Chess South Africa Ratings Database

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Personal

Sun, H (Haojia)

Chess SA id

2130191696

FIDE id

Date of birth

2013-10-10 (U14)

Gender

Female

Region

Cape Town (WCT)

Citizen

CHN

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

2025-09-29

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1641.2	1640.8	1520.6	1207.2
Raw rating	1641.2	1640.8	1520.6	1207.2
Weighted rating	1581.8	1563.6	1500.1	1207.1
Weighted performance	1557.8	1551.8	1360.1	0
Floor	1178.6	1190.4	1049.2	707.2
K-factor	28	28	32	36
Min/Max rating change allowed	88.4	88.5	105	164.1
Highest rating	1678.6 2025-09-01	1746.4 2024-02-01	1549.2 2024-12-01	1235.8 2024-01-01
Highest raw rating	1678.6 2025-09-01	1690.4 2025-09-01	1549.2 2024-12-01	1207.2 2024-02-01
Highest weighted rating	1569.5 2025-09-30	1549.5 2025-09-30	1475.6 2025-08-01	1206.8 2025-08-01
Highest weighted performance	1676.9 2025-06-01	1746.4 2024-02-01	1538.5 2024-05-01	1235.8 2024-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1641.2	1640.8	1520.6	1207.2
Analysis
Rating	1641.2	1640.8	1520.6	1207.2
Raw rating	1641.2	1640.8	1520.6	1207.2
Weighted rating	1581.8	1563.6	1500.1
Weighted performance	1557.8	1551.8	1360.1
K-factor	28	28	32	36
Floor	1178.6	1190.4	1049.2	707.2
Max/Min rating change allowed	88.4	88.5	105	164.1
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	1641.2	1640.8	1520.6	1207.2
New weighted rating	1592.6	1576.3	1506.1	1207.2
New weighted performance	1548.3	1542.3	1351.1	0
Temp new rating	1641.2	1640.8	1520.6	1207.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1641.2	1640.8	1520.6	1207.2
New K-factor	28	28	32	36
New floor	1178.6	1190.4	1049.2	707.2

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	55	43	12	0
	77	34	34	9
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	132	77	46	9

Games since
	Main 132	Standard 77		Rapid 46		Blitz 9
Gender	F
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	481		145		98
F	2		1		1
U14	44		12		7
U14 F	1		1		1
Standard
	RSA		Province		Region
Overall	472		133		94
F	2		1		1
U14	43		12		7
U14 F	1		1		1
Rapid
	RSA		Province		Region
Overall	193		89		47
F	2		1		1
U14	23		12		4
U14 F	1		1		1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
F	-1		-1		-1
U14	-1		-1		-1
U14 F	-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	55	42.5	77.27	231.8	1386.5	1618.4
Standard	43	34.5	80.23	257	1404.4	1661.4
Rapid	12	8	66.67	141.7	1322.4	1464.1
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	132	98.5	74.62	209.3	1361.9	1571.2
Standard	77	59.5	77.27	231.8	1391.9	1623.8
Rapid	46	35.5	77.17	231	1304.2	1535.1
Blitz	9	3.5	38.89	-94.4	1399.6	1305.2

Date	Main	Standard	Rapid	Blitz
2025-11-01	1641.2	1640.8	1520.6	1207.2
2025-09-30	1641.2	1640.8	1520.6	1207.2
2025-09-01	1678.6	1690.4	1520.6	1207.2
2025-08-01	1676.9	1689	1520.6	1207.2
2025-07-01	1676.9	1689	1520.6	1207.2
2025-06-01	1676.9	1689	1520.6	1207.2
2025-05-01	1645.8	1641.7	1520.6	1207.2
2025-04-01	1587.5	1577.3	1520.6	1207.2
2025-03-01	1549.8	1521	1520.6	1207.2
2025-02-01	1534.2	1489.1	1521.1	1207.2
2025-01-01	1549.4	1489.1	1549.2	1207.2
2024-12-01	1549.4	1489.1	1549.2	1207.2
2024-11-01	1532.9	1489.1	1520.7	1207.2
2024-10-01	1532.9	1489.1	1520.7	1207.2
2024-09-01	1475	1415.5	1520.7	1207.2
2024-08-01	1475	1415.5	1520.7	1207.2
2024-07-01	1457	1415.5	1405.9	1207.2
2024-09-01	1507.2	1461.3	1405.9	1207.2
2024-05-01	1418.5	1367	1328.5	1207.2
2024-04-01	1418.5	1367	1328.5	1207.2
2024-03-01	1322.8	1316.6	1229.5	1207.2
2024-02-01	1206.8	1200	1200	1207.2
2024-01-01	1200	1200	1200	1200
2023-12-01	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	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	2.5	Yes	Analysis
2	Cape Town Metro Top Schools District Central 2025 (U13)	2025-08-02	2025-08-02	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	5.5	Yes	Analysis
4	South African Junior Closed Chess Championships 2025 (U12 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	7	Yes	Analysis
5	Western Cape Closed 2025 (U14)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
6	CT Metro Schools Individual Closed 2025 (U13 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
7	Laerskool Welgemoed Rapid 2025 (U14)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
8	2025 District Central Schools Chess Individual Trials (U13 Girls)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
9	2025 Kraaifontein Open Chess Championships (Rapid U14)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	6	2.5	Yes	Analysis
2	Cape Town Metro Top Schools District Central 2025 (U13)	2025-08-02	2025-08-02	Standard	Cape Town (WCT)	5	4	4	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	5.5	Yes	Analysis
4	South African Junior Closed Chess Championships 2025 (U12 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	7	Yes	Analysis
5	Western Cape Closed 2025 (U14)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
6	CT Metro Schools Individual Closed 2025 (U13 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
7	Laerskool Welgemoed Rapid 2025 (U14)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
8	2025 District Central Schools Chess Individual Trials (U13 Girls)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	5.5	Yes	Analysis
9	2025 Kraaifontein Open Chess Championships (Rapid U14)	2025-01-04	2025-01-04	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
10	Chess Challengers Championship 2024 (U13)	2024-11-23	2024-11-23	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
11	Western Cape Top Schools Championship 2024 (U13 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	5.5	Yes	Analysis
12	CT Metro Central District Top Schools 2024 (U13 Mixed)	2024-07-26	2024-07-26	Rapid	Cape Town (WCT)	5	5	5	Yes	Analysis
13	Cape Town Chess Federation Closed Chess Championships 2024 (C)	2024-06-15	2024-06-17	Standard	Cape Town (WCT)	6	5	1.5	Yes	Analysis
14	PNPS Chess Challengers 2024 (U13)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
15	Steinitz Chess Festival 2024 (Open Rapid)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
16	Western Cape PS Individuals Championship 2024 (U11 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	5.5	Yes	Analysis
17	Cape Town Open Chess Championship 2024 (Intermediate)	2024-03-16	2024-03-17	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
18	Chas Everitt and MHI Attorneys Rapid 2024 (U12)	2024-03-09	2024-03-09	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
19	Cape Town Metro Schools Chess Closed Individuals 2024 (U11 Girls)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
20	CT Metro Central District Schools Chess Individuals Trials 2024 (U11 Girls)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
21	Cape of Good Hope Open Chess Tournament 2024 (U12)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	5	3	Yes	Analysis
22	Cape Town Chess Club Annual Blitz Championship 2024	2024-01-07	2024-01-07	Blitz	Cape Town (WCT)	9	9	3.5	Yes	Analysis

#	Games	Start				End
1	20	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament 2025 Kraaifontein Open Chess Championships
		date 2024-06-17	rnd 5	type Standard	result 1	date 2025-01-04	rnd 1	type Rapid	result 1
		Opponent Kirthan, V (Vajra)				Opponent Haig-Smith, N (Nathan)
2	11	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-05-17	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Venter, D (Danelize)				Opponent Botma, P (Phillip)
3	10	Tournament 2025 Kraaifontein Open Chess Championships				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-01-04	rnd 5	type Rapid	result 1	date 2025-02-15	rnd 2	type Rapid	result 1
		Opponent Tyhalibhongo, G (Gift)				Opponent Du Preez, A (Alet)

#	Games	Start				End
1	18	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament CT Metro Schools Individual Closed 2025
		date 2024-06-17	rnd 5	type Standard	result 1	date 2025-03-02	rnd 4	type Standard	result 1
		Opponent Kirthan, V (Vajra)				Opponent Mowlana, K (Khaleela)
2	11	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-05-17	rnd 1	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Venter, D (Danelize)				Opponent Botma, P (Phillip)
3	10	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-03-03	rnd 5	type Standard	result 1
		Opponent Mashua, M (Maisha)				Opponent Walters, N (Nicola)

#	Games	Start				End
1	19	Tournament Steinitz Chess Festival 2024				Tournament 2025 Kraaifontein Open Chess Championships
		date 2024-05-11	rnd 6	type Rapid	result 0.5	date 2025-01-04	rnd 1	type Rapid	result 1
		Opponent Koetser, J (Joshua)				Opponent Haig-Smith, N (Nathan)
2	7	Tournament Cape of Good Hope Open Chess Tournament 2024				Tournament Chas Everitt and MHI Attorneys Rapid 2024
		date 2024-02-17	rnd 5	type Rapid	result 1	date 2024-03-09	rnd 5	type Rapid	result 1
		Opponent He, Z (Zonghan)				Opponent Calitz, S (Steyn)
3	4	Tournament 2025 Kraaifontein Open Chess Championships				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-01-04	rnd 5	type Rapid	result 1	date 2025-02-15	rnd 2	type Rapid	result 1
		Opponent Tyhalibhongo, G (Gift)				Opponent Du Preez, A (Alet)

#	Games	Start				End
1	1	Tournament Cape Town Chess Club Annual Blitz Championship 2024				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2024-01-07	rnd 9	type Blitz	result 1	date 2024-01-07	rnd 9	type Blitz	result 1
		Opponent Fourie, J (Jannie)				Opponent Fourie, J (Jannie)
2	1	Tournament Cape Town Chess Club Annual Blitz Championship 2024				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2024-01-07	rnd 7	type Blitz	result 0.5	date 2024-01-07	rnd 7	type Blitz	result 0.5
		Opponent Mizen, D (Daniel)				Opponent Mizen, D (Daniel)
3	1	Tournament Cape Town Chess Club Annual Blitz Championship 2024				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2024-01-07	rnd 5	type Blitz	result 1	date 2024-01-07	rnd 5	type Blitz	result 1
		Opponent Webber, CPS (Colin)				Opponent Webber, CPS (Colin)

#	Games	Start				End
1	11	Tournament Western Cape Top Schools Championship 2024				Tournament 2025 Kraaifontein Open Chess Championships
		date 2024-08-30	rnd 3	type Standard	result 1	date 2025-01-04	rnd 1	type Rapid	result 1
		Opponent Snyman, MM (Mila Marie)				Opponent Haig-Smith, N (Nathan)
2	9	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Wilson, EM (Emlyn Marissa)				Opponent Botma, P (Phillip)
3	7	Tournament 2025 Kraaifontein Open Chess Championships				Tournament 2025 District Central Schools Chess Individual Trials
		date 2025-01-04	rnd 5	type Rapid	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Tyhalibhongo, G (Gift)				Opponent Nyengula, A (Ayole)

#	Games	Start				End
1	10	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament Cape Town Metro Schools Chess Closed Individuals 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-03-03	rnd 5	type Standard	result 1
		Opponent Mashua, M (Maisha)				Opponent Walters, N (Nicola)
2	9	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Wilson, EM (Emlyn Marissa)				Opponent Botma, P (Phillip)
3	9	Tournament Western Cape Top Schools Championship 2024				Tournament 2025 District Central Schools Chess Individual Trials
		date 2024-08-30	rnd 3	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Snyman, MM (Mila Marie)				Opponent Nyengula, A (Ayole)

#	Games	Start				End
1	18	Tournament PNPS Chess Challengers 2024				Tournament 2025 Kraaifontein Open Chess Championships
		date 2024-05-18	rnd 1	type Rapid	result 1	date 2025-01-04	rnd 1	type Rapid	result 1
		Opponent Gonera, R (Rufaro)				Opponent Haig-Smith, N (Nathan)
2	7	Tournament Cape of Good Hope Open Chess Tournament 2024				Tournament Chas Everitt and MHI Attorneys Rapid 2024
		date 2024-02-17	rnd 5	type Rapid	result 1	date 2024-03-09	rnd 5	type Rapid	result 1
		Opponent He, Z (Zonghan)				Opponent Calitz, S (Steyn)
3	4	Tournament 2025 Kraaifontein Open Chess Championships				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-01-04	rnd 5	type Rapid	result 1	date 2025-02-15	rnd 2	type Rapid	result 1
		Opponent Tyhalibhongo, G (Gift)				Opponent Du Preez, A (Alet)

#	Games	Start				End
1	1	Tournament Cape Town Chess Club Annual Blitz Championship 2024				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2024-01-07	rnd 9	type Blitz	result 1	date 2024-01-07	rnd 9	type Blitz	result 1
		Opponent Fourie, J (Jannie)				Opponent Fourie, J (Jannie)
2	1	Tournament Cape Town Chess Club Annual Blitz Championship 2024				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2024-01-07	rnd 5	type Blitz	result 1	date 2024-01-07	rnd 5	type Blitz	result 1
		Opponent Webber, CPS (Colin)				Opponent Webber, CPS (Colin)
3	1	Tournament Cape Town Chess Club Annual Blitz Championship 2024				Tournament Cape Town Chess Club Annual Blitz Championship 2024
		date 2024-01-07	rnd 2	type Blitz	result 1	date 2024-01-07	rnd 2	type Blitz	result 1
		Opponent Petersen, C (Cole)				Opponent Petersen, C (Cole)

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	Krige ,Z (Zara)	3	3	425	3	3	425	0	0	0	0	0	0
1	Krige ,Z (Zara)	3	1312.1	1737.1	3	1309.5	1737.1	0	0	0	0	0	0
2	Mowlana ,K (Khaleela)	3	3	425	3	3	425	0	0	0	0	0	0
2	Mowlana ,K (Khaleela)	3	1389.7	1814.7	3	1405.5	1814.7	0	0	0	0	0	0
3	Xabadiya ,N (Nizibone)	3	0	-425	2	0	-425	1	0	-425	0	0	0
3	Xabadiya ,N (Nizibone)	3	1408.5	983.5	2	1443.4	983.5	1	1239.3	983.5	0	0	0
4	De Villiers ,C (Christiaan)	3	2	141.7	0	0	0	3	2	141.7	0	0	0
4	De Villiers ,C (Christiaan)	3	1432.4	1574.1	0	0	0	3	1453.2	1574.1	0	0	0
5	Greeff ,M (Mari)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Greeff ,M (Mari)	2	1619.5	1407	2	1652.1	1407	0	0	0	0	0	0
6	Pretorius ,M (Mia)	2	2	425	2	2	425	0	0	0	0	0	0
6	Pretorius ,M (Mia)	2	1451.8	1876.8	2	1433.9	1876.8	0	0	0	0	0	0
7	Kujinga ,T (Tawananyasha)	2	2	425	2	2	425	0	0	0	0	0	0
7	Kujinga ,T (Tawananyasha)	2	1512.2	1937.2	2	1456.3	1937.2	0	0	0	0	0	0
8	Thembela ,Z (Zanele)	2	2	425	2	2	425	0	0	0	0	0	0
8	Thembela ,Z (Zanele)	2	1157	1582	2	1185.2	1582	0	0	0	0	0	0
9	Abarder ,H (Hanaah)	2	2	425	2	2	425	0	0	0	0	0	0
9	Abarder ,H (Hanaah)	2	1449.5	1874.5	2	1464.4	1874.5	0	0	0	0	0	0
10	Rogov ,E (Evgenij)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Rogov ,E (Evgenij)	2	1457.9	1032.9	2	1367.7	1032.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Sun, H (Haojia)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms