Chess South Africa Ratings Database

PLAYER PAGE

Personal

Modi, S (Sonia)

Chess SA id

203023610

FIDE id

Date of birth

2003-11-30 (Adult)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

WCM

Chess SA registered

Last active game

2020-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1925.2	1894.4	1700.7	1724.5
Raw rating	1925.2	1894.4	1700.7	1724.5
Weighted rating	1923.8	1893.3	1700.7	1724.5
Weighted performance	463.9	465	0	0
Floor	1425.2	1394.4	1224.5	1224.5
K-factor	24	24	28	28
Min/Max rating change allowed	59	61.7	81.2	78.5
Highest rating	1925.2 2024-02-01	1894.4 2024-02-01	1724.5 2018-03-01	1724.5 2018-03-01
Highest raw rating	1925.2 2024-02-01	1894.4 2024-02-01	1724.5 2019-12-01	1724.5 2024-02-01
Highest weighted rating	1920.4 2025-08-01	1890.7 2025-08-01	1724.5 2018-03-01	1724.5 2018-03-01
Highest weighted performance	1866 2019-09-01	1868.2 2019-09-01	1473.2 2020-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1925.2	1894.4	1700.7	1724.5
Analysis
Rating	1925.2	1894.4	1700.7	1724.5
Raw rating	1925.2	1894.4	1700.7	1724.5
Weighted rating	1923.8	1893.3	1700.7
Weighted performance	463.9	465	0
K-factor	24	24	28	28
Floor	1425.2	1394.4	1224.5	1224.5
Max/Min rating change allowed	59	61.7	81.2	78.5
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	1925.2	1894.4	1700.7	1724.5
New weighted rating	1924.7	1894	1700.7	1724.5
New weighted performance	463.3	464.5	0	0
Temp new rating	1925.2	1894.4	1700.7	1724.5
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1925.2	1894.4	1700.7	1724.5
New K-factor	24	24	28	28
New floor	1425.2	1394.4	1224.5	1224.5

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	862	824	23	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-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	139	70.5	50.72	6.1	1651.2	1657.3
Standard	133	66.5	50	0	1659	1659
Rapid	6	4	66.67	141.7	1478	1619.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1925.2	1894.4	1700.7	1724.5
2025-09-01	1925.2	1894.4	1700.7	1724.5
2025-08-01	1925.2	1894.4	1700.7	1724.5
2025-07-01	1925.2	1894.4	1700.7	1724.5
2025-06-01	1925.2	1894.4	1700.7	1724.5
2025-05-01	1925.2	1894.4	1700.7	1724.5
2025-04-01	1925.2	1894.4	1700.7	1724.5
2025-03-01	1925.2	1894.4	1700.7	1724.5
2025-02-01	1925.2	1894.4	1700.7	1724.5
2025-01-01	1925.2	1894.4	1700.7	1724.5
2024-12-01	1925.2	1894.4	1700.7	1724.5
2024-11-01	1925.2	1894.4	1700.7	1724.5
2024-10-01	1925.2	1894.4	1700.7	1724.5
2024-09-01	1925.2	1894.4	1700.7	1724.5
2024-08-01	1925.2	1894.4	1700.7	1724.5
2024-07-01	1925.2	1894.4	1700.7	1724.5
2024-06-01	1925.2	1894.4	1700.7	1724.5
2024-08-01	1925.2	1894.4	1700.7	1724.5
2024-04-01	1925.2	1894.4	1700.7	1724.5
2024-03-01	1925.2	1894.4	1700.7	1724.5
2024-02-01	1925.2	1894.4	1700.7	1724.5
2024-01-01	1925.2	1894.4	1700.7	1724.5
2023-12-01	1780.6	1783.1	1700.7	1724.5
2023-11-01	1780.6	1783.1	1700.7	1724.5

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	JNW Club - Trinityhouse Randpark Ridge Open 2020 (A)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	JNW Club - Bryanston Open1 2020 (A)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
3	Chess Heroes Open Rapid Challenge 2020	2020-02-01	2020-02-01	Rapid	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
4	Internationales Chess Festival Innsbruck 2019	2019-08-25	2019-09-01	Standard	Ausria (AUT)	9	8	6	Yes	Analysis
5	Vienna Chess Open 2019	2019-08-17	2019-08-25	Standard	Austria (AUT)	9	9	5	Yes	Analysis
6	JNW Club - Maragon Open 2019 (A)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
7	Hofheimer Fruehjahrsopen A-Open 2019	2019-04-23	2019-04-27	Standard	Germany (GER)	9	8	3	Yes	Analysis
8	GRENKE Chess Open A-Open 2019	2019-04-18	2019-04-22	Standard	Germany (GER)	9	9	5	Yes	Analysis
9	JNW Club - Charterhouse Open 2019 (A)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
10	2019 South African Junior Closed Chess Championship (U16 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	6	Yes	Analysis
11	2019 Constantia Park Open (A)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
12	JNW Club - Bryanston Open 1 2019 (A)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
13	Boksburg Open 2019 (A)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
14	WORLD YOUTH UNDER-16 CHESS OLYMPIAD-2018	2018-11-25	2018-12-02	Standard	Turkey (TUR)	9	8	2	Yes	Analysis
15	JNW Club - Helpmekaar Open 2018 (A)	2018-09-15	2018-09-15	Standard	Johannesburg Metro (GJM)	5	3	1	Yes	Analysis
16	JNW Club - Maragon Open 2018 (A)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
17	Budapest Spring Festival 2018	2018-04-18	2018-04-26	Standard	Hungary (HUN)	9	7	1	Yes	Analysis
18	2018 South African Junior Closed Chess Championships (U16 Girls)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	8	Yes	Analysis
19	The Outpost Chess Club Open 2018 (A)	2018-03-16	2018-03-17	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
20	2018 Volkskool Open (A)	2018-02-17	2018-02-17	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
21	JNW Club - Bryanston Open 2018 (A)	2018-01-26	2018-01-27	Standard	Johannesburg Metro (GJM)	6	5	1.5	Yes	Analysis
22	South African Junior Team Championships 2017 (U16A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	7	Yes	Analysis

#	Games	Start				End
1	7	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Koshy, D (Don)				Opponent Reddy, S (Sachin)
2	5	Tournament Vienna Chess Open 2019				Tournament Internationales Chess Festival Innsbruck 2019
		date 2019-08-25	rnd 9	type Standard	result 1	date 2019-08-27	rnd 4	type Standard	result 0.5
		Opponent Wilson, Matthew R				Opponent Werner Holger
3	5	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-18	rnd 4	type Standard	result 1	date 2019-03-21	rnd 8	type Standard	result 1
		Opponent Mitchells, J (Jamie-Lee)				Opponent Gardiner, N (Noa)

#	Games	Start				End
1	7	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Koshy, D (Don)				Opponent Reddy, S (Sachin)
2	5	Tournament Vienna Chess Open 2019				Tournament Internationales Chess Festival Innsbruck 2019
		date 2019-08-25	rnd 9	type Standard	result 1	date 2019-08-27	rnd 4	type Standard	result 0.5
		Opponent Wilson, Matthew R				Opponent Werner Holger
3	5	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-18	rnd 4	type Standard	result 1	date 2019-03-21	rnd 8	type Standard	result 1
		Opponent Mitchells, J (Jamie-Lee)				Opponent Gardiner, N (Noa)

#	Games	Start				End
1	2	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 5	type Rapid	result 1	date 2020-02-01	rnd 6	type Rapid	result 1
		Opponent Bennie, J (Johannes)				Opponent Bowers, M (Mpho)
2	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 3	type Rapid	result 1	date 2020-02-01	rnd 3	type Rapid	result 1
		Opponent Ramlall, S (Sanjana)				Opponent Ramlall, S (Sanjana)
3	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 1	type Rapid	result 1
		Opponent Kadenhe, T (Tristen)				Opponent Kadenhe, T (Tristen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Koshy, D (Don)				Opponent Reddy, S (Sachin)
2	5	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-18	rnd 4	type Standard	result 1	date 2019-03-21	rnd 8	type Standard	result 1
		Opponent Mitchells, J (Jamie-Lee)				Opponent Gardiner, N (Noa)
3	4	Tournament Internationales Chess Festival Innsbruck 2019				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2019-08-28	rnd 6	type Standard	result 1	date 2020-02-01	rnd 1	type Rapid	result 1
		Opponent Singer Manfred				Opponent Kadenhe, T (Tristen)

#	Games	Start				End
1	7	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Koshy, D (Don)				Opponent Reddy, S (Sachin)
2	5	Tournament 2019 South African Junior Closed Chess Championship				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-18	rnd 4	type Standard	result 1	date 2019-03-21	rnd 8	type Standard	result 1
		Opponent Mitchells, J (Jamie-Lee)				Opponent Gardiner, N (Noa)
3	4	Tournament Internationales Chess Festival Innsbruck 2019				Tournament JNW Club - Bryanston Open1 2020
		date 2019-08-28	rnd 6	type Standard	result 1	date 2020-02-01	rnd 1	type Standard	result 1
		Opponent Singer Manfred				Opponent Potgieter, E (Edward)

#	Games	Start				End
1	2	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 5	type Rapid	result 1	date 2020-02-01	rnd 6	type Rapid	result 1
		Opponent Bennie, J (Johannes)				Opponent Bowers, M (Mpho)
2	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 3	type Rapid	result 1	date 2020-02-01	rnd 3	type Rapid	result 1
		Opponent Ramlall, S (Sanjana)				Opponent Ramlall, S (Sanjana)
3	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 1	type Rapid	result 1
		Opponent Kadenhe, T (Tristen)				Opponent Kadenhe, T (Tristen)

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	Laureles ,R (Raymundo)	5	2	-85	4	2	0	1	0	-425	0	0	0
1	Laureles ,R (Raymundo)	5	1471.3	1386.3	4	1536.3	1471.3	1	1530.1	1046.3	0	0	0
2	Modi ,Y (Yashil)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
2	Modi ,Y (Yashil)	4	1899.2	1686.7	4	1898	1686.7	0	0	0	0	0	0
3	Gardiner ,N (Noa)	3	3	425	3	3	425	0	0	0	0	0	0
3	Gardiner ,N (Noa)	3	1364.3	1789.3	3	1363.6	1789.3	0	0	0	0	0	0
4	Chimbwanda ,P (Panashe)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
4	Chimbwanda ,P (Panashe)	3	1740.5	1882.1	3	1733.1	1882.1	0	0	0	0	0	0
5	Emanuel ,P (Prithee)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
5	Emanuel ,P (Prithee)	2	1045.8	1258.3	2	1050.4	1258.3	0	0	0	0	0	0
6	Longano ,MN (Michael Nicholas)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Longano ,MN (Michael Nicholas)	2	1943.7	1518.7	2	1967	1518.7	0	0	0	0	0	0
7	Booysen ,T (Tineke)	2	1	0	2	1	0	0	0	0	0	0	0
7	Booysen ,T (Tineke)	2	1363.8	1363.8	2	1362.4	1363.8	0	0	0	0	0	0
8	Makoto ,R (Rodwell)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Makoto ,R (Rodwell)	2	2313.1	1888.1	2	2289.2	1888.1	0	0	0	0	0	0
9	Zwakala ,N (Ntando)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Zwakala ,N (Ntando)	2	2076.5	1651.5	2	2078.7	1651.5	0	0	0	0	0	0
10	Potgieter ,E (Edward)	2	2	425	2	2	425	0	0	0	0	0	0
10	Potgieter ,E (Edward)	2	1539	1964	2	1543.7	1964	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

Modi, S (Sonia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms