Chess South Africa Ratings Database

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Personal

Bolton, A (Alyssa)

Chess SA id

2120138744

FIDE id

534009655

Date of birth

2012-11-30 (U16)

Gender

Female

Region

Cape Town (WCT)

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	1443.8	1446.6	1418.5	1200
Raw rating	1443.8	1446.6	1418.5	1200
Weighted rating	1403	1392.4	1411.4	1200
Weighted performance	1343	1328.8	1169.6	0
Floor	951.1	955.1	970.9	700
K-factor	32	32	32	36
Min/Max rating change allowed	117.2	116.7	121.5	165.8
Highest rating	1475.5 2024-05-01	1455.1 2025-04-01	1486.7 2024-05-01	1200 2018-10-01
Highest raw rating	1451.1 2025-04-01	1455.1 2025-04-01	1470.9 2024-06-01	1200 2024-03-01
Highest weighted rating	1403 2026-01-01	1392.4 2026-01-01	1394.4 2025-08-01	1200 2018-10-01
Highest weighted performance	1475.5 2025-04-01	1413 2025-01-01	1486.7 2024-05-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-12	-17.6	0	0
New rating	1431.9	1429	1418.5	1200
Analysis
Rating	1443.8	1446.6	1418.5	1200
Raw rating	1443.8	1446.6	1418.5	1200
Weighted rating	1403	1392.4	1411.4
Weighted performance	1343	1328.8	1169.6
K-factor	32	32	32	36
Floor	951.1	955.1	970.9	700
Max/Min rating change allowed	117.2	116.7	121.5	165.8
Games	5	5	0	0
Score	3	3	0	0
Expected score	3.37	3.55	0	0
Score-Expected	-0.37	-0.55	0	0
Temp raw +/-	-12	-17.6	0	0
Final raw +/-	-12	-17.6	0	0
New raw rating	1431.9	1429	1418.5	1200
New weighted rating	1407.4	1397.8	1413.4	1200
New weighted performance	1347.3	1332.1	1160.5	0
Temp new rating	1431.9	1429	1418.5	1200
Temp new rating +/-	-12	-17.6	0	0
Final new rating +/-	-12	-17.6	0	0
New rating	1431.9	1429	1418.5	1200
New K-factor	32	32	32	36
New floor	951.1	955.1	970.9	700

Item	Main	Standard	Rapid
	0	0	0
	74	67	7
	70	39	31
	39	17	22
	23	12	11
	0	0	0
History	206	135	71

Games since
	Main 144	Standard 106		Rapid 38		Blitz 0
Gender	Female
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1792		551		272
Female	274		97		44
U14	272		90		42
U14 Female	60		24		9
Standard
	RSA		Province		Region
Overall	1717		468		239
Female	278		92		41
U14	259		80		35
U14 Female	64		24		10
Rapid
	RSA		Province		Region
Overall	452		225		108
Female	52		29		6
U14	84		47		22
U14 Female	15		9		2
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	74	47.5	64.19	120.6	1306.7	1427.3
Standard	67	42.5	63.43	114.2	1310.7	1424.9
Rapid	7	5	71.43	182.1	1267.9	1450
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	206	124.5	60.44	88.7	1275.3	1364.1
Standard	135	80.5	59.63	81.9	1298	1379.9
Rapid	71	44	61.97	101.8	1232.3	1334
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1443.8	1446.6	1418.5	1200
2025-11-30	1438.7	1436.7	1418.5	1200
2025-11-01	1438.7	1436.7	1418.5	1200
2025-09-30	1415.3	1406	1418.5	1200
2025-09-01	1415.3	1406	1418.5	1200
2025-08-01	1415.3	1406	1418.5	1200
2025-07-01	1415.3	1406	1418.5	1200
2025-06-01	1440.9	1444	1418.5	1200
2025-05-01	1427.7	1428.6	1418.5	1200
2025-04-01	1451.1	1455.1	1418.5	1200
2025-03-01	1374.2	1360.5	1403.4	1200
2025-02-01	1372.7	1354	1403.4	1200
2025-01-01	1392.9	1380	1403.4	1200
2024-12-01	1342.3	1321	1403.4	1200
2024-11-01	1342.3	1321	1403.4	1200
2024-10-01	1320	1289	1403.4	1200
2024-09-01	1320	1289	1403.4	1200
2024-11-01	1320	1289	1403.4	1200
2024-07-01	1390.3	1334.4	1470.9	1200
2024-06-01	1407.6	1343.3	1470.9	1200
2024-05-01	1307.9	1291.1	1282.6	1200
2024-04-01	1297.6	1291.1	1267.8	1200
2024-03-01	1287.7	1277.4	1267.8	1200
2024-02-01	1267.5	1236.7	1277.5	1200

Comming soon.

Tournaments

History

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (B)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (B)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Helderberg Chess Club Open 2026 (B)	2026-01-17	2026-01-17	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
2	2025 Mzansi Individual Championships (U14 Girls)	2025-12-17	2025-12-20	Standard	Nelson Mandela Bay (ENM)	6	4	2	Yes	Analysis
3	2025 Mzansi Inter Provincial Team Championships (U14 Girls)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	4	4	Yes	Analysis
4	A & A Invitational Chess Tournament 2025 (U12+U14)	2025-11-29	2025-11-29	Standard	Cape Town (WCT)	5	4	1	Yes	Analysis
5	Cape Town Chess Federation Club League 2025 (E)	2025-08-16	2025-08-23	Standard	Cape Town (WCT)	6	3	2	Yes	Analysis
6	Grant East Annual Primary School Invitational Chess Tournament 2025 (U13 Girls)	2025-10-18	2025-10-18	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
7	Helderberg Chess Club Open 2025 (U13)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
8	Cape Town Chess Junior League 2025 (U14)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
9	Western Cape Schools Individual Championship 2025 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
10	South African Junior Closed Chess Championships 2025 (U14 Girls)	2025-03-31	2025-04-05	Standard	Cape Winelands (WCW)	9	9	4	Yes	Analysis
11	Cape Town Open Chess Festival 2025 (U14)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
12	Steinitz Festival 2025 (U14)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	5	Yes	Analysis
13	Western Cape Closed 2025 (U14)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
14	CT Metro Schools Individual Closed 2025 (U13 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
15	Mary-Anne Bartels Closed Chess Tournament 2025 (U13)	2025-02-22	2025-02-22	Standard	Cape Town (WCT)	5	5	5	Yes	Analysis
16	CT Metro District East Schools Chess Individuals Trials 2025 (U13 Girls)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
17	Helderberg Chess Club PS Development Tournament 2025 (U13 Girls)	2025-01-25	2025-01-25	Standard	Cape Town (WCT)	5	4	1.5	Yes	Analysis
18	Mzansi Interprovincial Youth Chess Championships 2024 (U14 Girls Combined)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	5	Yes	Analysis
19	Grant East Annual Primary School Invitational Chess Tournament 2024 (U13)	2024-10-05	2024-10-05	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
20	CT Metro District East Top Schools Chess 2024 (U13 Mixed)	2024-07-27	2024-07-28	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
21	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
22	Cape Town Chess Federation Closed Chess Championships 2024 (U14)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
23	Cape Town Junior League Finals 2024 (U13 Girls A)	2024-05-18	2024-05-18	Rapid	Cape Town (WCT)	5	4	4	Yes	Analysis
24	Steinitz Chess Festival 2024 (U14)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
25	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
26	Hermanus Chess Club Open 2024 (Intermediate)	2024-04-20	2024-04-20	Rapid	Overberg (WOS)	7	7	2	Yes	Analysis
27	Cape Town Junior League Qualifier 2024 (U13 Girls)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	5	5	Yes	Analysis
28	Cape Town Metro Schools Chess Closed Individuals 2024 (U13 Girls)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
29	Mary-Anne Bartels Closed Chess Tournament 2024 (U13 Mixed)	2024-02-24	2024-02-24	Rapid	Cape Town (WCT)	5	5	2.5	Yes	Analysis
30	CT District East Schools Chess Individuals Trails 2024 (U13 Girls)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	4	3	Yes	Analysis
31	Grant East Primary School Invitational Chess Tournament 2023 (U11 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	5	3	Yes	Analysis
32	CT Metro District East Top Schools Chess 2023 (U11 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	7	6	3.5	Yes	Analysis
33	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
34	Rhenish Primary Tournament 2023 (U12)	2023-05-13	2023-05-13	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
35	Cape Town Metro Schools Chess Closed Individuals 2023 (U11 Girls)	2023-03-03	2023-03-04	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis
36	Mary-Anne Bartels Chess Tournament 2023 (U11)	2023-02-21	2023-02-21	Rapid	Cape Town (WCT)	5	5	4	Yes	Analysis
37	District East Schools Chess Individual Trials 2023 (U11 Girls)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
38	Metro Rapid 2022 (U11 Girls)	2022-10-22	2022-10-22	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
39	Western Cape Schools 2022 (U11 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	2.5	Yes	Analysis
40	Metro WP Schools Chess Trials 2022 (U11 Girls)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
41	2022 East Dist Individuals (U11)	2022-03-13	2022-03-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Hermanus Chess Club Open 2024
		date 2024-03-03	rnd 4	type Standard	result 1	date 2024-04-20	rnd 1	type Rapid	result 1
		Opponent Gaibe, A (Aisha)				Opponent Smit, M (Mario)
2	7	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Kuhn, J (Jm)				Opponent Gierdien, H (Huda)
3	5	Tournament South African Junior Closed Chess Championships 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-05	rnd 9	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Du Preez, A (Alet)				Opponent Booysen, G (Giavanna)

#	Games	Start				End
1	7	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Kuhn, J (Jm)				Opponent Gierdien, H (Huda)
2	6	Tournament Cape Town Metro Schools Chess Closed Individuals 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-03-03	rnd 4	type Standard	result 1	date 2024-05-04	rnd 3	type Standard	result 1
		Opponent Gaibe, A (Aisha)				Opponent Jacobs, T (Teleah)
3	5	Tournament South African Junior Closed Chess Championships 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-05	rnd 9	type Standard	result 1	date 2025-05-17	rnd 1	type Standard	result 1
		Opponent Du Preez, A (Alet)				Opponent Booysen, G (Giavanna)

#	Games	Start				End
1	7	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Hermanus Chess Club Open 2024
		date 2024-02-24	rnd 5	type Rapid	result 1	date 2024-04-20	rnd 1	type Rapid	result 1
		Opponent Enslin, B (Blake Andrew)				Opponent Smit, M (Mario)
2	5	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2023-11-04	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Arrison, J (Jerome)				Opponent Jooste, L (Liam)
3	4	Tournament Cape Town Junior League Finals 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-05-18	rnd 1	type Rapid	result 1	date 2024-05-18	rnd 5	type Rapid	result 1
		Opponent Liu, A (Amy)				Opponent Qoto, A (Asivile)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Kuhn, J (Jm)				Opponent Gierdien, H (Huda)
2	6	Tournament Cape Town Junior League Qualifier 2024				Tournament Hermanus Chess Club Open 2024
		date 2024-04-06	rnd 1	type Rapid	result 1	date 2024-04-20	rnd 1	type Rapid	result 1
		Opponent Nobanda, S (Siphokuhle)				Opponent Smit, M (Mario)
3	5	Tournament Western Cape PS Individuals Championship 2024				Tournament Steinitz Chess Festival 2024
		date 2024-05-05	rnd 6	type Standard	result 1	date 2024-05-11	rnd 4	type Rapid	result 1
		Opponent Julies, M (Miche)				Opponent Damane, L (Lukhanyo)

#	Games	Start				End
1	7	Tournament Mary-Anne Bartels Closed Chess Tournament 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 1
		Opponent Kuhn, J (Jm)				Opponent Gierdien, H (Huda)
2	4	Tournament CT Metro Schools Individual Closed 2025				Tournament Western Cape Closed 2025
		date 2025-03-02	rnd 5	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Wilson, EM (Emlyn Marissa)				Opponent Titus, C (Carlisle)
3	4	Tournament Mzansi Interprovincial Youth Chess Championships 2024				Tournament Mzansi Interprovincial Youth Chess Championships 2024
		date 2024-12-17	rnd 3	type Standard	result 1	date 2024-12-18	rnd 6	type Standard	result 1
		Opponent Mkhasibe, NZ (Nobuhle)				Opponent Campher, H (Hannah)

#	Games	Start				End
1	7	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Hermanus Chess Club Open 2024
		date 2024-02-24	rnd 5	type Rapid	result 1	date 2024-04-20	rnd 1	type Rapid	result 1
		Opponent Enslin, B (Blake Andrew)				Opponent Smit, M (Mario)
2	4	Tournament Cape Town Junior League Finals 2024				Tournament Cape Town Junior League Finals 2024
		date 2024-05-18	rnd 1	type Rapid	result 1	date 2024-05-18	rnd 5	type Rapid	result 1
		Opponent Liu, A (Amy)				Opponent Qoto, A (Asivile)
3	4	Tournament Steinitz Chess Festival 2024				Tournament Steinitz Chess Festival 2024
		date 2024-05-11	rnd 1	type Rapid	result 1	date 2024-05-11	rnd 4	type Rapid	result 1
		Opponent Smith, H (Henlo)				Opponent Damane, L (Lukhanyo)

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	Liu ,A (Amy)	4	1	-212.5	3	0	-425	1	1	425	0	0	0
1	Liu ,A (Amy)	4	1458.8	1246.3	3	1429.9	1033.8	1	1453.1	1883.8	0	0	0
2	Pfukwa ,P (Palesa)	4	0	-425	3	0	-425	1	0	-425	0	0	0
2	Pfukwa ,P (Palesa)	4	1386.6	961.6	3	1415.8	961.6	1	1200	961.6	0	0	0
3	Webb ,A (Amori)	4	4	425	3	3	425	1	1	425	0	0	0
3	Webb ,A (Amori)	4	1262.3	1687.3	3	1263	1687.3	1	1222.5	1687.3	0	0	0
4	Damane ,L (Lukhanyo)	4	3.5	318.8	2	1.5	212.5	2	2	425	0	0	0
4	Damane ,L (Lukhanyo)	4	1331.5	1650.3	2	1278.2	1544	2	1334.6	1756.5	0	0	0
5	Janse Van Rensburg ,T (Tj)	3	3	425	1	1	425	2	2	425	0	0	0
5	Janse Van Rensburg ,T (Tj)	3	1213.2	1638.2	1	1221.4	1638.2	2	1210.4	1638.2	0	0	0
6	Moses ,J (Jay-Leigh)	2	1	0	2	1	0	0	0	0	0	0	0
6	Moses ,J (Jay-Leigh)	2	1390.8	1390.8	2	1394	1390.8	0	0	0	0	0	0
7	Sibidla ,O (Onesisa)	2	2	425	2	2	425	0	0	0	0	0	0
7	Sibidla ,O (Onesisa)	2	1214.4	1639.4	2	1226.1	1639.4	0	0	0	0	0	0
8	Smith ,Z (Zion)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Smith ,Z (Zion)	2	1620.1	1195.1	2	1583	1195.1	0	0	0	0	0	0
9	Campher ,H (Hannah)	2	1	0	2	1	0	0	0	0	0	0	0
9	Campher ,H (Hannah)	2	1421.6	1421.6	2	1463.9	1421.6	0	0	0	0	0	0
10	Sauls ,PQ (Piper)	2	2	425	2	2	425	0	0	0	0	0	0
10	Sauls ,PQ (Piper)	2	1166.6	1591.6	2	1172	1591.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Bolton, A (Alyssa)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms