Chess South Africa Ratings Database

PLAYER PAGE

Personal

John, S (Sophia)

Chess SA id

2120117017

FIDE id

Date of birth

2012-08-02 (U14)

Gender

Female

Region

King Cetshwayo (KUR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1098	1077.4	1235.2	1200
Raw rating	1080.4	1057.2	1235.2	1200
Weighted rating	1098	1077.4	1235.2	1200
Weighted performance	277.7	0	0	0
Floor	710.2	700	735.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	196.6	203.2	157.7	165.8
Highest rating	1217.7 2019-07-01	1200 2018-10-01	1323.9 2019-07-01	1200 2018-10-01
Highest raw rating	1210.2 2019-08-01	1200 2018-02-01	1235.2 2024-03-01	1200 2024-03-01
Highest weighted rating	1210.2 2019-08-01	1200 2018-10-01	1235.2 2024-03-01	1200 2018-10-01
Highest weighted performance	1217.7 2019-07-01	1200 2018-02-01	1323.9 2019-07-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.5	-1.7	0	0
New rating	1096.5	1075.8	1235.2	1200
Analysis
Rating	1098	1077.4	1235.2	1200
Raw rating	1080.4	1057.2	1235.2	1200
Weighted rating	1098	1077.4	1235.2
Weighted performance	277.7	0	0
K-factor	36	36	36	36
Floor	710.2	700	735.2	700
Max/Min rating change allowed	196.6	203.2	157.7	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	1080.4	1057.2	1235.2	1200
New weighted rating	1096.5	1075.8	1235.2	1200
New weighted performance	277.3	0	0	0
Temp new rating	1096.5	1075.8	1235.2	1200
Temp new rating +/-	-1.5	-1.7	0	0
Final new rating +/-	-1.5	-1.7	0	0
New rating	1096.5	1075.8	1235.2	1200
New K-factor	36	36	36	36
New floor	710.2	700	735.2	700

Item	Main	Standard	Rapid
	0	0	0
	3	3	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	34	27	7

Games since
	Main 3	Standard 3		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	King Cetshwayo (KUR)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	3	0	0	-425	1333.8	908.8
Standard	3	0	0	-425	1333.8	908.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	34	12.5	36.76	-112.5	1215.2	1102.7
Standard	27	8	29.63	-173.1	1232.4	1059.2
Rapid	7	4.5	64.29	121.4	1149	1270.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1080.4	1057.2	1235.2	1200
2025-09-01	1099.5	1079.2	1235.2	1200
2025-08-01	1099.5	1079.2	1235.2	1200
2025-07-01	1099.5	1079.2	1235.2	1200
2025-06-01	1099.5	1079.2	1235.2	1200
2025-05-01	1099.5	1079.2	1235.2	1200
2025-04-01	1099.5	1079.2	1235.2	1200
2025-03-01	1099.5	1079.2	1235.2	1200
2025-02-01	1099.5	1079.2	1235.2	1200
2025-01-01	1099.5	1079.2	1235.2	1200
2024-12-01	1099.5	1079.2	1235.2	1200
2024-11-01	1099.5	1079.2	1235.2	1200
2024-10-01	1099.5	1079.2	1235.2	1200
2024-09-01	1099.5	1079.2	1235.2	1200
2024-08-01	1099.5	1079.2	1235.2	1200
2024-07-01	1099.5	1079.2	1235.2	1200
2024-06-01	1099.5	1079.2	1235.2	1200
2024-08-01	1099.5	1079.2	1235.2	1200
2024-04-01	1099.5	1079.2	1235.2	1200
2024-03-01	1099.5	1079.2	1235.2	1200
2024-02-01	1099.5	1079.2	1235.2	1200
2024-01-01	1099.5	1079.2	1235.2	1200
2023-12-01	1099.5	1079.2	1235.2	1200
2023-11-01	1099.5	1079.2	1235.2	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	2025 Umhlathuze Mayoral Cup (U14 Girls)	2025-09-20	2025-09-20	Standard	King Cetshwayo (KUR)	5	3	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Umhlathuze Mayoral Cup (U14 Girls)	2025-09-20	2025-09-20	Standard	King Cetshwayo (KUR)	5	3	0	Yes	Analysis
2	2019 South African Junior Team Championships (U8A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	0	Yes	Analysis
3	2019 Umhlathuze Summer Championship (U10)	2019-10-05	2019-10-05	Standard	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
4	2019 King Cetshwayo Winter (U8)	2019-08-31	2019-09-01	Standard	King Cetshwayo (KUR)	5	5	3	Yes	Analysis
5	2019 King Cetshwayo Girls Chess Festival (U8-U14 Girls)	2019-08-09	2019-08-10	Standard	King Cetshwayo (KUR)	7	7	2	Yes	Analysis
6	2019 King Cetswayo Fun (U8)	2019-07-27	2019-07-27	Rapid	King Cetshwayo (KUR)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2019 King Cetshwayo Winter				Tournament 2019 King Cetshwayo Winter
		date 2019-08-31	rnd 2	type Standard	result 1	date 2019-09-01	rnd 4	type Standard	result 1
		Opponent Vandayar, B (Breydon)				Opponent Murugan, L (Levi)
2	3	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 5	type Rapid	result 1	date 2019-07-27	rnd 7	type Rapid	result 1
		Opponent Munien, J (Josiah)				Opponent Naidu, U (Uzziel)
3	2	Tournament 2019 Umhlathuze Summer Championship				Tournament 2019 Umhlathuze Summer Championship
		date 2019-10-05	rnd 1	type Standard	result 1	date 2019-10-05	rnd 2	type Standard	result 1
		Opponent Zungu, L (Lwazi)				Opponent Murugan, A (Aliyah)

#	Games	Start				End
1	3	Tournament 2019 King Cetshwayo Winter				Tournament 2019 King Cetshwayo Winter
		date 2019-08-31	rnd 2	type Standard	result 1	date 2019-09-01	rnd 4	type Standard	result 1
		Opponent Vandayar, B (Breydon)				Opponent Murugan, L (Levi)
2	2	Tournament 2019 Umhlathuze Summer Championship				Tournament 2019 Umhlathuze Summer Championship
		date 2019-10-05	rnd 1	type Standard	result 1	date 2019-10-05	rnd 2	type Standard	result 1
		Opponent Zungu, L (Lwazi)				Opponent Murugan, A (Aliyah)
3	2	Tournament 2019 King Cetshwayo Girls Chess Festival				Tournament 2019 King Cetshwayo Girls Chess Festival
		date 2019-08-09	rnd 2	type Standard	result 1	date 2019-08-09	rnd 3	type Standard	result 1
		Opponent Ndlazi, O (Owenkosi)				Opponent Sibiya, O (Onthatile)

#	Games	Start				End
1	3	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 5	type Rapid	result 1	date 2019-07-27	rnd 7	type Rapid	result 1
		Opponent Munien, J (Josiah)				Opponent Naidu, U (Uzziel)
2	1	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 3	type Rapid	result 1	date 2019-07-27	rnd 3	type Rapid	result 1
		Opponent Suban, K (Kristiano)				Opponent Suban, K (Kristiano)
3	1	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 1	type Rapid	result 1	date 2019-07-27	rnd 1	type Rapid	result 1
		Opponent Stewart, JE (Julie)				Opponent Stewart, JE (Julie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2019 King Cetshwayo Winter				Tournament 2019 King Cetshwayo Winter
		date 2019-08-31	rnd 2	type Standard	result 1	date 2019-09-01	rnd 4	type Standard	result 1
		Opponent Vandayar, B (Breydon)				Opponent Murugan, L (Levi)
2	2	Tournament 2019 Umhlathuze Summer Championship				Tournament 2019 Umhlathuze Summer Championship
		date 2019-10-05	rnd 1	type Standard	result 1	date 2019-10-05	rnd 2	type Standard	result 1
		Opponent Zungu, L (Lwazi)				Opponent Murugan, A (Aliyah)
3	2	Tournament 2019 King Cetshwayo Girls Chess Festival				Tournament 2019 King Cetshwayo Girls Chess Festival
		date 2019-08-09	rnd 2	type Standard	result 1	date 2019-08-09	rnd 3	type Standard	result 1
		Opponent Ndlazi, O (Owenkosi)				Opponent Sibiya, O (Onthatile)

#	Games	Start				End
1	3	Tournament 2019 King Cetshwayo Winter				Tournament 2019 King Cetshwayo Winter
		date 2019-08-31	rnd 2	type Standard	result 1	date 2019-09-01	rnd 4	type Standard	result 1
		Opponent Vandayar, B (Breydon)				Opponent Murugan, L (Levi)
2	2	Tournament 2019 Umhlathuze Summer Championship				Tournament 2019 Umhlathuze Summer Championship
		date 2019-10-05	rnd 1	type Standard	result 1	date 2019-10-05	rnd 2	type Standard	result 1
		Opponent Zungu, L (Lwazi)				Opponent Murugan, A (Aliyah)
3	2	Tournament 2019 King Cetshwayo Girls Chess Festival				Tournament 2019 King Cetshwayo Girls Chess Festival
		date 2019-08-09	rnd 2	type Standard	result 1	date 2019-08-09	rnd 3	type Standard	result 1
		Opponent Ndlazi, O (Owenkosi)				Opponent Sibiya, O (Onthatile)

#	Games	Start				End
1	1	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 7	type Rapid	result 1	date 2019-07-27	rnd 7	type Rapid	result 1
		Opponent Naidu, U (Uzziel)				Opponent Naidu, U (Uzziel)
2	1	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 5	type Rapid	result 1	date 2019-07-27	rnd 5	type Rapid	result 1
		Opponent Munien, J (Josiah)				Opponent Munien, J (Josiah)
3	1	Tournament 2019 King Cetswayo Fun				Tournament 2019 King Cetswayo Fun
		date 2019-07-27	rnd 3	type Rapid	result 1	date 2019-07-27	rnd 3	type Rapid	result 1
		Opponent Suban, K (Kristiano)				Opponent Suban, K (Kristiano)

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	Munien ,J (Josiah)	2	1	0	1	0	-425	1	1	425	0	0	0
1	Munien ,J (Josiah)	2	1195.8	1195.8	1	1200	770.8	1	1200	1620.8	0	0	0
2	Murugan ,L (Levi)	2	1.5	212.5	1	1	425	1	0.5	0	0	0	0
2	Murugan ,L (Levi)	2	1201.2	1413.7	1	1200	1626.2	1	1200	1201.2	0	0	0
3	Budhram ,K (Kaylee)	2	0	-425	1	0	-425	1	0	-425	0	0	0
3	Budhram ,K (Kaylee)	2	1141.6	716.6	1	1140.4	716.6	1	1200	716.6	0	0	0
4	Stewart ,JE (Julie Eliisa)	2	2	425	1	1	425	1	1	425	0	0	0
4	Stewart ,JE (Julie Eliisa)	2	1170.7	1595.7	1	1180	1595.7	1	1200	1595.7	0	0	0
5	Sibiya ,O (Onthatile)	1	1	425	1	1	425	0	0	0	0	0	0
5	Sibiya ,O (Onthatile)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Vandayar ,B (Breydon)	1	1	425	1	1	425	0	0	0	0	0	0
6	Vandayar ,B (Breydon)	1	1119.3	1544.3	1	1105.6	1544.3	0	0	0	0	0	0
7	Ngcobo ,S (Sibulelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Ngcobo ,S (Sibulelo)	1	1344.2	919.2	1	1322.2	919.2	0	0	0	0	0	0
8	Potas ,H (Hayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Potas ,H (Hayden)	1	1309.4	884.4	1	1310.9	884.4	0	0	0	0	0	0
9	Kgosi ,LT (Lemogang)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Kgosi ,LT (Lemogang)	1	1152.2	727.2	1	1145.2	727.2	0	0	0	0	0	0
10	Zungu ,L (Lwazi)	1	1	425	1	1	425	0	0	0	0	0	0
10	Zungu ,L (Lwazi)	1	1103.3	1528.3	1	1085.6	1528.3	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

John, S (Sophia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms