Chess South Africa Ratings Database

PLAYER PAGE

Personal

He, Z (Zonghan)

Chess SA id

1120150398

FIDE id

Date of birth

2012-04-03 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-23

Personal details last changed

1900-01-01

Junior GPX Games

33.7

Junior GPX Points

1168.4

Item	Main	Standard	Rapid	Blitz
Rating	1355.6	1287.5	1332.4	1193.3
Raw rating	1355.6	1287.5	1332.4	1193.3
Weighted rating	1311.3	1249.9	1305.4	1192.4
Weighted performance	1275.1	1229.2	1295.3	0
Floor	874.8	787.5	890.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	132.9	146.4	137.3	167.4
Highest rating	1374.8 2025-04-01	1287.5 2025-09-01	1390.2 2025-04-01	1200 2018-10-01
Highest raw rating	1374.8 2025-04-01	1287.5 2025-09-01	1390.2 2025-04-01	1200 2024-03-01
Highest weighted rating	1305.2 2025-09-01	1244.8 2025-09-01	1301.2 2025-09-01	1200 2018-10-01
Highest weighted performance	1374.8 2025-04-01	1270.1 2024-02-01	1385.6 2023-05-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1355.6	1287.5	1332.4	1193.3
Analysis
Rating	1355.6	1287.5	1332.4	1193.3
Raw rating	1355.6	1287.5	1332.4	1193.3
Weighted rating	1311.3	1249.9	1305.4
Weighted performance	1275.1	1229.2	1295.3
K-factor	36	36	36	36
Floor	874.8	787.5	890.2	700
Max/Min rating change allowed	132.9	146.4	137.3	167.4
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	1355.6	1287.5	1332.4	1193.3
New weighted rating	1317	1254.6	1309.4	1192.3
New weighted performance	1274.7	1228.8	1294.9	0
Temp new rating	1355.6	1287.5	1332.4	1193.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1355.6	1287.5	1332.4	1193.3
New K-factor	36	36	36	36
New floor	874.8	787.5	890.2	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	43	17	26	0
	74	20	47	7
	57	12	45	0
	0	0	0	0
	0	0	0	0
History	174	49	118	7

Games since
	Main 129	Standard 43		Rapid 79		Blitz 7
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2611		827		340
Male	2119		624		270
U14	453		149		63
U14 Male	338		101		43
Standard
	RSA		Province		Region
Overall	3188		902		369
Male	2495		643		274
U14	605		177		74
U14 Male	438		108		46
Rapid
	RSA		Province		Region
Overall	840		431		192
Male	696		353		168
U14	179		96		43
U14 Male	134		72		34
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	43	25	58.14	69.2	1300.7	1369.9
Standard	17	9.5	55.88	50	1276.8	1326.8
Rapid	26	15.5	59.62	81.7	1316.3	1398
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	174	88	50.57	4.9	1280.5	1285.4
Standard	49	23	46.94	-26	1289.1	1263
Rapid	118	62	52.54	21.6	1277	1298.7
Blitz	7	3	42.86	-60.7	1279.8	1219.1

Date	Main	Standard	Rapid	Blitz
2025-09-30	1355.6	1287.5	1332.4	1193.3
2025-09-01	1355.6	1287.5	1332.4	1193.3
2025-08-01	1337	1274.8	1301.3	1193.3
2025-07-01	1374.8	1274.8	1390.2	1193.3
2025-06-01	1374.8	1274.8	1390.2	1193.3
2025-05-01	1374.8	1274.8	1390.2	1193.3
2025-04-01	1374.8	1274.8	1390.2	1193.3
2025-03-01	1327.3	1274.8	1302.2	1193.3
2025-02-01	1276.2	1239.6	1255.6	1192.9
2025-01-01	1276.2	1239.6	1255.6	1183.4
2024-12-01	1256.8	1215.1	1255.6	1183.4
2024-11-01	1256.8	1215.1	1255.6	1183.4
2024-10-01	1267.1	1215.1	1281.5	1183.4
2024-09-01	1224.8	1215.1	1212.7	1183.4
2024-08-01	1221.4	1206.8	1212.7	1200
2024-07-01	1237.6	1206.8	1232.9	1200
2024-06-01	1247.6	1213.6	1232.9	1200
2024-08-01	1268	1213.6	1277.2	1200
2024-04-01	1268	1213.6	1277.2	1200
2024-03-01	1251.7	1213.6	1238	1200
2024-02-01	1219.4	1162.4	1237.3	1200
2024-01-01	1219.4	1162.4	1237.3	1200
2023-12-01	1219.4	1162.4	1237.3	1200
2023-11-01	1236.9	1170.4	1237.3	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	Curro Chess Open Rapid 2025 (U14)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
2	Cape Town Metro North Top Schools 2025 (U13)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
3	4th Curro Durbanville Rapid Open 2025 (Intermediate)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	2.5	Yes	Analysis
4	Steinitz Festival 2025 (U14)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	5.5	Yes	Analysis
5	Cape of Good Hope Open 2025 (Intermediate)	2025-02-22	2025-02-23	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
6	Laerskool Welgemoed Rapid 2025 (U14)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
7	CT Metro North Schools Chess Individual Trials 2025 (U13 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Curro Chess Open Rapid 2025 (U14)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
2	Cape Town Metro North Top Schools 2025 (U13)	2025-08-01	2025-08-02	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
3	4th Curro Durbanville Rapid Open 2025 (Intermediate)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	2.5	Yes	Analysis
4	Steinitz Festival 2025 (U14)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	5.5	Yes	Analysis
5	Cape of Good Hope Open 2025 (Intermediate)	2025-02-22	2025-02-23	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
6	Laerskool Welgemoed Rapid 2025 (U14)	2025-02-15	2025-02-15	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
7	CT Metro North Schools Chess Individual Trials 2025 (U13 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
8	2nd Strategize To Win Round-Robin Tournament ACL 2024 (G)	2024-12-07	2024-12-07	Standard	Cape Town (WCT)	5	4	2.5	Yes	Analysis
9	Laerskool Welgemoed Rapid 2024 (U14)	2024-10-19	2024-10-19	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
10	CBC Rapid Chess Tournament 2024 (U12)	2024-09-14	2024-09-14	Rapid	Cape Town (WCT)	6	6	4.5	Yes	Analysis
11	2nd Young Minds Classic 2024 (Intermediate)	2024-08-10	2024-08-11	Standard	Cape Town (WCT)	5	5	1.5	Yes	Analysis
12	2nd Young Minds Classic 2024 (Blitz)	2024-08-09	2024-08-09	Blitz	Cape Town (WCT)	7	7	3	Yes	Analysis
13	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
14	Cape Town Chess Federation Closed Chess Championships 2024 (U14)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
15	Cape Town Junior League Finals 2024 (U13 Open B)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
16	Steinitz Chess Festival 2024 (U14)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
17	Cape Town Junior League - Qualifier 2 2024 (U13)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
18	Cape Town Open Rapid Chess Championship 2024 (U12)	2024-03-16	2024-03-16	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
19	North District School Trials 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
20	Cape of Good Hope Open Chess Tournament 2024 (U12)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
21	Kraaifontein Open 2023 (Intermediate)	2023-12-09	2023-12-10	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
22	Chas Everitt and MHI Attorneys Rapid 2023 (U12)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
23	Western Cape Closed Championship 2023 (U12)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
24	Curro Durbanville Chess Open Rapid 2023 (U12)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
25	CT Metro District North Top Schools Chess 2023 (U11 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	4	2	Yes	Analysis
26	GPCA Rapid 2023 (U12)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	7	4	Yes	Analysis
27	Steinitz Open 2023 (U12)	2023-05-27	2023-05-27	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
28	Cape Town Open 2023 (U12)	2023-03-25	2023-03-25	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
29	North District School Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
30	Laerskool Welgemoed Rapid 2023 (U12)	2023-02-11	2023-02-11	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Cape of Good Hope Open 2025				Tournament Steinitz Festival 2025
		date 2025-02-23	rnd 4	type Standard	result 1	date 2025-03-15	rnd 2	type Rapid	result 1
		Opponent Lando, H (Hlomla)				Opponent Calitz, S (Steyn)
2	5	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-09	rnd 5	type Standard	result 0.5	date 2025-02-15	rnd 3	type Rapid	result 1
		Opponent Silver, K (Kyle)				Opponent Vlok, A (Adiaan)
3	5	Tournament 2nd Young Minds Classic 2024				Tournament CBC Rapid Chess Tournament 2024
		date 2024-08-11	rnd 5	type Standard	result 0.5	date 2024-09-14	rnd 4	type Rapid	result 0.5
		Opponent Sher, E (Evan)				Opponent Bowman, L (Lian)

#	Games	Start				End
1	4	Tournament Cape of Good Hope Open 2025				Tournament Cape Town Metro North Top Schools 2025
		date 2025-02-23	rnd 4	type Standard	result 1	date 2025-08-01	rnd 1	type Standard	result 1
		Opponent Lando, H (Hlomla)				Opponent Petersen, A (Aneeka)
2	3	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-09	rnd 5	type Standard	result 0.5	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Silver, K (Kyle)				Opponent Hume, L (Liam)
3	3	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Strategize To Win Round-Robin Tournament ACL 2024
		date 2024-08-11	rnd 5	type Standard	result 0.5	date 2024-12-07	rnd 2	type Standard	result 0.5
		Opponent Sher, E (Evan)				Opponent Dubbeld, B (Benjamin)

#	Games	Start				End
1	6	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament CBC Rapid Chess Tournament 2024
		date 2024-07-13	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 4	type Rapid	result 0.5
		Opponent Mboyisa, A (Ayanda)				Opponent Bowman, L (Lian)
2	4	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 3	type Rapid	result 0.5	date 2025-08-23	rnd 6	type Rapid	result 1
		Opponent Kidunda, N (Niarora)				Opponent Smith, T (Tyler)
3	4	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 4	type Rapid	result 1	date 2025-03-15	rnd 7	type Rapid	result 1
		Opponent Black, C (Caleb)				Opponent Mputing, T (Thando)

#	Games	Start				End
1	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 6	type Blitz	result 1	date 2024-08-09	rnd 6	type Blitz	result 1
		Opponent Crawford, H (Harrison)				Opponent Crawford, H (Harrison)
2	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 4	type Blitz	result 1	date 2024-08-09	rnd 4	type Blitz	result 1
		Opponent Chifamba, A (Anashe)				Opponent Chifamba, A (Anashe)
3	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 1	type Blitz	result 1	date 2024-08-09	rnd 1	type Blitz	result 1
		Opponent Mutswiri, M (Mufarowashe)				Opponent Mutswiri, M (Mufarowashe)

#	Games	Start				End
1	4	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament Laerskool Welgemoed Rapid 2025
		date 2025-02-09	rnd 6	type Standard	result 1	date 2025-02-15	rnd 3	type Rapid	result 1
		Opponent Wang, Z (Zi Ang)				Opponent Vlok, A (Adiaan)
2	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Naidoo, K (Kailash)				Opponent Zenda, K (Khumo)
3	4	Tournament Laerskool Welgemoed Rapid 2023				Tournament Cape Town Open 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-03-25	rnd 2	type Rapid	result 1
		Opponent Tesselaar, M (Mc)				Opponent Liu, A (Amy)

#	Games	Start				End
1	2	Tournament Cape of Good Hope Open 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-23	rnd 4	type Standard	result 1	date 2025-02-23	rnd 5	type Standard	result 1
		Opponent Lando, H (Hlomla)				Opponent Lee, S (Samsonisa)
2	2	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-09	rnd 6	type Standard	result 1	date 2025-02-22	rnd 1	type Standard	result 1
		Opponent Wang, Z (Zi Ang)				Opponent Hume, L (Liam)
3	2	Tournament 2nd Strategize To Win Round-Robin Tournament ACL 2024				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2024-12-07	rnd 5	type Standard	result 1	date 2025-02-08	rnd 1	type Standard	result 1
		Opponent Shapiro, H (Hannah)				Opponent Botha, J (Jason)

#	Games	Start				End
1	5	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament CBC Rapid Chess Tournament 2024
		date 2024-07-13	rnd 5	type Rapid	result 1	date 2024-09-14	rnd 3	type Rapid	result 1
		Opponent Mboyisa, A (Ayanda)				Opponent Ndou, M (Moses)
2	4	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 5	type Rapid	result 1
		Opponent Naidoo, K (Kailash)				Opponent Zenda, K (Khumo)
3	4	Tournament Laerskool Welgemoed Rapid 2023				Tournament Cape Town Open 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-03-25	rnd 2	type Rapid	result 1
		Opponent Tesselaar, M (Mc)				Opponent Liu, A (Amy)

#	Games	Start				End
1	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 6	type Blitz	result 1	date 2024-08-09	rnd 6	type Blitz	result 1
		Opponent Crawford, H (Harrison)				Opponent Crawford, H (Harrison)
2	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 4	type Blitz	result 1	date 2024-08-09	rnd 4	type Blitz	result 1
		Opponent Chifamba, A (Anashe)				Opponent Chifamba, A (Anashe)
3	1	Tournament 2nd Young Minds Classic 2024				Tournament 2nd Young Minds Classic 2024
		date 2024-08-09	rnd 1	type Blitz	result 1	date 2024-08-09	rnd 1	type Blitz	result 1
		Opponent Mutswiri, M (Mufarowashe)				Opponent Mutswiri, M (Mufarowashe)

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	Sher ,J (Jonah)	5	0.5	-340	1	0	-425	4	0.5	-318.8	0	0	0
1	Sher ,J (Jonah)	5	1273.3	933.3	1	1359.7	848.3	4	1284.8	954.5	0	0	0
2	Wilson ,EM (Emlyn Marissa)	4	1	-212.5	3	1	-141.7	1	0	-425	0	0	0
2	Wilson ,EM (Emlyn Marissa)	4	1376.6	1164.1	3	1344	1234.9	1	1315.4	951.6	0	0	0
3	Wang ,Z (Zi Ang)	3	2	141.7	2	1	0	1	1	425	0	0	0
3	Wang ,Z (Zi Ang)	3	1200.6	1342.3	2	1178.1	1200.6	1	1200	1625.6	0	0	0
4	Damane ,L (Lukhanyo)	3	0.5	-283.3	1	0.5	0	2	0	-425	0	0	0
4	Damane ,L (Lukhanyo)	3	1324.7	1041.3	1	1276.8	1324.7	2	1326.5	899.7	0	0	0
5	De Villiers ,C (Christiaan)	3	0	-425	1	0	-425	2	0	-425	0	0	0
5	De Villiers ,C (Christiaan)	3	1451.6	1026.6	1	1408.2	1026.6	2	1464.2	1026.6	0	0	0
6	Weideman ,J (Janko)	3	0	-425	1	0	-425	2	0	-425	0	0	0
6	Weideman ,J (Janko)	3	1641.6	1216.6	1	1613.2	1216.6	2	1498.1	1216.6	0	0	0
7	Waldeck ,A (Aaron)	3	2.5	283.3	1	1	425	2	1.5	212.5	0	0	0
7	Waldeck ,A (Aaron)	3	1345.7	1629	1	1239.2	1770.7	2	1398.4	1558.2	0	0	0
8	Mputing ,T (Thando)	3	3	425	0	0	0	3	3	425	0	0	0
8	Mputing ,T (Thando)	3	1240.1	1665.1	0	0	0	3	1280.6	1665.1	0	0	0
9	Fourie ,R (Ruan)	3	0	-425	0	0	0	3	0	-425	0	0	0
9	Fourie ,R (Ruan)	3	1344.5	919.5	0	0	0	3	1405.4	919.5	0	0	0
10	Calitz ,S (Steyn)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
10	Calitz ,S (Steyn)	3	1291.8	1150.2	0	0	0	3	1314.3	1150.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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He, Z (Zonghan)

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Top 10 opponents most often played

Norms