Chess South Africa Ratings Database

PLAYER PAGE

Personal

John, Z (Zayden)

Chess SA id

1170313834

FIDE id

Date of birth

2017-07-04 (U10)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-18

Personal details last changed

1900-01-01

Junior GPX Games

68.5

Junior GPX Points

1349.9

Item	Main	Standard	Rapid	Blitz
Rating	1563.5	1559.5	1200	1246.4
Raw rating	1525.1	1529.7	1200	1246.4
Weighted rating	1278.9	1281.9	1200	1203.7
Weighted performance	1569.9	1593.1	0	0
Floor	1025.1	1029.7	700	746.4
K-factor	32	32	36	36
Min/Max rating change allowed	104.3	103.7	165.8	155.2
Highest rating	1563.5 2025-09-30	1559.5 2025-09-30	1200 2024-12-01	1246.4 2025-09-30
Highest raw rating	1525.1 2025-09-30	1529.7 2025-09-30	1200 2024-12-01	1246.4 2025-09-30
Highest weighted rating	1294.6 2025-03-01	1301.9 2025-02-01	1200 2024-12-01	1203.7 2025-09-30
Highest weighted performance	1569.9 2025-09-30	1593.1 2025-09-30	1200 2024-12-01	1200 2024-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	5.9	33.1	0	0
New rating	1569.3	1592.6	1200	1246.4
Analysis
Rating	1563.5	1559.5	1200	1246.4
Raw rating	1525.1	1529.7	1200	1246.4
Weighted rating	1278.9	1281.9	1200
Weighted performance	1569.9	1593.1	0
K-factor	32	32	36	36
Floor	1025.1	1029.7	700	746.4
Max/Min rating change allowed	104.3	103.7	165.8	155.2
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	1525.1	1529.7	1200	1246.4
New weighted rating	1301.3	1304.4	1200	1207.3
New weighted performance	1569.3	1592.6	0	0
Temp new rating	1569.3	1592.6	1200	1246.4
Temp new rating +/-	5.9	33.1	0	0
Final new rating +/-	5.9	33.1	0	0
New rating	1569.3	1592.6	1200	1246.4
New K-factor	32	32	36	36
New floor	1025.1	1029.7	700	746.4

Item	Main	Standard	Blitz
	0	0	0
	69	63	6
	5	5	0
	0	0	0
	0	0	0
	0	0	0
History	74	68	6

Games since
	Main 74	Standard 68		Rapid 0		Blitz 6
Gender	Male
Age group	U10
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	831		99		36
Male	739		90		31
U10	38		6		3
U10 Male	32		4		2
Standard
	RSA		Province		Region
Overall	794		92		36
Male	700		83		31
U10	38		6		3
U10 Male	32		4		2
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	69	40	57.97	67.8	1316.8	1384.6
Standard	63	36	57.14	60.7	1304.4	1365.2
Rapid	0	0	0	0	0	0
Blitz	6	4	66.67	141.7	1447	1588.7
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	74	44	59.46	80.4	1311	1391.4
Standard	68	40	58.82	75	1299	1374
Rapid	0	0	0	0	0	0
Blitz	6	4	66.67	141.7	1447	1588.7

Date	Main	Standard	Rapid	Blitz
2025-09-30	1525.1	1529.7	1200	1246.4
2025-09-01	1423.2	1426.4	1200	1200
2025-08-01	1401.3	1400.2	1200	1200
2025-07-01	1294.6	1297.7	1200	1200
2025-06-01	1292.1	1301.9	1200	1200
2025-05-01	1223.1	1224.9	1200	1200
2025-04-01	1206.8	1208	1200	1200
2025-03-01	1209.2	1210.7	1200	1200
2025-02-01	1257.1	1269.2	1200	1200
2025-01-01	1257.1	1269.2	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
2024-06-01	1200	1200	1200	1200
2024-08-01	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
2023-11-01	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	PECC - Club Blitz 2025	2025-09-18	2025-09-18	Blitz	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
2	EC Closed 2025 (U8+U10 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	6	Yes	Analysis
3	FIDE in the Bay 2025 (U12)	2025-08-30	2025-08-30	Standard	Nelson Mandela Bay (ENM)	5	5	3.5	Yes	Analysis
4	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U10 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
5	Eastern Cape Inter-Regional Team Chess Championship 2025 (U10)	2025-07-10	2025-07-10	Standard	Amathole (EAL)	5	2	1	Yes	Analysis
6	Fide in the Bay 2025 (B)	2025-07-05	2025-07-05	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
7	NMBCU Closed 2025 (U10)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
8	NMBCU Open 2025 (C)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
9	NMBCU Trial 4 2025 (U10)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	4	1.5	Yes	Analysis
10	Karen Ashworth 2025 (C)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
11	NMB 3rd Trials 2025 (U10)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
12	NMB 2nd Trials 2025 (U10)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
13	NMBCH Trial 1 2025 (U10)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	PECC - Club Blitz 2025	2025-09-18	2025-09-18	Blitz	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
2	EC Closed 2025 (U8+U10 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	6	Yes	Analysis
3	FIDE in the Bay 2025 (U12)	2025-08-30	2025-08-30	Standard	Nelson Mandela Bay (ENM)	5	5	3.5	Yes	Analysis
4	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U10 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
5	Eastern Cape Inter-Regional Team Chess Championship 2025 (U10)	2025-07-10	2025-07-10	Standard	Amathole (EAL)	5	2	1	Yes	Analysis
6	Fide in the Bay 2025 (B)	2025-07-05	2025-07-05	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
7	NMBCU Closed 2025 (U10)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
8	NMBCU Open 2025 (C)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
9	NMBCU Trial 4 2025 (U10)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	4	1.5	Yes	Analysis
10	Karen Ashworth 2025 (C)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
11	NMB 3rd Trials 2025 (U10)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
12	NMB 2nd Trials 2025 (U10)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
13	NMBCH Trial 1 2025 (U10)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
14	Township Chess 204 (C)	2024-11-30	2024-11-30	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis

#	Games	Start				End
1	11	Tournament FIDE in the Bay 2025				Tournament PECC - Club Blitz 2025
		date 2025-08-30	rnd 3	type Standard	result 0.5	date 2025-09-18	rnd 2	type Blitz	result 1
		Opponent Mitchell, N (Nicholas)				Opponent Bezuidenhout, M (Michyle)
2	4	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 4	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Singazi, M (Melokuhle)				Opponent Ozah, C (Chinedu)
3	4	Tournament NMBCU Open 2025				Tournament NMBCU Open 2025
		date 2025-05-24	rnd 2	type Standard	result 1	date 2025-05-24	rnd 5	type Standard	result 0.5
		Opponent Ackerman, T (Taylom)				Opponent Celliers, M (Morgan)

#	Games	Start				End
1	9	Tournament FIDE in the Bay 2025				Tournament EC Closed 2025
		date 2025-08-30	rnd 3	type Standard	result 0.5	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Mitchell, N (Nicholas)				Opponent Viljoen, C (Colton)
2	4	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 4	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Singazi, M (Melokuhle)				Opponent Ozah, C (Chinedu)
3	4	Tournament NMBCU Open 2025				Tournament NMBCU Open 2025
		date 2025-05-24	rnd 2	type Standard	result 1	date 2025-05-24	rnd 5	type Standard	result 0.5
		Opponent Ackerman, T (Taylom)				Opponent Celliers, M (Morgan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament PECC - Club Blitz 2025				Tournament PECC - Club Blitz 2025
		date 2025-09-18	rnd 1	type Blitz	result 1	date 2025-09-18	rnd 2	type Blitz	result 1
		Opponent Cilliers, L (Liani)				Opponent Bezuidenhout, M (Michyle)
2	1	Tournament PECC - Club Blitz 2025				Tournament PECC - Club Blitz 2025
		date 2025-09-18	rnd 6	type Blitz	result 1	date 2025-09-18	rnd 6	type Blitz	result 1
		Opponent Plaatjies, C (Christopher)				Opponent Plaatjies, C (Christopher)
3	1	Tournament PECC - Club Blitz 2025				Tournament PECC - Club Blitz 2025
		date 2025-09-18	rnd 4	type Blitz	result 1	date 2025-09-18	rnd 4	type Blitz	result 1
		Opponent Brown, N (Nathan)				Opponent Brown, N (Nathan)

#	Games	Start				End
1	10	Tournament FIDE in the Bay 2025				Tournament PECC - Club Blitz 2025
		date 2025-08-30	rnd 4	type Standard	result 1	date 2025-09-18	rnd 2	type Blitz	result 1
		Opponent Sternberg, N (Nicolas)				Opponent Bezuidenhout, M (Michyle)
2	4	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 4	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Singazi, M (Melokuhle)				Opponent Ozah, C (Chinedu)
3	3	Tournament NMBCU Closed 2025				Tournament Fide in the Bay 2025
		date 2025-06-14	rnd 5	type Standard	result 1	date 2025-07-05	rnd 1	type Standard	result 1
		Opponent Goosen, B (Blake)				Opponent Noah, A (Alexander)

#	Games	Start				End
1	8	Tournament FIDE in the Bay 2025				Tournament EC Closed 2025
		date 2025-08-30	rnd 4	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Sternberg, N (Nicolas)				Opponent Viljoen, C (Colton)
2	4	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 4	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Singazi, M (Melokuhle)				Opponent Ozah, C (Chinedu)
3	3	Tournament NMBCU Closed 2025				Tournament Fide in the Bay 2025
		date 2025-06-14	rnd 5	type Standard	result 1	date 2025-07-05	rnd 1	type Standard	result 1
		Opponent Goosen, B (Blake)				Opponent Noah, A (Alexander)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament PECC - Club Blitz 2025				Tournament PECC - Club Blitz 2025
		date 2025-09-18	rnd 1	type Blitz	result 1	date 2025-09-18	rnd 2	type Blitz	result 1
		Opponent Cilliers, L (Liani)				Opponent Bezuidenhout, M (Michyle)
2	1	Tournament PECC - Club Blitz 2025				Tournament PECC - Club Blitz 2025
		date 2025-09-18	rnd 6	type Blitz	result 1	date 2025-09-18	rnd 6	type Blitz	result 1
		Opponent Plaatjies, C (Christopher)				Opponent Plaatjies, C (Christopher)
3	1	Tournament PECC - Club Blitz 2025				Tournament PECC - Club Blitz 2025
		date 2025-09-18	rnd 4	type Blitz	result 1	date 2025-09-18	rnd 4	type Blitz	result 1
		Opponent Brown, N (Nathan)				Opponent Brown, N (Nathan)

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	Arries ,T (Tristan)	5	3	85	5	3	85	0	0	0	0	0	0
1	Arries ,T (Tristan)	5	1500.6	1585.6	5	1500.3	1585.6	0	0	0	0	0	0
2	Celliers ,M (Morgan)	5	1	-255	5	1	-255	0	0	0	0	0	0
2	Celliers ,M (Morgan)	5	1355	1100	5	1326.3	1100	0	0	0	0	0	0
3	Smith ,A (Ayden)	4	4	425	4	4	425	0	0	0	0	0	0
3	Smith ,A (Ayden)	4	1171.3	1596.3	4	1164.8	1596.3	0	0	0	0	0	0
4	Viljoen ,C (Colton)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
4	Viljoen ,C (Colton)	4	1218.7	1324.9	4	1206.1	1324.9	0	0	0	0	0	0
5	Abrahams ,L (Levi)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Abrahams ,L (Levi)	3	1242.4	1100.8	3	1240.4	1100.8	0	0	0	0	0	0
6	Borriero ,L (Luca)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
6	Borriero ,L (Luca)	3	1256	972.6	3	1251.1	972.6	0	0	0	0	0	0
7	Coetzer ,H (Hanroux)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
7	Coetzer ,H (Hanroux)	3	1181	1322.7	3	1191.1	1322.7	0	0	0	0	0	0
8	Kapp ,A (Amelie)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
8	Kapp ,A (Amelie)	3	1454.7	1313.1	3	1441.2	1313.1	0	0	0	0	0	0
9	Mitchell ,N (Nicholas)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Mitchell ,N (Nicholas)	2	1325.4	1537.9	2	1321.4	1537.9	0	0	0	0	0	0
10	Van Huyssteen ,Z (Zani)	2	2	425	2	2	425	0	0	0	0	0	0
10	Van Huyssteen ,Z (Zani)	2	1191.2	1616.2	2	1189.4	1616.2	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

John, Z (Zayden)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms