Chess South Africa Ratings Database

PLAYER PAGE

Personal

Robbetze, Z (Zamian)

Chess SA id

1080135404

FIDE id

Date of birth

2008-09-05 (U18)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

12.6

Junior GPX Points

1205

Item	Main	Standard	Rapid	Blitz
Rating	1280.4	1288.7	1200.7	1200
Raw rating	1280.4	1288.7	1200.7	1200
Weighted rating	1242.6	1252.1	1182.3	1200
Weighted performance	1241.3	1185.5	0	0
Floor	780.4	788.7	700.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	147.9	146.1	165.6	165.8
Highest rating	1296.6 2021-09-01	1298.8 2021-09-01	1200.7 2025-09-01	1200 2018-10-01
Highest raw rating	1280.4 2025-11-01	1288.7 2025-11-01	1200.7 2025-09-01	1200 2024-02-01
Highest weighted rating	1259.5 2023-08-01	1271.6 2023-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1296.6 2021-09-01	1298.8 2021-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1280.4	1288.7	1200.7	1200
Analysis
Rating	1280.4	1288.7	1200.7	1200
Raw rating	1280.4	1288.7	1200.7	1200
Weighted rating	1242.6	1252.1	1182.3
Weighted performance	1241.3	1185.5	0
K-factor	36	36	36	36
Floor	780.4	788.7	700.7	700
Max/Min rating change allowed	147.9	146.1	165.6	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	1280.4	1288.7	1200.7	1200
New weighted rating	1246.6	1256.1	1183.8	1200
New weighted performance	1233.5	1177.9	0	0
Temp new rating	1280.4	1288.7	1200.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1280.4	1288.7	1200.7	1200
New K-factor	36	36	36	36
New floor	780.4	788.7	700.7	700

Item	Main	Standard	Rapid
	0	0	0
	14	10	4
	14	5	9
	10	10	0
	15	15	0
	5	5	0
History	58	45	13

Games since
	Main 28	Standard 15		Rapid 13		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	14	8	57.14	60.7	1270.6	1331.3
Standard	10	5.5	55	42.5	1299.8	1342.3
Rapid	4	2.5	62.5	106.2	1197.7	1303.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	58	31.5	54.31	36.6	1227.3	1264
Standard	45	25	55.56	47.2	1229.6	1276.8
Rapid	13	6.5	50	0	1219.5	1219.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1280.4	1288.7	1200.7	1200
2025-09-30	1257.1	1259.1	1200.7	1200
2025-09-01	1257.1	1259.1	1200.7	1200
2025-08-01	1245	1259.3	1179.5	1200
2025-07-01	1245	1259.3	1179.5	1200
2025-06-01	1245	1259.3	1179.5	1200
2025-05-01	1245	1259.3	1179.5	1200
2025-04-01	1245	1259.3	1179.5	1200
2025-03-01	1245	1259.3	1179.5	1200
2025-02-01	1245	1259.3	1179	1200
2025-01-01	1245	1259.3	1165.1	1200
2024-12-01	1245	1259.3	1165.1	1200
2024-11-01	1245	1259.3	1165.1	1200
2024-10-01	1259.5	1259.3	1183.8	1200
2024-09-01	1215.9	1207.5	1183.8	1200
2024-08-01	1215.9	1207.5	1183.8	1200
2024-07-01	1192.6	1207.5	1164	1200
2024-09-01	1192.6	1207.5	1164	1200
2024-05-01	1192.6	1207.5	1164	1200
2024-04-01	1192.6	1207.5	1164	1200
2024-03-01	1209.4	1207.5	1200	1200
2024-02-01	1209.4	1207.5	1200	1200
2024-01-01	1209.4	1207.5	1200	1200
2023-12-01	1209.4	1207.5	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	2025 Gauteng Top Schools Teams (U19)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
3	Kempton Park Team Clusters LS 2025 (High Schools)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	4	4	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U19)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
2	Ekurhuleni North Schools Teams 2025 (U17 Open)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
3	Kempton Park Team Clusters LS 2025 (High Schools)	2025-07-26	2025-07-26	Rapid	Ekurhuleni (GE)	4	4	2.5	Yes	Analysis
4	Gauteng Top Schools 2024 (U17 Open)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	1	0	Yes	Analysis
5	Ekurhuleni North Schools Finals - Teams 2024 (U17 Open)	2024-08-03	2024-08-03	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	Kempton Park Cluster Teams 2024 (U18)	2024-07-13	2024-07-13	Rapid	Ekurhuleni (GE)	5	4	3	Yes	Analysis
7	Ekurhuleni North High School Individuals 2024 (U18 Boys)	2024-05-24	2024-05-24	Standard	Ekurhuleni (GE)	5	0	0	No	Analysis
8	Kempton Park Cluster Individuals 2024 (U18 Boys)	2024-03-02	2024-03-02	Rapid	Ekurhuleni (GE)	5	4	1	Yes	Analysis
9	2023 Gauteng Top Schools (U15 Mixed)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
10	Ekhuruleni Chess Trials 1 2023 (U16)	2023-03-25	2023-03-25	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
11	2022 Gauteng Schools Team Championships (U15 Open)	2022-08-26	2022-08-26	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
12	Ekurhuleni-North Schools Teams 2022 (U15)	2022-08-13	2022-08-13	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
13	Ekurhuleni-North Schools Finals Indiv 2022 (U15 Boys)	2022-05-14	2022-05-14	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
14	Ekurhuleni North Schools District Finals 2021 (U13 Boys)	2021-09-11	2021-09-11	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Kempton Park Team Clusters LS 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Malotsha, U (Una)				Opponent Kotze, M (Morne)
2	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Ntanta, T (Thabiso)				Opponent Boroto, T (Tumisho)
3	3	Tournament Kempton Park Cluster Teams 2024				Tournament Kempton Park Cluster Teams 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 3	type Rapid	result 1
		Opponent Mphuma, O (Ompha)				Opponent Du Plooy, W (Wian)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni North Schools Teams 2025
		date 2024-08-03	rnd 5	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Moteno, L (Lesiang)				Opponent Kotze, M (Morne)
2	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Ntanta, T (Thabiso)				Opponent Boroto, T (Tumisho)
3	3	Tournament Ekhuruleni Chess Trials 1 2023				Tournament 2023 Gauteng Top Schools
		date 2023-03-25	rnd 5	type Standard	result 1	date 2023-08-19	rnd 2	type Standard	result 1
		Opponent Sairai, N (Nyasha)				Opponent Tshivule, R (Risuna)

#	Games	Start				End
1	3	Tournament Kempton Park Team Clusters LS 2025				Tournament Kempton Park Team Clusters LS 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 4	type Rapid	result 1
		Opponent Malotsha, U (Una)				Opponent Stritter, R (Robert)
2	3	Tournament Kempton Park Cluster Teams 2024				Tournament Kempton Park Cluster Teams 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 3	type Rapid	result 1
		Opponent Mphuma, O (Ompha)				Opponent Du Plooy, W (Wian)
3	1	Tournament Kempton Park Cluster Individuals 2024				Tournament Kempton Park Cluster Individuals 2024
		date 2024-03-02	rnd 2	type Rapid	result 1	date 2024-03-02	rnd 2	type Rapid	result 1
		Opponent Selopyane, N (Nhlanhla)				Opponent Selopyane, N (Nhlanhla)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Kempton Park Team Clusters LS 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Stritter, R (Robert)				Opponent Kotze, M (Morne)
2	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Ntanta, T (Thabiso)				Opponent Boroto, T (Tumisho)
3	3	Tournament Kempton Park Cluster Teams 2024				Tournament Kempton Park Cluster Teams 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 3	type Rapid	result 1
		Opponent Mphuma, O (Ompha)				Opponent Du Plooy, W (Wian)

#	Games	Start				End
1	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni North Schools Teams 2025
		date 2024-08-03	rnd 5	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Moteno, L (Lesiang)				Opponent Kotze, M (Morne)
2	3	Tournament Ekurhuleni North Schools Finals - Teams 2024				Tournament Ekurhuleni North Schools Finals - Teams 2024
		date 2024-08-03	rnd 1	type Standard	result 1	date 2024-08-03	rnd 3	type Standard	result 1
		Opponent Ntanta, T (Thabiso)				Opponent Boroto, T (Tumisho)
3	3	Tournament 2022 Gauteng Schools Team Championships				Tournament 2022 Gauteng Schools Team Championships
		date 2022-08-26	rnd 3	type Standard	result 1	date 2022-08-26	rnd 5	type Standard	result 1
		Opponent Vogel, D (Dane)				Opponent Mcgurk, P (Paul)

#	Games	Start				End
1	3	Tournament Kempton Park Cluster Teams 2024				Tournament Kempton Park Cluster Teams 2024
		date 2024-07-13	rnd 1	type Rapid	result 1	date 2024-07-13	rnd 3	type Rapid	result 1
		Opponent Mphuma, O (Ompha)				Opponent Du Plooy, W (Wian)
2	1	Tournament Kempton Park Team Clusters LS 2025				Tournament Kempton Park Team Clusters LS 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-07-26	rnd 4	type Rapid	result 1
		Opponent Stritter, R (Robert)				Opponent Stritter, R (Robert)
3	1	Tournament Kempton Park Team Clusters LS 2025				Tournament Kempton Park Team Clusters LS 2025
		date 2025-07-26	rnd 2	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Malotsha, U (Una)				Opponent Malotsha, U (Una)

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	Mcgurk ,P (Paul)	1	1	425	1	1	425	0	0	0	0	0	0
1	Mcgurk ,P (Paul)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Moyo ,P (Princess Charity)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Moyo ,P (Princess Charity)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Shah ,S (Sufiyaan)	1	1	425	1	1	425	0	0	0	0	0	0
3	Shah ,S (Sufiyaan)	1	1231.7	1656.7	1	1237.1	1656.7	0	0	0	0	0	0
4	Nkosi ,B (Bulelani Alwande Asenathi)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
4	Nkosi ,B (Bulelani Alwande Asenathi)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
5	Van Der Merwe ,N (Noah)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Van Der Merwe ,N (Noah)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Sibanda ,M (Maneliswa)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Sibanda ,M (Maneliswa)	1	1488.1	1063.1	1	1432.8	1063.1	0	0	0	0	0	0
7	Sambo ,L (Loago Firtunate)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Sambo ,L (Loago Firtunate)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
8	Dodo ,M (Mpumelelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Dodo ,M (Mpumelelo)	1	1473.5	1048.5	1	1473.5	1048.5	0	0	0	0	0	0
9	Naidoo ,M (Marisa)	1	1	425	1	1	425	0	0	0	0	0	0
9	Naidoo ,M (Marisa)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Ramphele ,M (Mpho)	1	1	425	1	1	425	0	0	0	0	0	0
10	Ramphele ,M (Mpho)	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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Personal

Robbetze, Z (Zamian)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms