Chess South Africa Ratings Database

PLAYER PAGE

Personal

John, Z (Zayden)

Chess SA id

1170313834

FIDE id

534014179

Date of birth

2017-07-04 (U10)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1620.8	1653.4	1266.6	1246.4
Raw rating	1601.3	1607.8	1266.6	1246.4
Weighted rating	1345.7	1350.3	1215.3	1213.9
Weighted performance	1708	1720.4	0	0
Floor	1101.3	1107.8	766.6	746.4
K-factor	28	28	36	36
Min/Max rating change allowed	93.6	92.7	150.8	155.2
Highest rating	1620.8 2026-01-01	1653.4 2026-01-01	1266.6 2025-11-01	1246.4 2025-09-30
Highest raw rating	1601.3 2026-01-01	1607.8 2026-01-01	1266.6 2025-11-01	1246.4 2025-09-30
Highest weighted rating	1345.7 2026-01-01	1350.3 2026-01-01	1205.3 2025-11-01	1203.7 2025-09-30
Highest weighted performance	1708 2026-01-01	1720.4 2026-01-01	1200 2024-12-01	1200 2024-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	76	55.7	0	0
New rating	1696.8	1709.1	1266.6	1246.4
Analysis
Rating	1620.8	1653.4	1266.6	1246.4
Raw rating	1601.3	1607.8	1266.6	1246.4
Weighted rating	1345.7	1350.3	1215.3
Weighted performance	1708	1720.4	0
K-factor	28	28	36	36
Floor	1101.3	1107.8	766.6	746.4
Max/Min rating change allowed	93.6	92.7	150.8	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	1601.3	1607.8	1266.6	1246.4
New weighted rating	1370.8	1375.6	1220	1217
New weighted performance	1696.8	1709.1	0	0
Temp new rating	1696.8	1709.1	1266.6	1246.4
Temp new rating +/-	76	55.7	0	0
Final new rating +/-	76	55.7	0	0
New rating	1696.8	1709.1	1266.6	1246.4
New K-factor	28	28	36	36
New floor	1101.3	1107.8	766.6	746.4

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	84	68	10	6
	5	5	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	89	73	10	6

Games since
	Main 89	Standard 73		Rapid 10		Blitz 6
Gender	Male
Age group	U10
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	1185		135		52
Male	1020		119		46
U10	56		8		5
U10 Male	49		6		4
Standard
	RSA		Province		Region
Overall	884		99		38
Male	773		89		33
U10	36		5		3
U10 Male	29		3		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	84	50	59.52	81	1321.5	1402.5
Standard	68	39	57.35	62.5	1306.9	1369.4
Rapid	10	7	70	170	1345.4	1515.4
Blitz	6	4	66.67	141.7	1447	1588.7
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	89	54	60.67	90.7	1316.4	1407.1
Standard	73	43	58.9	75.7	1301.7	1377.4
Rapid	10	7	70	170	1345.4	1515.4
Blitz	6	4	66.67	141.7	1447	1588.7

Date	Main	Standard	Rapid	Blitz
2026-01-01	1601.3	1607.8	1266.6	1246.4
2025-11-30	1491.9	1499.6	1266.6	1246.4
2025-11-01	1515.8	1529.7	1266.6	1246.4
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
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	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

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Mzansi Individual Championships (U10 Open)	2025-12-17	2025-12-20	Standard	Nelson Mandela Bay (ENM)	6	6	5	Yes	Analysis
2	2025 Mzansi Inter Provincial Team Championships (U10 Combined)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	6	6	Yes	Analysis
3	2025 PE Chess Club Championship (B)	2025-12-05	2025-12-06	Standard	Nelson Mandela Bay (ENM)	5	4	2.5	Yes	Analysis
4	Fide in the Bay 2025 (D)	2025-11-29	2025-11-29	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
5	PECC - Rapid 2025 (A)	2025-10-23	2025-10-30	Rapid	Nelson Mandela Bay (ENM)	6	3	1	Yes	Analysis
6	Fide in the Bay 2025 (U12)	2025-10-04	2025-10-04	Rapid	Nelson Mandela Bay (ENM)	7	7	6	Yes	Analysis
7	PECC - Club Blitz 2025	2025-09-18	2025-09-18	Blitz	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
8	EC Closed 2025 (U8+U10 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	6	Yes	Analysis
9	FIDE in the Bay 2025 (U12)	2025-08-30	2025-08-30	Standard	Nelson Mandela Bay (ENM)	5	5	3.5	Yes	Analysis
10	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U10 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
11	Eastern Cape Inter-Regional Team Chess Championship 2025 (U10)	2025-07-10	2025-07-10	Standard	Amathole (EAL)	5	2	1	Yes	Analysis
12	Fide in the Bay 2025 (B)	2025-07-05	2025-07-05	Standard	Nelson Mandela Bay (ENM)	5	5	3	Yes	Analysis
13	NMBCU Closed 2025 (U10)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
14	NMBCU Open 2025 (C)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
15	NMBCU Trial 4 2025 (U10)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	4	1.5	Yes	Analysis
16	Karen Ashworth 2025 (C)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
17	NMB 3rd Trials 2025 (U10)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
18	NMB 2nd Trials 2025 (U10)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
19	NMBCH Trial 1 2025 (U10)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
20	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 Fide in the Bay 2025				Tournament PECC - Rapid 2025
		date 2025-10-04	rnd 5	type Rapid	result 1	date 2025-10-23	rnd 1	type Rapid	result 1
		Opponent Mabapa, P (Pabi)				Opponent Abrahams, L (Levi)
3	4	Tournament PECC - Club Blitz 2025				Tournament Fide in the Bay 2025
		date 2025-09-18	rnd 6	type Blitz	result 1	date 2025-10-04	rnd 3	type Rapid	result 1
		Opponent Plaatjies, C (Christopher)				Opponent Kapp, A (Amelie)

#	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	Viljoen ,C (Colton)	5	2.5	0	4	2.5	106.2	1	0	-425	0	0	0
3	Viljoen ,C (Colton)	5	1265.4	1265.4	4	1206.1	1371.7	1	1218	840.4	0	0	0
4	Abrahams ,L (Levi)	5	3	85	3	1	-141.7	2	2	425	0	0	0
4	Abrahams ,L (Levi)	5	1287.9	1372.9	3	1240.4	1146.2	2	1200	1712.9	0	0	0
5	Smith ,A (Ayden)	4	4	425	4	4	425	0	0	0	0	0	0
5	Smith ,A (Ayden)	4	1171.3	1596.3	4	1164.8	1596.3	0	0	0	0	0	0
6	Kapp ,A (Amelie)	4	2	0	3	1	-141.7	1	1	425	0	0	0
6	Kapp ,A (Amelie)	4	1482.6	1482.6	3	1441.2	1340.9	1	1195.4	1907.6	0	0	0
7	Borriero ,L (Luca)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
7	Borriero ,L (Luca)	3	1256	972.6	3	1251.1	972.6	0	0	0	0	0	0
8	Coetzer ,H (Hanroux)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
8	Coetzer ,H (Hanroux)	3	1181	1322.7	3	1191.1	1322.7	0	0	0	0	0	0
9	Van Huyssteen ,Z (Zani)	2	2	425	2	2	425	0	0	0	0	0	0
9	Van Huyssteen ,Z (Zani)	2	1191.2	1616.2	2	1189.4	1616.2	0	0	0	0	0	0
10	Boggenpoel ,L (Levi)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Boggenpoel ,L (Levi)	2	1502.9	1290.4	2	1502.3	1290.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

John, Z (Zayden)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms