin)	1	1137.8	712.8	1	1142.3	712.8	0	0	0	0	0	0
6	Janse Van Rensburg ,E (Ethan)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Janse Van Rensburg ,E (Ethan)	1	1168.1	743.1	1	1161.6	743.1	0	0	0	0	0	0
7	De Villiers ,D (Daniella)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	De Villiers ,D (Daniella)	1	1076.4	651.4	1	1063	651.4	0	0	0	0	0	0
8	Spiller ,C (Caden)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Spiller ,C (Caden)	1	1222.9	797.9	1	1177.3	797.9	0	0	0	0	0	0
9	Sonderup ,C (Callum)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Sonderup ,C (Callum)	1	1231.9	806.9	1	1233.9	806.9	0	0	0	0	0	0
10	Arries ,J (Jizelle)	1	1	425	1	1	425	0	0	0	0	0	0
10	Arries ,J (Jizelle)	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

Scriba, J (Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms