Chess South Africa Ratings Database

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Personal

Van Der Heyde, J (Jacob)

Chess SA id

1150157952

FIDE id

Date of birth

2015-11-01 (U12)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-31

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1300.9	1212.7	1342.2	1200
Raw rating	1300.9	1212.7	1342.2	1200
Weighted rating	1272.7	1210.4	1308.7	1200
Weighted performance	1087.9	0	1120.8	0
Floor	800.9	722.7	842.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	143.6	162.8	135.4	165.8
Highest rating	1300.9 2025-07-01	1302.5 2024-02-01	1375.7 2023-06-01	1200 2018-10-01
Highest raw rating	1300.9 2025-07-01	1222.7 2024-04-01	1342.2 2025-07-01	1200 2024-02-01
Highest weighted rating	1300.9 2024-10-01	1222.7 2024-09-01	1300.9 2025-08-01	1200 2018-10-01
Highest weighted performance	1298.1 2023-06-01	1302.5 2024-02-01	1375.7 2023-06-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1300.9	1212.7	1342.2	1200
Analysis
Rating	1300.9	1212.7	1342.2	1200
Raw rating	1300.9	1212.7	1342.2	1200
Weighted rating	1272.7	1210.4	1308.7
Weighted performance	1087.9	0	1120.8
K-factor	36	36	36	36
Floor	800.9	722.7	842.2	700
Max/Min rating change allowed	143.6	162.8	135.4	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	1300.9	1212.7	1342.2	1200
New weighted rating	1275.6	1210.6	1312.3	1200
New weighted performance	1087.5	0	1120.4	0
Temp new rating	1300.9	1212.7	1342.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1300.9	1212.7	1342.2	1200
New K-factor	36	36	36	36
New floor	800.9	722.7	842.2	700

Item	Main	Standard	Rapid
	0	0	0
	13	2	11
	27	14	13
	12	0	12
	0	0	0
	0	0	0
History	52	16	36

Games since
	Main 40	Standard 16		Rapid 24		Blitz 0
Gender	Male
Age group	U12
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3188		1039		409
Male	2513		763		318
U12	484		173		55
U12 Male	344		113		44
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	778		400		179
Male	646		328		157
U12	123		75		30
U12 Male	90		53		24
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	13	8	61.54	98.1	1310.1	1408.2
Standard	2	1	50	0	1302.9	1302.9
Rapid	11	7	63.64	115.9	1311.4	1427.3
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	52	28.5	54.81	40.9	1272.4	1313.3
Standard	16	7.5	46.88	-26.6	1263.4	1236.8
Rapid	36	21	58.33	70.8	1276.4	1347.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1300.9	1212.7	1342.2	1200
2025-09-01	1300.9	1212.7	1342.2	1200
2025-08-01	1300.9	1212.7	1342.2	1200
2025-07-01	1300.9	1212.7	1342.2	1200
2025-06-01	1271.4	1212.7	1305.4	1200
2025-05-01	1271.4	1212.7	1305.4	1200
2025-04-01	1271.4	1212.7	1305.4	1200
2025-03-01	1271.4	1212.7	1305.4	1200
2025-02-01	1251.4	1206.1	1282.8	1200
2025-01-01	1236.5	1193.9	1280.3	1200
2024-12-01	1236.5	1193.9	1280.3	1200
2024-11-01	1236.5	1193.9	1280.3	1200
2024-10-01	1246.4	1193.9	1301.2	1200
2024-09-01	1275.8	1222.7	1301.2	1200
2024-08-01	1275.8	1222.7	1301.2	1200
2024-07-01	1275.8	1222.7	1301.2	1200
2024-06-01	1275.8	1222.7	1301.2	1200
2024-08-01	1275.8	1222.7	1301.2	1200
2024-04-01	1275.8	1222.7	1301.2	1200
2024-03-01	1246.7	1220.2	1247.2	1200
2024-02-01	1244.4	1200	1270.6	1200
2024-01-01	1244.4	1200	1270.6	1200
2023-12-01	1244.4	1200	1270.6	1200
2023-11-01	1244.4	1200	1270.6	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 Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	5	4	Yes	Analysis
2	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
3	2025 District Central Schools Chess Individual Trials (U11 Open)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	2	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	5	4	Yes	Analysis
2	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
3	2025 District Central Schools Chess Individual Trials (U11 Open)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	2	1	Yes	Analysis
4	UCT Open Chess Championship 2024 (U10)	2024-10-12	2024-10-13	Rapid	Cape Town (WCT)	6	1	0	Yes	Analysis
5	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	3	1	Yes	Analysis
6	Cape Town Open Rapid Chess Championship 2024 (U10)	2024-03-16	2024-03-16	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
7	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Boys)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	2.5	Yes	Analysis
8	CT Metro Central District Schools Chess Individuals Trials 2024 (U9 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
9	Cape of Good Hope Open Chess Tournament 2024 (U10)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
10	Curro Durbanville Chess Open Rapid 2023 (U10)	2023-07-15	2023-07-15	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
11	GPCA Rapid 2023 (U10)	2023-06-24	2023-06-24	Rapid	Cape Town (WCT)	7	6	4	Yes	Analysis

#	Games	Start				End
1	5	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-07-15	rnd 5	type Rapid	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Chumpitaz Avila, J (Josef)				Opponent Wille, A (Alexander)
2	4	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 4	type Rapid	result 1	date 2023-06-24	rnd 7	type Rapid	result 1
		Opponent Sher, A (Anna)				Opponent Lambrechts, M (Madison)
3	3	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-23	rnd 4	type Rapid	result 1	date 2025-05-31	rnd 7	type Rapid	result 1
		Opponent Zilinkomo, L (Luthu)				Opponent Offord, J (Joshua)

#	Games	Start				End
1	3	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Zembete, S (Simphiwe)				Opponent Wille, A (Alexander)
2	1	Tournament 2025 District Central Schools Chess Individual Trials				Tournament 2025 District Central Schools Chess Individual Trials
		date 2025-01-31	rnd 1	type Standard	result 1	date 2025-01-31	rnd 1	type Standard	result 1
		Opponent Ndzena, L (Lakheka)				Opponent Ndzena, L (Lakheka)
3	1	Tournament CT League 2024				Tournament CT League 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Mlandu, A (Azingce)				Opponent Mlandu, A (Azingce)

#	Games	Start				End
1	4	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 4	type Rapid	result 1	date 2023-06-24	rnd 7	type Rapid	result 1
		Opponent Sher, A (Anna)				Opponent Lambrechts, M (Madison)
2	3	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-23	rnd 4	type Rapid	result 1	date 2025-05-31	rnd 7	type Rapid	result 1
		Opponent Zilinkomo, L (Luthu)				Opponent Offord, J (Joshua)
3	3	Tournament Cape Town Open Rapid Chess Championship 2024				Tournament Cape Town Open Rapid Chess Championship 2024
		date 2024-03-16	rnd 1	type Rapid	result 1	date 2024-03-16	rnd 3	type Rapid	result 1
		Opponent Musekiwa, T (Terisha)				Opponent Kirthan, V (Venya)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Curro Durbanville Chess Open Rapid 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-07-15	rnd 5	type Rapid	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Chumpitaz Avila, J (Josef)				Opponent Wille, A (Alexander)
2	4	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 4	type Rapid	result 1	date 2023-06-24	rnd 7	type Rapid	result 1
		Opponent Sher, A (Anna)				Opponent Lambrechts, M (Madison)
3	3	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-23	rnd 4	type Rapid	result 1	date 2025-05-31	rnd 7	type Rapid	result 1
		Opponent Zilinkomo, L (Luthu)				Opponent Offord, J (Joshua)

#	Games	Start				End
1	3	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Zembete, S (Simphiwe)				Opponent Wille, A (Alexander)
2	1	Tournament 2025 District Central Schools Chess Individual Trials				Tournament 2025 District Central Schools Chess Individual Trials
		date 2025-01-31	rnd 1	type Standard	result 1	date 2025-01-31	rnd 1	type Standard	result 1
		Opponent Ndzena, L (Lakheka)				Opponent Ndzena, L (Lakheka)
3	1	Tournament CT League 2024				Tournament CT League 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-08-03	rnd 4	type Standard	result 1
		Opponent Mlandu, A (Azingce)				Opponent Mlandu, A (Azingce)

#	Games	Start				End
1	4	Tournament GPCA Rapid 2023				Tournament GPCA Rapid 2023
		date 2023-06-24	rnd 4	type Rapid	result 1	date 2023-06-24	rnd 7	type Rapid	result 1
		Opponent Sher, A (Anna)				Opponent Lambrechts, M (Madison)
2	3	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-23	rnd 4	type Rapid	result 1	date 2025-05-31	rnd 7	type Rapid	result 1
		Opponent Zilinkomo, L (Luthu)				Opponent Offord, J (Joshua)
3	3	Tournament Cape Town Open Rapid Chess Championship 2024				Tournament Cape Town Open Rapid Chess Championship 2024
		date 2024-03-16	rnd 1	type Rapid	result 1	date 2024-03-16	rnd 3	type Rapid	result 1
		Opponent Musekiwa, T (Terisha)				Opponent Kirthan, V (Venya)

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	Van Der Merwe ,S (Schalk Wolf)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Van Der Merwe ,S (Schalk Wolf)	2	1502.3	1077.3	1	1472.2	1077.3	1	1674.5	1077.3	0	0	0
2	Baker ,A (Andrew)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Baker ,A (Andrew)	2	1346.2	921.2	1	1368.9	921.2	1	1331.7	921.2	0	0	0
3	Lin ,J (Junming)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
3	Lin ,J (Junming)	2	1253.5	1041	1	1276	1253.5	1	1252	828.5	0	0	0
4	Beukes ,B (Benjamin)	2	1	0	0	0	0	2	1	0	0	0	0
4	Beukes ,B (Benjamin)	2	1359.8	1359.8	0	0	0	2	1337.9	1359.8	0	0	0
5	Rogova ,E (Emilia)	2	1	0	0	0	0	2	1	0	0	0	0
5	Rogova ,E (Emilia)	2	1190.4	1190.4	0	0	0	2	1184.1	1190.4	0	0	0
6	Zwartz ,Z (Zeke)	2	2	425	0	0	0	2	2	425	0	0	0
6	Zwartz ,Z (Zeke)	2	1328.6	1753.6	0	0	0	2	1357.7	1753.6	0	0	0
7	Klopper ,B (Ben)	2	0	-425	0	0	0	2	0	-425	0	0	0
7	Klopper ,B (Ben)	2	1426.7	1001.7	0	0	0	2	1479.4	1001.7	0	0	0
8	Klopper ,E (Elbe)	2	2	425	0	0	0	2	2	425	0	0	0
8	Klopper ,E (Elbe)	2	1275.2	1700.2	0	0	0	2	1261.9	1700.2	0	0	0
9	Wille ,A (Alexander)	1	1	425	1	1	425	0	0	0	0	0	0
9	Wille ,A (Alexander)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Matilo ,M (Molebogeng)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Matilo ,M (Molebogeng)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Der Heyde, J (Jacob)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms