Chess South Africa Ratings Database

PLAYER PAGE

Personal

Alter, N (Naomi Bella)

Chess SA id

1160305500

FIDE id

Date of birth

2016-07-12 (U10)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1264.5	1239.1	1279.6	1200
Raw rating	1264.5	1239.1	1279.6	1200
Weighted rating	1253	1234.6	1250.3	1200
Weighted performance	0	0	0	0
Floor	784.8	760.3	779.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	151.3	156.8	148	165.8
Highest rating	1325.8 2024-05-01	1328.8 2024-05-01	1321.7 2024-08-01	1200 2024-05-01
Highest raw rating	1284.8 2025-07-01	1260.3 2025-07-01	1279.6 2025-03-01	1200 2024-05-01
Highest weighted rating	1284.8 2024-10-01	1234.6 2025-09-30	1279.6 2024-10-01	1200 2024-05-01
Highest weighted performance	1325.8 2024-05-01	1328.8 2024-05-01	1321.7 2024-08-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1264.5	1239.1	1279.6	1200
Analysis
Rating	1264.5	1239.1	1279.6	1200
Raw rating	1264.5	1239.1	1279.6	1200
Weighted rating	1253	1234.6	1250.3
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	784.8	760.3	779.6	700
Max/Min rating change allowed	151.3	156.8	148	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	1264.5	1239.1	1279.6	1200
New weighted rating	1255.2	1235.7	1254.1	1200
New weighted performance	0	0	0	0
Temp new rating	1264.5	1239.1	1279.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1264.5	1239.1	1279.6	1200
New K-factor	36	36	36	36
New floor	784.8	760.3	779.6	700

Item	Main	Standard	Rapid
	0	0	0
	13	8	5
	10	5	5
	0	0	0
	0	0	0
	0	0	0
History	23	13	10

Games since
	Main 23	Standard 13		Rapid 10		Blitz 0
Gender	Male
Age group	U10
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
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	13	7.5	57.69	65.4	1279.6	1345
Standard	8	3.5	43.75	-53.1	1316.2	1263.1
Rapid	5	4	80	255	1220.9	1475.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	23	13.5	58.7	73.9	1276	1349.9
Standard	13	6.5	50	0	1284.1	1284.1
Rapid	10	7	70	170	1265.4	1435.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1264.5	1239.1	1279.6	1200
2025-09-01	1284.8	1260.3	1279.6	1200
2025-08-01	1284.8	1260.3	1279.6	1200
2025-07-01	1284.8	1260.3	1279.6	1200
2025-06-01	1264.9	1230	1279.6	1200
2025-05-01	1264.9	1230	1279.6	1200
2025-04-01	1264.9	1230	1279.6	1200
2025-03-01	1264.9	1230	1279.6	1200
2025-02-01	1240.7	1230	1225.2	1200
2025-01-01	1240.7	1230	1225.2	1200
2024-12-01	1240.7	1230	1225.2	1200
2024-11-01	1240.7	1230	1225.2	1200
2024-10-01	1240.7	1230	1225.2	1200
2024-09-01	1240.7	1230	1225.2	1200
2024-08-01	1224.6	1230	1200	1200
2024-07-01	1224.6	1230	1200	1200
2024-06-01	1224.6	1230	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	GoForChess Junior Chess Championships 2025 (U10)	2025-09-14	2025-09-14	Standard	Johannesburg Metro (GJM)	5	3	1	Yes	Analysis
2	JMC Helpmekaar 2025 (U10)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
3	Chess Power House Feb Rapid 2025 (C)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	GoForChess Junior Chess Championships 2025 (U10)	2025-09-14	2025-09-14	Standard	Johannesburg Metro (GJM)	5	3	1	Yes	Analysis
2	JMC Helpmekaar 2025 (U10)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
3	Chess Power House Feb Rapid 2025 (C)	2025-02-02	2025-02-02	Rapid	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
4	CPH King David Linksfield Aug Rapid 2024 (D)	2024-08-18	2024-08-18	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
5	GoForChess Junior Chess Championships 2024 (Junior)	2024-05-19	2024-05-19	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament JMC Helpmekaar 2025				Tournament JMC Helpmekaar 2025
		date 2025-06-01	rnd 2	type Standard	result 1	date 2025-06-01	rnd 4	type Standard	result 1
		Opponent Lipshitz, J (Jamie)				Opponent Meijer, CM (Carlo Marius)
2	3	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament CPH King David Linksfield Aug Rapid 2024
		date 2024-08-18	rnd 2	type Rapid	result 1	date 2024-08-18	rnd 4	type Rapid	result 1
		Opponent Rubenstein, E (Ezra)				Opponent Lipshitz, J (Jamie)
3	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 4	type Rapid	result 1	date 2025-02-02	rnd 5	type Rapid	result 1
		Opponent Treger, N (Neima)				Opponent Ziperstein, D (Daniel)

#	Games	Start				End
1	3	Tournament JMC Helpmekaar 2025				Tournament JMC Helpmekaar 2025
		date 2025-06-01	rnd 2	type Standard	result 1	date 2025-06-01	rnd 4	type Standard	result 1
		Opponent Lipshitz, J (Jamie)				Opponent Meijer, CM (Carlo Marius)
2	2	Tournament GoForChess Junior Chess Championships 2024				Tournament GoForChess Junior Chess Championships 2024
		date 2024-05-19	rnd 3	type Standard	result 1	date 2024-05-19	rnd 4	type Standard	result 1
		Opponent Manchikala, V (Venkaiah Hansel)				Opponent Goshen, N (Nate)
3	1	Tournament GoForChess Junior Chess Championships 2025				Tournament GoForChess Junior Chess Championships 2025
		date 2025-09-14	rnd 2	type Standard	result 1	date 2025-09-14	rnd 2	type Standard	result 1
		Opponent Aproskie, J (Joshua)				Opponent Aproskie, J (Joshua)

#	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 2	type Rapid	result 1	date 2024-08-18	rnd 4	type Rapid	result 1
		Opponent Rubenstein, E (Ezra)				Opponent Lipshitz, J (Jamie)
2	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 4	type Rapid	result 1	date 2025-02-02	rnd 5	type Rapid	result 1
		Opponent Treger, N (Neima)				Opponent Ziperstein, D (Daniel)
3	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 2	type Rapid	result 1
		Opponent Buddah, J (Jayansh)				Opponent Marcus, Y (Yoni)

No games found.

#	Games	Start				End

#	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 2	type Rapid	result 1	date 2024-08-18	rnd 4	type Rapid	result 1
		Opponent Rubenstein, E (Ezra)				Opponent Lipshitz, J (Jamie)
2	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 4	type Rapid	result 1	date 2025-02-02	rnd 5	type Rapid	result 1
		Opponent Treger, N (Neima)				Opponent Ziperstein, D (Daniel)
3	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 2	type Rapid	result 1
		Opponent Buddah, J (Jayansh)				Opponent Marcus, Y (Yoni)

#	Games	Start				End
1	2	Tournament GoForChess Junior Chess Championships 2024				Tournament GoForChess Junior Chess Championships 2024
		date 2024-05-19	rnd 3	type Standard	result 1	date 2024-05-19	rnd 4	type Standard	result 1
		Opponent Manchikala, V (Venkaiah Hansel)				Opponent Goshen, N (Nate)
2	1	Tournament GoForChess Junior Chess Championships 2025				Tournament GoForChess Junior Chess Championships 2025
		date 2025-09-14	rnd 2	type Standard	result 1	date 2025-09-14	rnd 2	type Standard	result 1
		Opponent Aproskie, J (Joshua)				Opponent Aproskie, J (Joshua)
3	1	Tournament JMC Helpmekaar 2025				Tournament JMC Helpmekaar 2025
		date 2025-06-01	rnd 4	type Standard	result 1	date 2025-06-01	rnd 4	type Standard	result 1
		Opponent Meijer, CM (Carlo Marius)				Opponent Meijer, CM (Carlo Marius)

#	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 2	type Rapid	result 1	date 2024-08-18	rnd 4	type Rapid	result 1
		Opponent Rubenstein, E (Ezra)				Opponent Lipshitz, J (Jamie)
2	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 4	type Rapid	result 1	date 2025-02-02	rnd 5	type Rapid	result 1
		Opponent Treger, N (Neima)				Opponent Ziperstein, D (Daniel)
3	2	Tournament Chess Power House Feb Rapid 2025				Tournament Chess Power House Feb Rapid 2025
		date 2025-02-02	rnd 1	type Rapid	result 1	date 2025-02-02	rnd 2	type Rapid	result 1
		Opponent Buddah, J (Jayansh)				Opponent Marcus, Y (Yoni)

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	Lipshitz ,J (Jamie)	2	2	425	1	1	425	1	1	425	0	0	0
1	Lipshitz ,J (Jamie)	2	1183.6	1608.6	1	1196.3	1608.6	1	1175.2	1608.6	0	0	0
2	Reddy ,P (Pranav)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Reddy ,P (Pranav)	1	1307.5	882.5	1	1328.5	882.5	0	0	0	0	0	0
3	Manchikala ,V (Venkaiah Hansel)	1	1	425	1	1	425	0	0	0	0	0	0
3	Manchikala ,V (Venkaiah Hansel)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Oyetunde ,T (Tosin)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Oyetunde ,T (Tosin)	1	1240.9	815.9	1	1249.7	815.9	0	0	0	0	0	0
5	Seedat ,M (Muhammad)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Seedat ,M (Muhammad)	1	1198.4	1198.4	1	1197.9	1198.4	0	0	0	0	0	0
6	Steyn ,K (Kian)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Steyn ,K (Kian)	1	1645.1	1220.1	1	1632	1220.1	0	0	0	0	0	0
7	Aproskie ,J (Joshua)	1	1	425	1	1	425	0	0	0	0	0	0
7	Aproskie ,J (Joshua)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Meijer ,CM (Carlo Marius)	1	1	425	1	1	425	0	0	0	0	0	0
8	Meijer ,CM (Carlo Marius)	1	1339.4	1764.4	1	1323.5	1764.4	0	0	0	0	0	0
9	Priessnitz ,L (Louis)	1	1	425	1	1	425	0	0	0	0	0	0
9	Priessnitz ,L (Louis)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Gerber ,Z (Zoe)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Gerber ,Z (Zoe)	1	1269.1	844.1	1	1265.6	844.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Alter, N (Naomi Bella)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms