Chess South Africa Ratings Database

PLAYER PAGE

Personal

Silver, J (Johaylin)

Chess SA id

1150154610

FIDE id

Date of birth

2015-03-04 (U12)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

14.2

Junior GPX Points

977.3

Item	Main	Standard	Rapid	Blitz
Rating	1187.9	1199.6	1187.5	1200
Raw rating	1181.2	1199.6	1177.7	1200
Weighted rating	1187.9	1199.6	1187.5	1200
Weighted performance	1020.8	0	1086.9	0
Floor	702.4	700	708.9	700
K-factor	36	36	36	36
Min/Max rating change allowed	170.3	165.9	171.2	165.8
Highest rating	1202.4 2025-03-01	1200 2018-10-01	1208.9 2025-03-01	1200 2018-10-01
Highest raw rating	1202.4 2025-03-01	1200 2024-02-01	1208.9 2025-03-01	1200 2024-02-01
Highest weighted rating	1202.4 2018-10-01	1200 2018-10-01	1208.9 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-02-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.6	0	-0.7	0
New rating	1187.3	1199.6	1186.8	1200
Analysis
Rating	1187.9	1199.6	1187.5	1200
Raw rating	1181.2	1199.6	1177.7	1200
Weighted rating	1187.9	1199.6	1187.5
Weighted performance	1020.8	0	1086.9
K-factor	36	36	36	36
Floor	702.4	700	708.9	700
Max/Min rating change allowed	170.3	165.9	171.2	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	1181.2	1199.6	1177.7	1200
New weighted rating	1187.3	1199.6	1186.8	1200
New weighted performance	1014.3	0	1079.8	0
Temp new rating	1187.3	1199.6	1186.8	1200
Temp new rating +/-	-0.6	0	-0.7	0
Final new rating +/-	-0.6	0	-0.7	0
New rating	1187.3	1199.6	1186.8	1200
New K-factor	36	36	36	36
New floor	702.4	700	708.9	700

Item	Main	Standard	Rapid
	0	0	0
	19	6	13
	14	0	14
	5	0	5
	0	0	0
	0	0	0
History	38	6	32

Games since
	Main 33	Standard 6		Rapid 27		Blitz 0
Gender	Male
Age group	U12
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1731		857		210
Male	1306		636		144
U12	338		181		48
U12 Male	230		118		25
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	19	7.5	39.47	-89.5	1215.1	1125.6
Standard	6	1.5	25	-212.5	1235.2	1022.7
Rapid	13	6	46.15	-32.7	1205.8	1173.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	17	44.74	-44.7	1197.6	1152.8
Standard	6	1.5	25	-212.5	1235.2	1022.7
Rapid	32	15.5	48.44	-13.3	1190.5	1177.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1181.2	1199.6	1177.7	1200
2025-09-30	1181.2	1199.6	1177.7	1200
2025-09-01	1181.2	1199.6	1177.7	1200
2025-08-01	1190.2	1199.6	1191.7	1200
2025-07-01	1190.2	1199.6	1191.7	1200
2025-06-01	1189.7	1199.6	1191.7	1200
2025-05-01	1190.4	1199.4	1208.9	1200
2025-04-01	1188.7	1195.9	1208.9	1200
2025-03-01	1202.4	1200	1208.9	1200
2025-02-01	1190.9	1200	1189.9	1200
2025-01-01	1190.9	1200	1189.9	1200
2024-12-01	1190.9	1200	1189.9	1200
2024-11-01	1183.8	1200	1174.4	1200
2024-10-01	1183.8	1200	1174.4	1200
2024-09-01	1183.8	1200	1174.4	1200
2024-08-01	1183.8	1200	1174.4	1200
2024-07-01	1183.8	1200	1174.4	1200
2024-09-01	1183.8	1200	1174.4	1200
2024-05-01	1195.5	1200	1187	1200
2024-04-01	1195.5	1200	1187	1200
2024-03-01	1195.5	1200	1187	1200
2024-02-01	1195.5	1200	1187	1200
2024-01-01	1195.5	1200	1187	1200
2023-12-01	1195.5	1200	1187	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Pedro Booyse Top Schools 2025 (U11)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	5	3	1	Yes	Analysis
2	Brenton Cupido West Coast Development Championship 2025 (U11 Boys)	2025-05-24	2025-05-24	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
3	West Coast Schools Chess Prestige 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	1.5	Yes	Analysis
4	Lower West Coast Prestige 2025 (U11 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Pedro Booyse Top Schools 2025 (U11)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	5	3	1	Yes	Analysis
2	Brenton Cupido West Coast Development Championship 2025 (U11 Boys)	2025-05-24	2025-05-24	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
3	West Coast Schools Chess Prestige 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	1.5	Yes	Analysis
4	Lower West Coast Prestige 2025 (U11 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
5	West Coast Grand Challange League 2024 (PS Development)	2024-10-26	2024-10-26	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
6	Brenton Cupido West Coast Schools Championship 2024 (U7+U9)	2024-05-25	2024-05-25	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
7	Lower West Top Schools 2024 (U9+U11)	2024-05-11	2024-05-11	Rapid	West Coast (WCU)	5	4	0	Yes	Analysis
8	West Coast Schools Development Championships 2023 (U9 Boys)	2023-04-22	2023-04-22	Rapid	West Coast (WCU)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Brenton Cupido West Coast Schools Championship 2024				Tournament West Coast Grand Challange League 2024
		date 2024-05-25	rnd 3	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Teixeira, E (Elisha)				Opponent Gysenberg, N (Niquin)
2	3	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Prestige 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Solomons, R (Rubinho)				Opponent Meyer, A (Aron)
3	1	Tournament Pedro Booyse Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Erasmus, L (Leighton)				Opponent Erasmus, L (Leighton)

#	Games	Start				End
1	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 5	type Standard	result 0.5	date 2025-03-08	rnd 5	type Standard	result 0.5
		Opponent Mqengwana, A (Asonge)				Opponent Mqengwana, A (Asonge)
2	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Boois, R (Ruwano)				Opponent Boois, R (Ruwano)

#	Games	Start				End
1	4	Tournament Brenton Cupido West Coast Schools Championship 2024				Tournament West Coast Grand Challange League 2024
		date 2024-05-25	rnd 3	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Teixeira, E (Elisha)				Opponent Gysenberg, N (Niquin)
2	3	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Prestige 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Solomons, R (Rubinho)				Opponent Meyer, A (Aron)
3	1	Tournament Pedro Booyse Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Erasmus, L (Leighton)				Opponent Erasmus, L (Leighton)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Brenton Cupido West Coast Schools Championship 2024				Tournament West Coast Grand Challange League 2024
		date 2024-05-25	rnd 3	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Teixeira, E (Elisha)				Opponent Gysenberg, N (Niquin)
2	3	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Prestige 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Solomons, R (Rubinho)				Opponent Meyer, A (Aron)
3	1	Tournament Pedro Booyse Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Erasmus, L (Leighton)				Opponent Erasmus, L (Leighton)

#	Games	Start				End
1	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Boois, R (Ruwano)				Opponent Boois, R (Ruwano)

#	Games	Start				End
1	4	Tournament Brenton Cupido West Coast Schools Championship 2024				Tournament West Coast Grand Challange League 2024
		date 2024-05-25	rnd 3	type Rapid	result 1	date 2024-10-26	rnd 1	type Rapid	result 1
		Opponent Teixeira, E (Elisha)				Opponent Gysenberg, N (Niquin)
2	3	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Prestige 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Solomons, R (Rubinho)				Opponent Meyer, A (Aron)
3	1	Tournament Pedro Booyse Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-08-23	rnd 2	type Rapid	result 1	date 2025-08-23	rnd 2	type Rapid	result 1
		Opponent Erasmus, L (Leighton)				Opponent Erasmus, L (Leighton)

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	Gysenberg ,N (Niquin)	2	1	0	1	0	-425	1	1	425	0	0	0
1	Gysenberg ,N (Niquin)	2	1204.7	1204.7	1	1200	779.7	1	1200	1629.7	0	0	0
2	Richards ,L (Lee Quin)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
2	Richards ,L (Lee Quin)	2	1104.4	891.9	0	0	0	2	1067.8	891.9	0	0	0
3	Swartz ,R (Rowan)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Swartz ,R (Rowan)	2	1168.9	743.9	0	0	0	2	1216.5	743.9	0	0	0
4	Pienaar ,K (Kaylicia)	2	1	0	0	0	0	2	1	0	0	0	0
4	Pienaar ,K (Kaylicia)	2	1212.1	1212.1	0	0	0	2	1211.7	1212.1	0	0	0
5	Boois ,R (Ruwano)	1	1	425	1	1	425	0	0	0	0	0	0
5	Boois ,R (Ruwano)	1	1234.7	1659.7	1	1200	1659.7	0	0	0	0	0	0
6	Mqengwana ,A (Asonge)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Mqengwana ,A (Asonge)	1	1199.9	1199.9	1	1200	1199.9	0	0	0	0	0	0
7	Nthaba ,S (Samuel)	1	1	425	0	0	0	1	1	425	0	0	0
7	Nthaba ,S (Samuel)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Da Camara ,I (Izabella)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Da Camara ,I (Izabella)	1	1183.7	758.7	0	0	0	1	1172	758.7	0	0	0
9	Leutloa ,K (Kanelo)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Leutloa ,K (Kanelo)	1	1200	775	0	0	0	1	1200	775	0	0	0
10	Appollis ,D (Diego)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Appollis ,D (Diego)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Silver, J (Johaylin)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms