Chess South Africa Ratings Database

PLAYER PAGE

Personal

Cooper, Z (Zian)

Chess SA id

1150321133

FIDE id

Date of birth

2015-12-18 (U12)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1156

Item	Main	Standard	Rapid	Blitz
Rating	1205.3	1206.4	1200	1200
Raw rating	1172.1	1165.1	1200	1200
Weighted rating	1205.3	1206.4	1200	1200
Weighted performance	0	0	0	0
Floor	750.4	761.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.5	174.3	165.8	165.8
Highest rating	1250.4 2025-09-01	1261.2 2025-09-01	1200 2025-06-01	1200 2025-06-01
Highest raw rating	1250.4 2025-09-01	1261.2 2025-09-01	1200 2025-06-01	1200 2025-06-01
Highest weighted rating	1205.3 2025-11-01	1206.4 2025-11-01	1200 2025-06-01	1200 2025-06-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-2.5	-3.1	0	0
New rating	1202.9	1203.3	1200	1200
Analysis
Rating	1205.3	1206.4	1200	1200
Raw rating	1172.1	1165.1	1200	1200
Weighted rating	1205.3	1206.4	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	750.4	761.2	700	700
Max/Min rating change allowed	172.5	174.3	165.8	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	1172.1	1165.1	1200	1200
New weighted rating	1202.9	1203.3	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1202.9	1203.3	1200	1200
Temp new rating +/-	-2.5	-3.1	0	0
Final new rating +/-	-2.5	-3.1	0	0
New rating	1202.9	1203.3	1200	1200
New K-factor	36	36	36	36
New floor	750.4	761.2	700	700

Item	Main	Standard
	0	0
	15	15
	0	0
	0	0
	0	0
	0	0
History	15	15

Games since
	Main 15	Standard 15		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	15	6.5	43.33	-56.7	1211.2	1154.5
Standard	15	6.5	43.33	-56.7	1211.2	1154.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	6.5	43.33	-56.7	1211.2	1154.5
Standard	15	6.5	43.33	-56.7	1211.2	1154.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1172.1	1165.1	1200	1200
2025-09-30	1250.4	1261.2	1200	1200
2025-09-01	1250.4	1261.2	1200	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1199.9	1199.9	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
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	2025 Gauteng Top Schools Teams (U11)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	0	Yes	Analysis
2	D5 Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	D5 Anker 2025 (U11 Boys)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	5	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 (U11)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	0	Yes	Analysis
2	D5 Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
3	D5 Anker 2025 (U11 Boys)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament D5 Anker 2025				Tournament D5 Teams 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Makhathini, A (Alwande)				Opponent de Nazare, G (Giovanni)
2	2	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Muller, R (Rheiley)				Opponent Steenkamp, N (Nadia)

#	Games	Start				End
1	5	Tournament D5 Anker 2025				Tournament D5 Teams 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Makhathini, A (Alwande)				Opponent de Nazare, G (Giovanni)
2	2	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Muller, R (Rheiley)				Opponent Steenkamp, N (Nadia)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Muller, R (Rheiley)				Opponent Steenkamp, N (Nadia)
2	2	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Snyman, Z (Zane)				Opponent de Nazare, G (Giovanni)
3	2	Tournament D5 Anker 2025				Tournament D5 Anker 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Makhathini, A (Alwande)				Opponent Wessels, R (Rayn)

#	Games	Start				End
1	2	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent Muller, R (Rheiley)				Opponent Steenkamp, N (Nadia)
2	2	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Snyman, Z (Zane)				Opponent de Nazare, G (Giovanni)
3	2	Tournament D5 Anker 2025				Tournament D5 Anker 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Makhathini, A (Alwande)				Opponent Wessels, R (Rayn)

No games found.

#	Games	Start				End

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	Wessels ,R (Rayn)	1	1	425	1	1	425	0	0	0	0	0	0
1	Wessels ,R (Rayn)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Shoba ,A (Anele)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Shoba ,A (Anele)	1	1200	775	1	1200	775	0	0	0	0	0	0
3	Koekemoer ,L (Luhan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Koekemoer ,L (Luhan)	1	1376.5	951.5	1	1390.1	951.5	0	0	0	0	0	0
4	Molefe ,T (Thato)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Molefe ,T (Thato)	1	1115.8	690.8	1	1102.4	690.8	0	0	0	0	0	0
5	Snyman ,Z (Zane)	1	1	425	1	1	425	0	0	0	0	0	0
5	Snyman ,Z (Zane)	1	1201	1626	1	1201.1	1626	0	0	0	0	0	0
6	Dithebe ,K (Katleho)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Dithebe ,K (Katleho)	1	1222.9	797.9	1	1226.9	797.9	0	0	0	0	0	0
7	Steenkamp ,N (Nadia)	1	1	425	1	1	425	0	0	0	0	0	0
7	Steenkamp ,N (Nadia)	1	1216.4	1641.4	1	1219.4	1641.4	0	0	0	0	0	0
8	de Nazare ,G (Giovanni)	1	1	425	1	1	425	0	0	0	0	0	0
8	de Nazare ,G (Giovanni)	1	1215.2	1640.2	1	1218.3	1640.2	0	0	0	0	0	0
9	Du Preez ,Z (Zayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Du Preez ,Z (Zayden)	1	1219.8	794.8	1	1224	794.8	0	0	0	0	0	0
10	Muller ,R (Rheiley)	1	1	425	1	1	425	0	0	0	0	0	0
10	Muller ,R (Rheiley)	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

Cooper, Z (Zian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms