Chess South Africa Ratings Database

PLAYER PAGE

Personal

Yang, C (Chang-Ying)

Chess SA id

2100143765

FIDE id

Date of birth

2010-11-10 (U16)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1383.4

Item	Main	Standard	Rapid	Blitz
Rating	1318.6	1303.4	1233.2	1200
Raw rating	1318.6	1303.4	1233.2	1200
Weighted rating	1259.3	1251.1	1218.6	1200
Weighted performance	1290.6	0	0	0
Floor	825.7	809.7	733.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	140	143.1	158.2	165.8
Highest rating	1325.7 2025-05-05	1309.7 2025-05-05	1259.5 2024-09-01	1200 2018-10-01
Highest raw rating	1325.7 2025-05-05	1309.7 2025-05-05	1233.2 2024-10-01	1200 2024-03-01
Highest weighted rating	1325.7 2018-10-01	1244.9 2025-09-01	1233.2 2018-10-01	1200 2018-10-01
Highest weighted performance	1325.7 2025-05-05	1200 2024-03-01	1259.5 2024-09-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1318.6	1303.4	1233.2	1200
Analysis
Rating	1318.6	1303.4	1233.2	1200
Raw rating	1318.6	1303.4	1233.2	1200
Weighted rating	1259.3	1251.1	1218.6
Weighted performance	1290.6	0	0
K-factor	36	36	36	36
Floor	825.7	809.7	733.2	700
Max/Min rating change allowed	140	143.1	158.2	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	1318.6	1303.4	1233.2	1200
New weighted rating	1266.3	1256.9	1221	1200
New weighted performance	1290.1	0	0	0
Temp new rating	1318.6	1303.4	1233.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1318.6	1303.4	1233.2	1200
New K-factor	36	36	36	36
New floor	825.7	809.7	733.2	700

Item	Main	Standard	Rapid
	0	0	0
	22	22	0
	6	0	6
	6	0	6
	0	0	0
	0	0	0
History	34	22	12

Games since
	Main 34	Standard 22		Rapid 12		Blitz 0
Gender	Female
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	22	12	54.55	38.6	1334.6	1373.2
Standard	22	12	54.55	38.6	1334.6	1373.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	34	18	52.94	25	1299.3	1324.3
Standard	22	12	54.55	38.6	1334.6	1373.2
Rapid	12	6	50	0	1234.7	1234.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1318.6	1303.4	1233.2	1200
2025-09-01	1318.6	1303.4	1233.2	1200
2025-08-01	1325.7	1309.7	1233.2	1200
2025-07-01	1325.7	1309.7	1233.2	1200
2025-06-01	1325.7	1309.7	1233.2	1200
2025-05-01	1325.7	1309.7	1233.2	1200
2025-04-01	1258.8	1253.7	1233.2	1200
2025-03-01	1238.5	1229.4	1233.2	1200
2025-02-01	1218.1	1200	1233.2	1200
2025-01-01	1218.1	1200	1233.2	1200
2024-12-01	1218.1	1200	1233.2	1200
2024-11-01	1218.1	1200	1233.2	1200
2024-10-01	1218.1	1200	1233.2	1200
2024-09-01	1183.8	1200	1166.8	1200
2024-08-01	1183.8	1200	1166.8	1200
2024-07-01	1183.8	1200	1166.8	1200
2024-06-01	1183.8	1200	1166.8	1200
2024-08-01	1183.8	1200	1166.8	1200
2024-04-01	1183.8	1200	1166.8	1200
2024-03-01	1183.8	1200	1166.8	1200
2024-02-01	1183.8	1200	1166.8	1200
2024-01-01	1183.8	1200	1166.8	1200
2023-12-01	1183.8	1200	1166.8	1200
2023-11-01	1183.8	1200	1166.8	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	Cape Town Metro North Top Schools 2025 (U15)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	2	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U15 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
4	CT Metro North Schools Chess Individual Trials 2025 (U15 Girls)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Metro North Top Schools 2025 (U15)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	4	2	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U15 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U15 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
4	CT Metro North Schools Chess Individual Trials 2025 (U15 Girls)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	CBC Rapid Chess Tournament 2024 (U14)	2024-09-14	2024-09-14	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
6	Chas Everitt and MHI Attorneys Rapid 2023 (U14)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
7	South African Open 2022 (U16)	2022-07-11	2022-07-13	Standard	Cape Town (WCT)	6	0	0	No	Analysis

#	Games	Start				End
1	5	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-04-26	rnd 3	type Standard	result 0.5
		Opponent Monk, A (Anastasia)				Opponent Erasmus, A (Anneke)
2	4	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament CBC Rapid Chess Tournament 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-09-14	rnd 3	type Rapid	result 0.5
		Opponent Chen, L (Lulu)				Opponent Mefire, H (Habiba)
3	3	Tournament CBC Rapid Chess Tournament 2024				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2024-09-14	rnd 5	type Rapid	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Ngubombi, L (Lingomso)				Opponent Januarie, M (Micherle)

#	Games	Start				End
1	5	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-04-26	rnd 3	type Standard	result 0.5
		Opponent Monk, A (Anastasia)				Opponent Erasmus, A (Anneke)
2	2	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 2	type Standard	result 0.5	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Rubusana, N (Nina)				Opponent Fairhurst, M (Micke)
3	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Naude, L (Lian)				Opponent Naude, L (Lian)

#	Games	Start				End
1	4	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament CBC Rapid Chess Tournament 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-09-14	rnd 3	type Rapid	result 0.5
		Opponent Chen, L (Lulu)				Opponent Mefire, H (Habiba)
2	2	Tournament CBC Rapid Chess Tournament 2024				Tournament CBC Rapid Chess Tournament 2024
		date 2024-09-14	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 6	type Rapid	result 1
		Opponent Ngubombi, L (Lingomso)				Opponent Mavhunga, T (Taffy)
3	1	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament Chas Everitt and MHI Attorneys Rapid 2023
		date 2023-11-04	rnd 1	type Rapid	result 1	date 2023-11-04	rnd 1	type Rapid	result 1
		Opponent Knight, Z (Zachary)				Opponent Knight, Z (Zachary)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-04-26	rnd 2	type Standard	result 1
		Opponent Monk, A (Anastasia)				Opponent Sikhondo, N (Nevilene)
2	3	Tournament CBC Rapid Chess Tournament 2024				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2024-09-14	rnd 5	type Rapid	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Ngubombi, L (Lingomso)				Opponent Januarie, M (Micherle)
3	2	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament CBC Rapid Chess Tournament 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-09-14	rnd 1	type Rapid	result 1
		Opponent Chen, L (Lulu)				Opponent Muller, H (Helgard)

#	Games	Start				End
1	4	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-04-26	rnd 2	type Standard	result 1
		Opponent Monk, A (Anastasia)				Opponent Sikhondo, N (Nevilene)
2	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 5	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 1
		Opponent Naude, L (Lian)				Opponent Naude, L (Lian)
3	1	Tournament Cape Town Metro North Top Schools 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-08-02	rnd 3	type Standard	result 1	date 2025-08-02	rnd 3	type Standard	result 1
		Opponent Vosloo, R (Ruan)				Opponent Vosloo, R (Ruan)

#	Games	Start				End
1	2	Tournament CBC Rapid Chess Tournament 2024				Tournament CBC Rapid Chess Tournament 2024
		date 2024-09-14	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 6	type Rapid	result 1
		Opponent Ngubombi, L (Lingomso)				Opponent Mavhunga, T (Taffy)
2	2	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament CBC Rapid Chess Tournament 2024
		date 2023-11-04	rnd 6	type Rapid	result 1	date 2024-09-14	rnd 1	type Rapid	result 1
		Opponent Chen, L (Lulu)				Opponent Muller, H (Helgard)
3	1	Tournament Chas Everitt and MHI Attorneys Rapid 2023				Tournament Chas Everitt and MHI Attorneys Rapid 2023
		date 2023-11-04	rnd 1	type Rapid	result 1	date 2023-11-04	rnd 1	type Rapid	result 1
		Opponent Knight, Z (Zachary)				Opponent Knight, Z (Zachary)

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	Lugwayi ,L (Liyabona)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Lugwayi ,L (Liyabona)	1	1227.2	802.2	1	1234.3	802.2	0	0	0	0	0	0
2	Naude ,L (Lian)	1	1	425	1	1	425	0	0	0	0	0	0
2	Naude ,L (Lian)	1	1217.7	1642.7	1	1226.2	1642.7	0	0	0	0	0	0
3	Claassen ,H (Hayley)	1	1	425	1	1	425	0	0	0	0	0	0
3	Claassen ,H (Hayley)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Januarie ,M (Micherle)	1	1	425	1	1	425	0	0	0	0	0	0
4	Januarie ,M (Micherle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Ndulue ,C (Chidera)	1	1	425	1	1	425	0	0	0	0	0	0
5	Ndulue ,C (Chidera)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Van Der Westhuizen ,Y (Yaqeen)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Van Der Westhuizen ,Y (Yaqeen)	1	1199.7	774.7	1	1199.7	774.7	0	0	0	0	0	0
7	Linde ,M (Morgan)	1	1	425	1	1	425	0	0	0	0	0	0
7	Linde ,M (Morgan)	1	1448.1	1873.1	1	1400.6	1873.1	0	0	0	0	0	0
8	Erasmus ,A (Anneke)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Erasmus ,A (Anneke)	1	1456.4	1456.4	1	1454.5	1456.4	0	0	0	0	0	0
9	Ngidi ,N (Ndumiso)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Ngidi ,N (Ndumiso)	1	1553.3	1128.3	1	1533.8	1128.3	0	0	0	0	0	0
10	Snyman ,MM (Mila Marie)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Snyman ,MM (Mila Marie)	1	1555.6	1130.6	1	1561.4	1130.6	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

Yang, C (Chang-Ying)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms