Chess South Africa Ratings Database

PLAYER PAGE

Personal

Bolton, NA (Naomi)

Chess SA id

280038951

FIDE id

Date of birth

1980-10-11 (Adult)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1378.9	1374.1	1284.9	1302
Raw rating	1378.9	1374.1	1284.9	1302
Weighted rating	1343.7	1353	1256.9	1301
Weighted performance	1284	0	0	0
Floor	878.9	882.7	802	802
K-factor	36	36	36	36
Min/Max rating change allowed	128.5	129.4	146.9	143.4
Highest rating	1378.9 2025-04-01	1517.1 2024-09-01	1302 2024-02-01	1302 2024-02-01
Highest raw rating	1378.9 2025-04-01	1382.7 2024-12-01	1302 2024-02-01	1302 2024-02-01
Highest weighted rating	1332.1 2025-08-01	1344.1 2025-08-01	1302 2024-06-01	1298.6 2025-08-01
Highest weighted performance	1371.4 2025-04-01	1517.1 2024-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1378.9	1374.1	1284.9	1302
Analysis
Rating	1378.9	1374.1	1284.9	1302
Raw rating	1378.9	1374.1	1284.9	1302
Weighted rating	1343.7	1353	1256.9
Weighted performance	1284	0	0
K-factor	36	36	36	36
Floor	878.9	882.7	802	802
Max/Min rating change allowed	128.5	129.4	146.9	143.4
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	1378.9	1374.1	1284.9	1302
New weighted rating	1348.7	1356.6	1259.6	1301.7
New weighted performance	1283.5	0	0	0
Temp new rating	1378.9	1374.1	1284.9	1302
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1378.9	1374.1	1284.9	1302
New K-factor	36	36	36	36
New floor	878.9	882.7	802	802

Item	Main	Standard	Rapid
	0	0	0
	13	6	7
	36	19	17
	0	0	0
	0	0	0
	0	0	0
History	49	25	24

Games since
	Main 49	Standard 25		Rapid 24		Blitz 0
Gender	Female
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2385		733		316
Female	419		167		62
Adult	524		145		85
Adult Female	33		15		10
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1127		580		238
Female	199		118		33
Adult	199		77		45
Adult Female	5		3		1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-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	53.85	32.7	1410	1442.7
Standard	6	4	66.67	141.7	1289	1430.7
Rapid	7	3	42.86	-60.7	1513.7	1453
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	49	25	51.02	8.7	1358.7	1367.4
Standard	25	16	64	119	1308.2	1427.2
Rapid	24	9	37.5	-106.2	1411.3	1305
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1378.9	1374.1	1284.9	1302
2025-09-01	1378.9	1374.1	1284.9	1302
2025-08-01	1378.9	1374.1	1284.9	1302
2025-07-01	1378.9	1374.1	1284.9	1302
2025-06-01	1378.9	1374.1	1284.9	1302
2025-05-01	1378.9	1374.1	1284.9	1302
2025-04-01	1378.9	1374.1	1284.9	1302
2025-03-01	1344.9	1354.3	1229.9	1302
2025-02-01	1344.9	1354.3	1228.7	1302
2025-01-01	1344.9	1354.3	1218.1	1302
2024-12-01	1352.1	1382.7	1218.1	1302
2024-11-01	1320.4	1357.1	1218.1	1302
2024-10-01	1320.4	1357.1	1218.1	1302
2024-09-01	1264	1302	1218.1	1302
2024-08-01	1264	1302	1218.1	1302
2024-07-01	1264	1302	1218.1	1302
2024-06-01	1264	1302	1218.1	1302
2024-08-01	1266	1302	1217	1302
2024-04-01	1302	1302	1302	1302
2024-03-01	1302	1302	1302	1302
2024-02-01	1302	1302	1302	1302
2024-01-01	1302	1302	1302	1302
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	Cape Town Open Chess Festival 2025 (C)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
2	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Open Chess Festival 2025 (C)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
2	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	3	Yes	Analysis
3	Mzansi Interprovincial Youth Chess Championships 2024 (Adult Ladies Combined)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	3.5	Yes	Analysis
4	Helderberg Chess Club Open 2024 (B)	2024-11-09	2024-11-10	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
5	CT League 2024 (D)	2024-08-03	2024-08-03	Standard	Cape Town (WCT)	6	6	4.5	Yes	Analysis
6	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	5	3	Yes	Analysis
7	Steinitz Chess Festival 2024 (Open Rapid)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
8	Hermanus Chess Club Open 2024 (Intermediate)	2024-04-20	2024-04-20	Rapid	Overberg (WOS)	7	6	1	Yes	Analysis

#	Games	Start				End
1	6	Tournament CT League 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Sihamba, S (Somila)				Opponent Cordier, L (Louis)
2	4	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-22	rnd 1	type Standard	result 0.5	date 2025-03-23	rnd 4	type Standard	result 0.5
		Opponent Ali, U (Usher)				Opponent Ziegers, CN (Chad Neil)
3	3	Tournament Helderberg Chess Club Open 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-10	rnd 6	type Standard	result 1	date 2024-12-16	rnd 2	type Standard	result 1
		Opponent Marais, A (Alexander)				Opponent Mitchells, J (Jamie-Lee)

#	Games	Start				End
1	6	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Cape Town Open Chess Festival 2025
		date 2024-12-18	rnd 6	type Standard	result 1	date 2025-03-23	rnd 4	type Standard	result 0.5
		Opponent Gulwa, Z (Zintle)				Opponent Ziegers, CN (Chad Neil)
2	6	Tournament CT League 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-08-03	rnd 2	type Standard	result 1	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Sihamba, S (Somila)				Opponent Cordier, L (Louis)
3	3	Tournament Helderberg Chess Club Open 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-10	rnd 6	type Standard	result 1	date 2024-12-16	rnd 2	type Standard	result 1
		Opponent Marais, A (Alexander)				Opponent Mitchells, J (Jamie-Lee)

#	Games	Start				End
1	3	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Budge, B (Benjamin)
2	2	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 2	type Rapid	result 1	date 2025-03-15	rnd 3	type Rapid	result 1
		Opponent Hong, D (Devon)				Opponent Johnson, B (Brian)
3	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 6	type Rapid	result 1	date 2025-03-15	rnd 6	type Rapid	result 1
		Opponent Page, R (Romayo)				Opponent Page, R (Romayo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament CT League 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Panduva, O (Ongeza)				Opponent Cordier, L (Louis)
2	3	Tournament Helderberg Chess Club Open 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-10	rnd 6	type Standard	result 1	date 2024-12-16	rnd 2	type Standard	result 1
		Opponent Marais, A (Alexander)				Opponent Mitchells, J (Jamie-Lee)
3	3	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Budge, B (Benjamin)

#	Games	Start				End
1	4	Tournament CT League 2024				Tournament Helderberg Chess Club Open 2024
		date 2024-08-03	rnd 4	type Standard	result 1	date 2024-11-09	rnd 1	type Standard	result 1
		Opponent Panduva, O (Ongeza)				Opponent Cordier, L (Louis)
2	3	Tournament Helderberg Chess Club Open 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-11-10	rnd 6	type Standard	result 1	date 2024-12-16	rnd 2	type Standard	result 1
		Opponent Marais, A (Alexander)				Opponent Mitchells, J (Jamie-Lee)
3	2	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-03-22	rnd 3	type Standard	result 1
		Opponent Butau, C (Claude)				Opponent Herder, J (Jovanne)

#	Games	Start				End
1	3	Tournament Curro Durbanville Chess Rapid Open 2024				Tournament Curro Durbanville Chess Rapid Open 2024
		date 2024-07-13	rnd 2	type Rapid	result 1	date 2024-07-13	rnd 4	type Rapid	result 1
		Opponent Bolton, A (Alyssa)				Opponent Budge, B (Benjamin)
2	2	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 2	type Rapid	result 1	date 2025-03-15	rnd 3	type Rapid	result 1
		Opponent Hong, D (Devon)				Opponent Johnson, B (Brian)
3	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 6	type Rapid	result 1	date 2025-03-15	rnd 6	type Rapid	result 1
		Opponent Page, R (Romayo)				Opponent Page, R (Romayo)

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	De Silva ,H (Handry)	1	1	425	1	1	425	0	0	0	0	0	0
1	De Silva ,H (Handry)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Brink ,K (Kiran)	1	1	425	1	1	425	0	0	0	0	0	0
2	Brink ,K (Kiran)	1	1239.2	1664.2	1	1285.5	1664.2	0	0	0	0	0	0
3	Mitchells ,J (Jamie-Lee)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mitchells ,J (Jamie-Lee)	1	1514.7	1939.7	1	1486	1939.7	0	0	0	0	0	0
4	Marais ,A (Alexander)	1	1	425	1	1	425	0	0	0	0	0	0
4	Marais ,A (Alexander)	1	1455.2	1880.2	1	1388.5	1880.2	0	0	0	0	0	0
5	Ali ,U (Usher)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Ali ,U (Usher)	1	1194.8	1194.8	1	1177.7	1194.8	0	0	0	0	0	0
6	Gulwa ,Z (Zintle)	1	1	425	1	1	425	0	0	0	0	0	0
6	Gulwa ,Z (Zintle)	1	1250.7	1675.7	1	1231.4	1675.7	0	0	0	0	0	0
7	Galant ,R (Rozaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Galant ,R (Rozaan)	1	1284.1	859.1	1	1289	859.1	0	0	0	0	0	0
8	Sihamba ,S (Somila)	1	1	425	1	1	425	0	0	0	0	0	0
8	Sihamba ,S (Somila)	1	1298.1	1723.1	1	1279.7	1723.1	0	0	0	0	0	0
9	Van Der Heyde ,J (Jody)	1	1	425	1	1	425	0	0	0	0	0	0
9	Van Der Heyde ,J (Jody)	1	1218.3	1643.3	1	1200	1643.3	0	0	0	0	0	0
10	Panduva ,O (Ongeza)	1	1	425	1	1	425	0	0	0	0	0	0
10	Panduva ,O (Ongeza)	1	1123	1548	1	1117.6	1548	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Bolton, NA (Naomi)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms