Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Lange, Z (Zander)

Chess SA id

1080134729

FIDE id

Date of birth

2008-09-19 (U18)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1389.9

Item	Main	Standard	Rapid	Blitz
Rating	1189.6	1197.5	1122.9	1200
Raw rating	1189.6	1197.5	1122.9	1200
Weighted rating	1151.8	1156.1	1121.6	1200
Weighted performance	1097.5	1102.3	839.8	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.3	166.4	185.1	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1189.6	1197.5	1122.9	1200
Analysis
Rating	1189.6	1197.5	1122.9	1200
Raw rating	1189.6	1197.5	1122.9	1200
Weighted rating	1151.8	1156.1	1121.6
Weighted performance	1097.5	1102.3	839.8
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	168.3	166.4	185.1	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	1189.6	1197.5	1122.9	1200
New weighted rating	1155.5	1160.3	1121.6	1200
New weighted performance	1097.1	1101.8	839.4	0
Temp new rating	1189.6	1197.5	1122.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1189.6	1197.5	1122.9	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	10	10	0
	19	10	9
	20	10	10
	4	0	4
	9	4	5
History	62	34	28

Games since
	Main 29	Standard 20		Rapid 9		Blitz 0
Gender	Male
Age group	U18
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	10	6	60	85	1264	1349
Standard	10	6	60	85	1264	1349
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	62	25.5	41.13	-75.4	1224.9	1149.5
Standard	34	14	41.18	-75	1230.2	1155.2
Rapid	28	11.5	41.07	-75.9	1218.5	1142.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1189.6	1197.5	1122.9	1200
2025-09-01	1189.6	1197.5	1122.9	1200
2025-08-01	1189.6	1197.5	1122.9	1200
2025-07-01	1189.6	1197.5	1122.9	1200
2025-06-01	1173.7	1180.4	1122.9	1200
2025-05-01	1173.7	1180.4	1122.9	1200
2025-04-01	1173.7	1180.4	1122.9	1200
2025-03-01	1173.7	1180.4	1122.9	1200
2025-02-01	1121.7	1122	1122.4	1200
2025-01-01	1104.1	1107.2	1114.8	1200
2024-12-01	1104.1	1107.2	1114.8	1200
2024-11-01	1104.1	1107.2	1114.8	1200
2024-10-01	1104.1	1107.2	1114.8	1200
2024-09-01	1104.1	1107.2	1114.8	1200
2024-08-01	1104.1	1107.2	1114.8	1200
2024-07-01	1104.1	1107.2	1114.8	1200
2024-06-01	1104.1	1107.2	1114.8	1200
2024-08-01	1136.8	1122	1141.6	1200
2024-04-01	1158.4	1144	1141.6	1200
2024-03-01	1146	1144	1132.4	1200
2024-02-01	1146	1144	1132.4	1200
2024-01-01	1146	1144	1132.4	1200
2023-12-01	1146	1144	1132.4	1200
2023-11-01	1146	1144	1132.4	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	Ekurhuleni North School District Finals 2025 (U18 Boys)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
2	Benoni High School Cluster 15Feb 2025 (U18 Boys)	2025-02-15	2025-02-15	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Ekurhuleni North School District Finals 2025 (U18 Boys)	2025-06-14	2025-06-14	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
2	Benoni High School Cluster 15Feb 2025 (U18 Boys)	2025-02-15	2025-02-15	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
3	Ekurhuleni North High School Individuals 2024 (U18 Boys)	2024-05-24	2024-05-24	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
4	Benoni Cluster High Schools Teams 2024 (U19)	2024-05-11	2024-05-11	Rapid	Ekurhuleni (GE)	5	4	1	Yes	Analysis
5	Westwood Open 2024 (A)	2024-04-13	2024-04-13	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
6	Benoni High Schools Cluster Individuals 2024 (U18 Boys)	2024-03-16	2024-03-16	Rapid	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
7	2023 Gauteng Top Schools (U17 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
8	Ekurhuleni North School Teams 2023 (U17)	2023-08-05	2023-08-05	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
9	Gauteng Open Arnold Classic 2023 (U16)	2023-05-19	2023-05-19	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
10	Benoni Cluster High School League 2023 (U15 Open)	2023-05-06	2023-05-06	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	Benoni Cluster HS Individuals 2022 (U15 Boys)	2022-05-07	2022-05-07	Rapid	Ekurhuleni (GE)	5	4	1.5	Yes	Analysis
12	Ekurhuleni North Schools District Finals 2021 (U13 Boys)	2021-09-11	2021-09-11	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
13	Ekurhuleni Chess Sochini Trials 2021 (Boys)	2021-09-04	2021-09-04	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 2	type Standard	result 0.5	date 2023-08-19	rnd 5	type Standard	result 0.5
		Opponent Sineko, S (Sihle)				Opponent Ngidi, B (Byron)
2	3	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 2	type Standard	result 1	date 2025-06-14	rnd 4	type Standard	result 1
		Opponent Lekoloane, A (Admire)				Opponent Moloi, S (Sibusiso)
3	3	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 1
		Opponent Ugburo, B (Bemigho)				Opponent Ngoqo, L (Limule)

#	Games	Start				End
1	4	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 2	type Standard	result 0.5	date 2023-08-19	rnd 5	type Standard	result 0.5
		Opponent Sineko, S (Sihle)				Opponent Ngidi, B (Byron)
2	3	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 2	type Standard	result 1	date 2025-06-14	rnd 4	type Standard	result 1
		Opponent Lekoloane, A (Admire)				Opponent Moloi, S (Sibusiso)
3	3	Tournament Benoni High School Cluster 15Feb 2025				Tournament Benoni High School Cluster 15Feb 2025
		date 2025-02-15	rnd 3	type Standard	result 1	date 2025-02-15	rnd 5	type Standard	result 1
		Opponent Ugburo, B (Bemigho)				Opponent Ngoqo, L (Limule)

#	Games	Start				End
1	3	Tournament Benoni Cluster HS Individuals 2022				Tournament Benoni Cluster High School League 2023
		date 2022-05-07	rnd 3	type Rapid	result 0.5	date 2023-05-06	rnd 1	type Rapid	result 1
		Opponent Bosman, P (Petri)				Opponent Mabuza, M (Manqoba)
2	2	Tournament Benoni High Schools Cluster Individuals 2024				Tournament Benoni High Schools Cluster Individuals 2024
		date 2024-03-16	rnd 4	type Rapid	result 1	date 2024-03-16	rnd 5	type Rapid	result 0.5
		Opponent Pakgadi, T (Tshiamo)				Opponent Lloyd, D (Dylan)
3	2	Tournament Benoni Cluster High School League 2023				Tournament Gauteng Open Arnold Classic 2023
		date 2023-05-06	rnd 5	type Rapid	result 1	date 2023-05-19	rnd 1	type Rapid	result 1
		Opponent Sekgobela, B (Boikgantso)				Opponent Phuluso, T (Tony)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Ekurhuleni North High School Individuals 2024				Tournament Benoni High School Cluster 15Feb 2025
		date 2024-05-24	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Gincane, T (Tshepang)				Opponent Myburgh, X (Xuan)
2	2	Tournament Benoni Cluster High School League 2023				Tournament Gauteng Open Arnold Classic 2023
		date 2023-05-06	rnd 5	type Rapid	result 1	date 2023-05-19	rnd 1	type Rapid	result 1
		Opponent Sekgobela, B (Boikgantso)				Opponent Phuluso, T (Tony)
3	2	Tournament Benoni Cluster HS Individuals 2022				Tournament Benoni Cluster High School League 2023
		date 2022-05-07	rnd 5	type Rapid	result 1	date 2023-05-06	rnd 1	type Rapid	result 1
		Opponent Bigmore, M (Michael)				Opponent Mabuza, M (Manqoba)

#	Games	Start				End
1	2	Tournament Ekurhuleni North High School Individuals 2024				Tournament Benoni High School Cluster 15Feb 2025
		date 2024-05-24	rnd 5	type Standard	result 1	date 2025-02-15	rnd 1	type Standard	result 1
		Opponent Gincane, T (Tshepang)				Opponent Myburgh, X (Xuan)
2	1	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 4	type Standard	result 1	date 2025-06-14	rnd 4	type Standard	result 1
		Opponent Moloi, S (Sibusiso)				Opponent Moloi, S (Sibusiso)
3	1	Tournament Ekurhuleni North School District Finals 2025				Tournament Ekurhuleni North School District Finals 2025
		date 2025-06-14	rnd 2	type Standard	result 1	date 2025-06-14	rnd 2	type Standard	result 1
		Opponent Lekoloane, A (Admire)				Opponent Lekoloane, A (Admire)

#	Games	Start				End
1	2	Tournament Benoni Cluster High School League 2023				Tournament Gauteng Open Arnold Classic 2023
		date 2023-05-06	rnd 5	type Rapid	result 1	date 2023-05-19	rnd 1	type Rapid	result 1
		Opponent Sekgobela, B (Boikgantso)				Opponent Phuluso, T (Tony)
2	2	Tournament Benoni Cluster HS Individuals 2022				Tournament Benoni Cluster High School League 2023
		date 2022-05-07	rnd 5	type Rapid	result 1	date 2023-05-06	rnd 1	type Rapid	result 1
		Opponent Bigmore, M (Michael)				Opponent Mabuza, M (Manqoba)
3	1	Tournament Benoni Cluster High Schools Teams 2024				Tournament Benoni Cluster High Schools Teams 2024
		date 2024-05-11	rnd 5	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Chapman, J (James)				Opponent Chapman, J (James)

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	Lloyd ,D (Dylan)	3	1.5	0	2	1	0	1	0.5	0	0	0	0
1	Lloyd ,D (Dylan)	3	1254.2	1254.2	2	1233.7	1254.2	1	1219.6	1254.2	0	0	0
2	Ugburo ,B (Bemigho)	2	1	0	2	1	0	0	0	0	0	0	0
2	Ugburo ,B (Bemigho)	2	1205.9	1205.9	2	1207.6	1205.9	0	0	0	0	0	0
3	White ,C (Cherrile)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	White ,C (Cherrile)	2	1190.4	765.4	0	0	0	2	1186	765.4	0	0	0
4	Myburgh ,X (Xuan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Myburgh ,X (Xuan)	1	1353.9	1778.9	1	1242.3	1778.9	0	0	0	0	0	0
5	Robbetze ,Z (Zamian)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Robbetze ,Z (Zamian)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Nyashe ,S (Siphomandla)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Nyashe ,S (Siphomandla)	1	1275.6	850.6	1	1287.5	850.6	0	0	0	0	0	0
7	Ngoqo ,L (Limule)	1	1	425	1	1	425	0	0	0	0	0	0
7	Ngoqo ,L (Limule)	1	1181.7	1606.7	1	1200	1606.7	0	0	0	0	0	0
8	Ambrose ,V (Valentino)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ambrose ,V (Valentino)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Sineko ,S (Sihle)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Sineko ,S (Sihle)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
10	Moloi ,S (Sibusiso)	1	1	425	1	1	425	0	0	0	0	0	0
10	Moloi ,S (Sibusiso)	1	1200	1625	1	1200	1625	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

De Lange, Z (Zander)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms