Chess South Africa Ratings Database

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Personal

Da Silva, J (Joshua)

Chess SA id

1070138635

FIDE id

Date of birth

2007-04-03 (U20)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1235.9	1237.6	1192	1200
Raw rating	1235.9	1237.6	1192	1200
Weighted rating	1235.9	1237.6	1192	1200
Weighted performance	0	0	0	0
Floor	736.2	740.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.5	157.2	167.7	165.8
Highest rating	1241.3 2023-02-01	1345.9 2023-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1236.2 2023-03-01	1240.8 2023-03-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1236.2 2025-02-01	1240.8 2025-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1241.3 2023-02-01	1345.9 2023-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1235.9	1237.6	1192	1200
Analysis
Rating	1235.9	1237.6	1192	1200
Raw rating	1235.9	1237.6	1192	1200
Weighted rating	1235.9	1237.6	1192
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	736.2	740.8	700	700
Max/Min rating change allowed	157.5	157.2	167.7	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	1235.9	1237.6	1192	1200
New weighted rating	1235.9	1237.6	1192	1200
New weighted performance	0	0	0	0
Temp new rating	1235.9	1237.6	1192	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1235.9	1237.6	1192	1200
New K-factor	36	36	36	36
New floor	736.2	740.8	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	12	12	0
	6	0	6
	0	0	0
History	18	12	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Town (WCT)
Province	Western Cape (WC)
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	18	10	55.56	47.2	1215.3	1262.6
Standard	12	7	58.33	70.8	1225	1295.9
Rapid	6	3	50	0	1195.9	1195.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1235.9	1237.6	1192	1200
2025-09-30	1235.9	1237.6	1192	1200
2025-09-01	1235.9	1237.6	1192	1200
2025-08-01	1235.9	1237.6	1192	1200
2025-07-01	1235.9	1237.6	1192	1200
2025-06-01	1235.9	1237.6	1192	1200
2025-05-01	1235.9	1237.6	1192	1200
2025-04-01	1235.9	1237.6	1192	1200
2025-03-01	1235.9	1237.6	1192	1200
2025-02-01	1235.9	1237.6	1192	1200
2025-01-01	1235.9	1237.6	1192	1200
2024-12-01	1235.9	1237.6	1192	1200
2024-11-01	1235.9	1237.6	1192	1200
2024-10-01	1235.9	1237.6	1192	1200
2024-09-01	1235.9	1237.6	1192	1200
2024-08-01	1235.9	1237.6	1192	1200
2024-07-01	1235.9	1237.6	1192	1200
2024-09-01	1235.9	1237.6	1192	1200
2024-05-01	1235.9	1237.6	1192	1200
2024-04-01	1235.9	1237.6	1192	1200
2024-03-01	1235.9	1237.6	1192	1200
2024-02-01	1235.9	1237.6	1192	1200
2024-01-01	1235.9	1237.6	1192	1200
2023-12-01	1235.9	1237.6	1192	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	Cape Town Metro Schools Chess Closed Individuals 2023 (U17 Boys)	2023-03-03	2023-03-04	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
2	North District School Trials 2023 (U17 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
3	District North 2022 (U15)	2022-03-06	2022-03-06	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Standard	result 0.5	date 2023-03-04	rnd 6	type Standard	result 1
		Opponent Truter, M (Martin)				Opponent Pheiffers, G (Gary)
2	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 3	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Ackerman, K (Kyle)				Opponent Prince, M (Mason)
3	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 5	type Rapid	result 1	date 2022-03-06	rnd 5	type Rapid	result 1
		Opponent Strydom, B (Barry)				Opponent Strydom, B (Barry)

#	Games	Start				End
1	4	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 3	type Standard	result 0.5	date 2023-03-04	rnd 6	type Standard	result 1
		Opponent Truter, M (Martin)				Opponent Pheiffers, G (Gary)
2	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 3	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Ackerman, K (Kyle)				Opponent Prince, M (Mason)

#	Games	Start				End
1	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 5	type Rapid	result 1	date 2022-03-06	rnd 5	type Rapid	result 1
		Opponent Strydom, B (Barry)				Opponent Strydom, B (Barry)
2	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 3	type Rapid	result 1	date 2022-03-06	rnd 3	type Rapid	result 1
		Opponent Monyepao, K (Khutso)				Opponent Monyepao, K (Khutso)
3	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 1	type Rapid	result 1	date 2022-03-06	rnd 1	type Rapid	result 1
		Opponent Shete, L (Lisoliyabona)				Opponent Shete, L (Lisoliyabona)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 3	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Ackerman, K (Kyle)				Opponent Prince, M (Mason)
2	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 6	type Standard	result 1	date 2023-03-04	rnd 6	type Standard	result 1
		Opponent Pheiffers, G (Gary)				Opponent Pheiffers, G (Gary)
3	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 4	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Cozyn, S (Saud)				Opponent Cozyn, S (Saud)

#	Games	Start				End
1	4	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 3	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Ackerman, K (Kyle)				Opponent Prince, M (Mason)
2	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 6	type Standard	result 1	date 2023-03-04	rnd 6	type Standard	result 1
		Opponent Pheiffers, G (Gary)				Opponent Pheiffers, G (Gary)
3	1	Tournament Cape Town Metro Schools Chess Closed Individuals 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-03-04	rnd 4	type Standard	result 1	date 2023-03-04	rnd 4	type Standard	result 1
		Opponent Cozyn, S (Saud)				Opponent Cozyn, S (Saud)

#	Games	Start				End
1	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 5	type Rapid	result 1	date 2022-03-06	rnd 5	type Rapid	result 1
		Opponent Strydom, B (Barry)				Opponent Strydom, B (Barry)
2	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 3	type Rapid	result 1	date 2022-03-06	rnd 3	type Rapid	result 1
		Opponent Monyepao, K (Khutso)				Opponent Monyepao, K (Khutso)
3	1	Tournament District North 2022				Tournament District North 2022
		date 2022-03-06	rnd 1	type Rapid	result 1	date 2022-03-06	rnd 1	type Rapid	result 1
		Opponent Shete, L (Lisoliyabona)				Opponent Shete, L (Lisoliyabona)

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	Truter ,M (Martin)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Truter ,M (Martin)	1	1201.3	1201.3	1	1202.4	1201.3	0	0	0	0	0	0
2	Pols ,J (Jean-Luke)	1	1	425	1	1	425	0	0	0	0	0	0
2	Pols ,J (Jean-Luke)	1	1165	1590	1	1200	1590	0	0	0	0	0	0
3	Mizen ,D (Daniel)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mizen ,D (Daniel)	1	1284.6	859.6	1	1216.7	859.6	0	0	0	0	0	0
4	Pheiffers ,G (Gary)	1	1	425	1	1	425	0	0	0	0	0	0
4	Pheiffers ,G (Gary)	1	1118.7	1543.7	1	1102.8	1543.7	0	0	0	0	0	0
5	Williams ,R (Reinaert)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Williams ,R (Reinaert)	1	1243	818	1	1200	818	0	0	0	0	0	0
6	Prince ,M (Mason)	1	1	425	1	1	425	0	0	0	0	0	0
6	Prince ,M (Mason)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Bierman ,T (Tiaan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Bierman ,T (Tiaan)	1	1247.1	1247.1	1	1231.2	1247.1	0	0	0	0	0	0
8	Van Rooi ,L (Laim)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Rooi ,L (Laim)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Cozyn ,S (Saud)	1	1	425	1	1	425	0	0	0	0	0	0
9	Cozyn ,S (Saud)	1	1198.3	1623.3	1	1200	1623.3	0	0	0	0	0	0
10	Msebi ,S (Simamkele)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Msebi ,S (Simamkele)	1	1407.3	982.3	1	1395	982.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Da Silva, J (Joshua)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms