Chess South Africa Ratings Database

PLAYER PAGE

Personal

Nahon, J (James)

Chess SA id

1150157233

FIDE id

Date of birth

2015-04-16 (U12)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-16

Personal details last changed

2025-02-20

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1434.3	1383.4	1332.6	1200
Raw rating	1413.2	1383.4	1332.6	1200
Weighted rating	1342.2	1323.7	1270.9	1200
Weighted performance	1434.3	1366.5	1301.9	0
Floor	913.2	883.4	832.6	700
K-factor	32	36	36	36
Min/Max rating change allowed	122.4	127.7	137.3	165.8
Highest rating	1434.3 2026-01-01	1383.4 2026-01-01	1332.6 2026-01-01	1200 2018-10-01
Highest raw rating	1413.2 2026-01-01	1383.4 2026-01-01	1332.6 2026-01-01	1200 2024-02-01
Highest weighted rating	1342.2 2026-01-01	1323.7 2026-01-01	1276.4 2025-02-01	1200 2018-10-01
Highest weighted performance	1434.3 2026-01-01	1366.5 2026-01-01	1301.9 2026-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-9.5	0	0	0
New rating	1424.8	1383.4	1332.6	1200
Analysis
Rating	1434.3	1383.4	1332.6	1200
Raw rating	1413.2	1383.4	1332.6	1200
Weighted rating	1342.2	1323.7	1270.9
Weighted performance	1434.3	1366.5	1301.9
K-factor	32	36	36	36
Floor	913.2	883.4	832.6	700
Max/Min rating change allowed	122.4	127.7	137.3	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	1413.2	1383.4	1332.6	1200
New weighted rating	1350.3	1330.7	1276.8	1200
New weighted performance	1424.8	1357.3	1293	0
Temp new rating	1424.8	1383.4	1332.6	1200
Temp new rating +/-	-9.5	0	0	0
Final new rating +/-	-9.5	0	0	0
New rating	1424.8	1383.4	1332.6	1200
New K-factor	32	36	36	36
New floor	913.2	883.4	832.6	700

Item	Main	Standard	Rapid
	0	0	0
	42	25	17
	50	35	15
	10	5	5
	0	0	0
	0	0	0
History	102	65	37

Games since
	Main 92	Standard 60		Rapid 32		Blitz 0
Gender	Male
Age group	U12
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2111		743		247
Male	1730		600		205
U12	270		99		32
U12 Male	197		69		27
Standard
	RSA		Province		Region
Overall	2309		864		262
Male	1866		695		214
U12	303		115		36
U12 Male	224		81		30
Rapid
	RSA		Province		Region
Overall	1051		176		82
Male	850		138		73
U12	178		22		7
U12 Male	130		16		7
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	42	23	54.76	40.5	1320.4	1360.9
Standard	25	14	56	51	1341.4	1392.4
Rapid	17	9	52.94	25	1289.5	1314.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	102	56.5	55.39	45.8	1284.5	1330.3
Standard	65	35.5	54.62	39.2	1293.8	1333
Rapid	37	21	56.76	57.4	1268.2	1325.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1413.2	1383.4	1332.6	1200
2025-11-30	1403.1	1380.2	1304.6	1200
2025-11-01	1356.5	1322.2	1304.6	1200
2025-09-30	1356.5	1322.2	1304.6	1200
2025-09-01	1326.6	1322.2	1249.8	1200
2025-08-01	1323	1317.8	1249.8	1200
2025-07-01	1323	1317.8	1249	1200
2025-06-01	1354.8	1350.9	1248.2	1200
2025-05-01	1349.3	1345.5	1247.3	1200
2025-04-01	1349.3	1345.5	1246.1	1200
2025-03-01	1334.6	1326.5	1242.8	1200
2025-02-01	1362.4	1326.5	1276.4	1200
2025-01-01	1362.4	1326.5	1276.4	1200
2024-12-01	1362.4	1326.5	1276.4	1200
2024-11-01	1362.4	1326.5	1276.4	1200
2024-10-01	1291.6	1268.8	1276.4	1200
2024-09-01	1267.4	1232.8	1276.4	1200
2024-11-01	1236.8	1232.8	1221.7	1200
2024-07-01	1253.8	1255.1	1221.7	1200
2024-06-01	1253.8	1255.1	1221.7	1200
2024-05-01	1230.2	1221.6	1221.7	1200
2024-04-01	1235.1	1221.6	1235.7	1200
2024-03-01	1211.2	1188.8	1235.7	1200
2024-02-01	1193.4	1188.8	1214.8	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	Chess Power House Dec Rapid 2025 (D+E)	2025-12-16	2025-12-16	Rapid	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
2	Gauteng Inter-Region at Emerald Resort 2025 (U12 Candidates)	2025-12-06	2025-12-07	Standard	Sedibeng (GSV)	5	5	3	Yes	Analysis
3	Chess Power House October Open 2025 (D)	2025-10-25	2025-10-25	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
4	MCA Spring Flower Birthday Rapid 2025 (U12)	2025-09-20	2025-09-20	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
5	JMC Closed 2025 (U12)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
6	Chess Power House Youth Day Rapid 2025 (D)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis
7	JMC Helpmekaar 2025 (U12)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
8	CPH May 2025 (D)	2025-05-03	2025-05-03	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	JMC Crawford Ruimsig 2025 (U12)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
10	JMC Rapid The Bridge School 2025 (Open)	2025-02-23	2025-02-23	Rapid	Johannesburg Metro (GJM)	7	7	2	Yes	Analysis
11	CPH Boksburg Open 2024 (D)	2024-10-26	2024-10-26	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
12	Mzansi Spring Open 2024 (Newcomer)	2024-09-07	2024-09-07	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
13	CPH King David Linksfield Aug Rapid 2024 (C)	2024-08-18	2024-08-18	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
14	Chess Power House July Open 2024 (D)	2024-07-20	2024-07-20	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
15	GoForChess Junior Chess Championships 2024 (Junior)	2024-05-19	2024-05-19	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
16	Chess Power House May Open 2024 (D)	2024-05-25	2024-05-25	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
17	JMC Crawford International Sandton 2024 (U10)	2024-05-11	2024-05-11	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
18	JCC King David Linksfield Rapid 2024 (C)	2024-04-21	2024-04-21	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
19	JMC Unika School Tournament 2024 (U10)	2024-03-02	2024-03-02	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
20	Chess Power House 1st Rapid 2024 (C)	2024-02-24	2024-02-24	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
21	Chess Power House 2023 (D)	2023-08-19	2023-08-19	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
22	Chess Molecules 16 June Tournament 2023 (Grade 0-2)	2023-06-16	2023-06-16	Rapid	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament JMC Unika School Tournament 2024				Tournament JCC King David Linksfield Rapid 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-04-21	rnd 2	type Rapid	result 1
		Opponent Du Plessis, P (Prieur)				Opponent Wu, S (Summer)
2	4	Tournament CPH May 2025				Tournament JMC Helpmekaar 2025
		date 2025-05-03	rnd 3	type Standard	result 1	date 2025-06-01	rnd 1	type Standard	result 1
		Opponent Pon, M (Michael)				Opponent Niemann, C (Clara)
3	4	Tournament Chess Power House July Open 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-07-20	rnd 5	type Standard	result 1	date 2024-08-18	rnd 3	type Rapid	result 1
		Opponent Simamane, S (Siphesihle)				Opponent Kuchibhotla, AKA (Achyuta Kartikeya Arjun)

#	Games	Start				End
1	5	Tournament JMC Unika School Tournament 2024				Tournament JMC Crawford International Sandton 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Du Plessis, P (Prieur)				Opponent Purohit, A (Aarav)
2	4	Tournament CPH May 2025				Tournament JMC Helpmekaar 2025
		date 2025-05-03	rnd 3	type Standard	result 1	date 2025-06-01	rnd 1	type Standard	result 1
		Opponent Pon, M (Michael)				Opponent Niemann, C (Clara)
3	4	Tournament JMC Crawford International Sandton 2024				Tournament GoForChess Junior Chess Championships 2024
		date 2024-05-11	rnd 5	type Standard	result 1	date 2024-05-19	rnd 3	type Standard	result 1
		Opponent Kilari, S (Suveer)				Opponent Le Kay, A (Alexa)

#	Games	Start				End
1	3	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-08-18	rnd 1	type Rapid	result 1	date 2024-08-18	rnd 3	type Rapid	result 1
		Opponent Pon, M (Michael)				Opponent Kuchibhotla, AKA (Achyuta Kartikeya Arjun)
2	2	Tournament MCA Spring Flower Birthday Rapid 2025				Tournament MCA Spring Flower Birthday Rapid 2025
		date 2025-09-20	rnd 4	type Rapid	result 1	date 2025-09-20	rnd 5	type Rapid	result 1
		Opponent Garbers, B (Bryan)				Opponent Murugan, S (Shreya)
3	2	Tournament MCA Spring Flower Birthday Rapid 2025				Tournament MCA Spring Flower Birthday Rapid 2025
		date 2025-09-20	rnd 1	type Rapid	result 1	date 2025-09-20	rnd 2	type Rapid	result 1
		Opponent Chen, C (Chieh Jui ( Riley))				Opponent Naidoo, S (Sienna)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament CPH May 2025				Tournament JMC Helpmekaar 2025
		date 2025-05-03	rnd 3	type Standard	result 1	date 2025-06-01	rnd 1	type Standard	result 1
		Opponent Pon, M (Michael)				Opponent Niemann, C (Clara)
2	4	Tournament Chess Power House July Open 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-07-20	rnd 5	type Standard	result 1	date 2024-08-18	rnd 3	type Rapid	result 1
		Opponent Simamane, S (Siphesihle)				Opponent Kuchibhotla, AKA (Achyuta Kartikeya Arjun)
3	4	Tournament JMC Unika School Tournament 2024				Tournament JCC King David Linksfield Rapid 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-04-21	rnd 2	type Rapid	result 1
		Opponent Van Zijl, W (Wouter)				Opponent Wu, S (Summer)

#	Games	Start				End
1	4	Tournament CPH May 2025				Tournament JMC Helpmekaar 2025
		date 2025-05-03	rnd 3	type Standard	result 1	date 2025-06-01	rnd 1	type Standard	result 1
		Opponent Pon, M (Michael)				Opponent Niemann, C (Clara)
2	3	Tournament JMC Unika School Tournament 2024				Tournament JMC Crawford International Sandton 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-05-11	rnd 1	type Standard	result 1
		Opponent Van Zijl, W (Wouter)				Opponent Purohit, A (Aarav)
3	2	Tournament Mzansi Spring Open 2024				Tournament CPH Boksburg Open 2024
		date 2024-09-07	rnd 5	type Standard	result 1	date 2024-10-26	rnd 1	type Standard	result 1
		Opponent Orren, JJ (Jade Junior)				Opponent Zhu, R (Ryan Yuancheng)

#	Games	Start				End
1	3	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-08-18	rnd 1	type Rapid	result 1	date 2024-08-18	rnd 3	type Rapid	result 1
		Opponent Pon, M (Michael)				Opponent Kuchibhotla, AKA (Achyuta Kartikeya Arjun)
2	2	Tournament MCA Spring Flower Birthday Rapid 2025				Tournament MCA Spring Flower Birthday Rapid 2025
		date 2025-09-20	rnd 4	type Rapid	result 1	date 2025-09-20	rnd 5	type Rapid	result 1
		Opponent Garbers, B (Bryan)				Opponent Murugan, S (Shreya)
3	2	Tournament MCA Spring Flower Birthday Rapid 2025				Tournament MCA Spring Flower Birthday Rapid 2025
		date 2025-09-20	rnd 1	type Rapid	result 1	date 2025-09-20	rnd 2	type Rapid	result 1
		Opponent Chen, C (Chieh Jui ( Riley))				Opponent Naidoo, S (Sienna)

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	Farkas ,G (Gadi)	4	0.5	-318.8	3	0.5	-283.3	1	0	-425	0	0	0
1	Farkas ,G (Gadi)	4	1266.5	947.7	3	1276.9	983.1	1	1181.6	841.5	0	0	0
2	Zhu ,R (Ryan Yuancheng)	4	2.5	106.2	2	1.5	212.5	2	1	0	0	0	0
2	Zhu ,R (Ryan Yuancheng)	4	1469.1	1575.3	2	1542.4	1681.6	2	1313.9	1469.1	0	0	0
3	Finnemore ,E (Ewan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Finnemore ,E (Ewan)	3	1461.7	1320.1	3	1459.5	1320.1	0	0	0	0	0	0
4	Pon ,M (Michael)	3	3	425	2	2	425	1	1	425	0	0	0
4	Pon ,M (Michael)	3	1176.6	1601.6	2	1183.3	1601.6	1	1200	1601.6	0	0	0
5	Du Pisani ,M (Malcolm)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Du Pisani ,M (Malcolm)	2	1376.1	1163.6	2	1379.7	1163.6	0	0	0	0	0	0
6	Ravuri ,C (Chinmay Vihaan)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Ravuri ,C (Chinmay Vihaan)	2	1372.9	947.9	2	1372.6	947.9	0	0	0	0	0	0
7	Shyu ,Y (Yu-Kai)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Shyu ,Y (Yu-Kai)	2	1201	988.5	2	1200.8	988.5	0	0	0	0	0	0
8	Le Kay ,A (Alexa)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
8	Le Kay ,A (Alexa)	2	1298.2	1510.8	2	1303.2	1510.8	0	0	0	0	0	0
9	Kuchibhotla ,AKA (Achyuta Kartikeya Arjun)	2	1	0	1	0	-425	1	1	425	0	0	0
9	Kuchibhotla ,AKA (Achyuta Kartikeya Arjun)	2	1261.4	1261.4	1	1259.8	836.4	1	1088.4	1686.4	0	0	0
10	Lipshitz ,B (Blake)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Lipshitz ,B (Blake)	2	1243.2	818.2	1	1230.8	818.2	1	1225.2	818.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Nahon, J (James)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms