Chess South Africa Ratings Database

PLAYER PAGE

Personal

Sewchurn, S (Sonali)

Chess SA id

1110318391

FIDE id

Date of birth

2011-04-26 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1128.5

Item	Main	Standard	Rapid	Blitz
Rating	1204.1	1204.9	1200	1200
Raw rating	1202.3	1202.8	1200	1200
Weighted rating	1204.1	1204.9	1200	1200
Weighted performance	0	0	0	0
Floor	717.5	721	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	165.3	165.1	165.8	165.8
Highest rating	1217.5 2025-04-01	1221 2025-04-01	1200 2025-04-01	1200 2025-04-01
Highest raw rating	1217.5 2025-04-01	1221 2025-04-01	1200 2025-04-01	1200 2025-04-01
Highest weighted rating	1217.5 2025-06-01	1221 2025-06-01	1200 2025-04-01	1200 2025-04-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0	-0	0	0
New rating	1204.1	1204.9	1200	1200
Analysis
Rating	1204.1	1204.9	1200	1200
Raw rating	1202.3	1202.8	1200	1200
Weighted rating	1204.1	1204.9	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	717.5	721	700	700
Max/Min rating change allowed	165.3	165.1	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	1202.3	1202.8	1200	1200
New weighted rating	1204.1	1204.9	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1204.1	1204.9	1200	1200
Temp new rating +/-	-0	-0	0	0
Final new rating +/-	-0	-0	0	0
New rating	1204.1	1204.9	1200	1200
New K-factor	36	36	36	36
New floor	717.5	721	700	700

Item	Main	Standard
	0	0
	14	14
	0	0
	0	0
	0	0
	0	0
History	14	14

Games since
	Main 14	Standard 14		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	14	6	42.86	-60.7	1197	1136.3
Standard	14	6	42.86	-60.7	1197	1136.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	14	6	42.86	-60.7	1197	1136.3
Standard	14	6	42.86	-60.7	1197	1136.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1202.3	1202.8	1200	1200
2025-09-01	1202.3	1202.8	1200	1200
2025-08-01	1202.3	1202.8	1200	1200
2025-07-01	1203	1203.7	1200	1200
2025-06-01	1217.5	1221	1200	1200
2025-05-01	1217.5	1221	1200	1200
2025-04-01	1217.5	1221	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	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	JMC - Trinity Randpark Ridge 2025 (D)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	JCC Steyn City High Schools League 2025 (B)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	4	1	Yes	Analysis
3	JCC - Dainfern Chess League 2025 (B)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JMC - Trinity Randpark Ridge 2025 (D)	2025-07-26	2025-07-26	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	JCC Steyn City High Schools League 2025 (B)	2025-05-07	2025-06-09	Standard	Johannesburg Metro (GJM)	6	4	1	Yes	Analysis
3	JCC - Dainfern Chess League 2025 (B)	2025-02-03	2025-03-17	Standard	Johannesburg Metro (GJM)	6	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-10	rnd 5	type Standard	result 1
		Opponent Mabanga, N (Nkanyiso)				Opponent Ruvunangiza, Y (Yvan)
2	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Matlou, L (Lukie Junior)				Opponent Matlou, L (Lukie Junior)
3	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Chikwava, R (Ronald)				Opponent Chikwava, R (Ronald)

#	Games	Start				End
1	3	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-10	rnd 5	type Standard	result 1
		Opponent Mabanga, N (Nkanyiso)				Opponent Ruvunangiza, Y (Yvan)
2	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Matlou, L (Lukie Junior)				Opponent Matlou, L (Lukie Junior)
3	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Chikwava, R (Ronald)				Opponent Chikwava, R (Ronald)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-10	rnd 5	type Standard	result 1
		Opponent Mabanga, N (Nkanyiso)				Opponent Ruvunangiza, Y (Yvan)
2	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Matlou, L (Lukie Junior)				Opponent Matlou, L (Lukie Junior)
3	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Chikwava, R (Ronald)				Opponent Chikwava, R (Ronald)

#	Games	Start				End
1	3	Tournament JCC - Dainfern Chess League 2025				Tournament JCC - Dainfern Chess League 2025
		date 2025-02-17	rnd 3	type Standard	result 1	date 2025-03-10	rnd 5	type Standard	result 1
		Opponent Mabanga, N (Nkanyiso)				Opponent Ruvunangiza, Y (Yvan)
2	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 5	type Standard	result 1	date 2025-07-26	rnd 5	type Standard	result 1
		Opponent Matlou, L (Lukie Junior)				Opponent Matlou, L (Lukie Junior)
3	1	Tournament JMC - Trinity Randpark Ridge 2025				Tournament JMC - Trinity Randpark Ridge 2025
		date 2025-07-26	rnd 3	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Chikwava, R (Ronald)				Opponent Chikwava, R (Ronald)

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	Seti ,X (Xoli)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Seti ,X (Xoli)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Ruvunangiza ,Y (Yvan)	1	1	425	1	1	425	0	0	0	0	0	0
2	Ruvunangiza ,Y (Yvan)	1	1180	1605	1	1175.8	1605	0	0	0	0	0	0
3	Hsu ,S (Shaun)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Hsu ,S (Shaun)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Leope ,W (Waratwa)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Leope ,W (Waratwa)	1	1196.5	771.5	1	1198	771.5	0	0	0	0	0	0
5	Mabanga ,N (Nkanyiso)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mabanga ,N (Nkanyiso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Mkhize ,S (Sihle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Mkhize ,S (Sihle)	1	1199.9	774.9	1	1199.8	774.9	0	0	0	0	0	0
7	Shao ,S (Sheura)	1	1	425	1	1	425	0	0	0	0	0	0
7	Shao ,S (Sheura)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Maposa ,M (Menelik)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Maposa ,M (Menelik)	1	1162.3	737.3	1	1165.8	737.3	0	0	0	0	0	0
9	Moloi ,T (Tumelo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Moloi ,T (Tumelo)	1	1211.7	1636.7	1	1213.4	1636.7	0	0	0	0	0	0
10	Pillay ,A (Angelique)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Pillay ,A (Angelique)	1	1206.6	781.6	1	1209.4	781.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Sewchurn, S (Sonali)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms