Chess South Africa Ratings Database

PLAYER PAGE

Personal

Thomson, A (Alexander)

Chess SA id

1120139049

FIDE id

Date of birth

2012-01-27 (U14)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

17.5

Junior GPX Points

1207.4

Item	Main	Standard	Rapid	Blitz
Rating	1361.5	1267.9	1452.9	1200
Raw rating	1361.5	1267.9	1452.9	1200
Weighted rating	1328	1236.6	1435.8	1200
Weighted performance	1340.1	1198.7	1372.5	0
Floor	861.5	767.9	952.9	700
K-factor	36	36	32	36
Min/Max rating change allowed	131.7	150.5	115.7	165.8
Highest rating	1526.8 2022-03-01	1267.9 2025-09-30	1613.6 2022-03-01	1200 2018-10-01
Highest raw rating	1361.5 2025-09-30	1267.9 2025-09-30	1452.9 2025-09-01	1200 2024-02-01
Highest weighted rating	1328 2025-09-30	1236.6 2025-09-30	1434 2025-09-01	1200 2018-10-01
Highest weighted performance	1526.8 2022-03-01	1258.4 2022-07-01	1613.6 2022-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1361.5	1267.9	1452.9	1200
Analysis
Rating	1361.5	1267.9	1452.9	1200
Raw rating	1361.5	1267.9	1452.9	1200
Weighted rating	1328	1236.6	1435.8
Weighted performance	1340.1	1198.7	1372.5
K-factor	36	36	32	36
Floor	861.5	767.9	952.9	700
Max/Min rating change allowed	131.7	150.5	115.7	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	1361.5	1267.9	1452.9	1200
New weighted rating	1331.3	1239.8	1437.5	1200
New weighted performance	1339.6	1198.3	1372	0
Temp new rating	1361.5	1267.9	1452.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1361.5	1267.9	1452.9	1200
New K-factor	36	36	32	36
New floor	861.5	767.9	952.9	700

Item	Main	Standard	Rapid
	0	0	0
	24	11	13
	32	17	15
	24	6	18
	30	12	18
	0	0	0
History	110	46	64

Games since
	Main 61	Standard 28		Rapid 33		Blitz 0
Gender	Male
Age group	U14
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2552		804		71
Male	2077		611		51
U14	437		143		11
U14 Male	327		98		7
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	330		158		33
Male	300		142		26
U14	55		31		8
U14 Male	47		26		7
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	24	14.5	60.42	88.5	1305.6	1394.1
Standard	11	5.5	50	0	1344.8	1344.8
Rapid	13	9	69.23	163.5	1272.4	1435.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	110	63.5	57.73	65.7	1279.5	1345.1
Standard	46	20	43.48	-55.4	1329.6	1274.1
Rapid	64	43.5	67.97	152.7	1243.5	1396.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1361.5	1267.9	1452.9	1200
2025-09-01	1353.1	1244.8	1452.9	1200
2025-08-01	1337	1244.8	1440.5	1200
2025-07-01	1324.2	1244.8	1430.6	1200
2025-06-01	1324.2	1244.8	1429.6	1200
2025-05-01	1324.2	1244.8	1428.2	1200
2025-04-01	1324.2	1244.8	1426.8	1200
2025-03-01	1329.9	1237.9	1426.8	1200
2025-02-01	1321.6	1237.9	1437.2	1200
2025-01-01	1321.6	1237.9	1437.2	1200
2024-12-01	1321.6	1237.9	1437.2	1200
2024-11-01	1321.6	1237.9	1437.2	1200
2024-10-01	1321.6	1237.9	1437.2	1200
2024-09-01	1298.6	1194.3	1437.2	1200
2024-08-01	1327.9	1214.1	1437.2	1200
2024-07-01	1327.9	1214.1	1437.2	1200
2024-06-01	1327.9	1214.1	1437.2	1200
2024-08-01	1320.4	1207.6	1423.4	1200
2024-04-01	1320.4	1207.6	1423.4	1200
2024-03-01	1316.7	1207.6	1437.1	1200
2024-02-01	1290.3	1207.6	1415.7	1200
2024-01-01	1290.3	1207.6	1415.7	1200
2023-12-01	1290.3	1207.6	1415.7	1200
2023-11-01	1290.3	1207.6	1415.7	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	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	2	Yes	Analysis
2	Pedro Booyse Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
3	Lower West Coast Top Schools 2025 (U13)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
4	West Coast Schools Chess Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
5	Lower West Coast Prestige 2025 (U13 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	2	Yes	Analysis
2	Pedro Booyse Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
3	Lower West Coast Top Schools 2025 (U13)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
4	West Coast Schools Chess Prestige 2025 (U13 Boys)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
5	Lower West Coast Prestige 2025 (U13 Boys)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
6	Western Cape Top Schools Championship 2024 (U13 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	3	Yes	Analysis
7	Pedro Booyse Top Schools Championships 2024 (U13)	2024-07-20	2024-07-20	Standard	West Coast (WCU)	5	5	2	Yes	Analysis
8	Lower West Top Schools 2024 (U13)	2024-05-11	2024-05-11	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
9	Western Cape PS Individuals Championship 2024 (U13 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
10	West Coast Schools Chess Prestige Championships 2024 (U13 Boys)	2024-03-09	2024-03-09	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
11	Lower West Coast Schools Chess Prestige 2024 (U13 Boys)	2024-02-17	2024-02-17	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
12	West Coast Primary Schools Grand Challenge League 2023 (Primary School)	2023-10-21	2023-10-21	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
13	Western Cape Top Schools 2023 (U11 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
14	Pedro Booyse Top Schools Round 2 2023 (U11)	2023-08-22	2023-08-22	Rapid	West Coast (WCU)	5	5	4	Yes	Analysis
15	Pedro Booyse Top Schools 2023 (U11)	2023-07-29	2023-07-29	Rapid	West Coast (WCU)	5	4	3	Yes	Analysis
16	Lower West Coast Top Schools Championships 2023 (U9+U11)	2023-06-10	2023-06-10	Rapid	West Coast (WCU)	5	4	3.5	Yes	Analysis
17	Pedro Booyse Top Schools 2022 (U11 Open)	2022-07-23	2022-07-23	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
18	Onder-Weskus Top Skole 2022 (O11+O13 Meisies)	2022-06-04	2022-06-04	Rapid	West Coast (WCU)	6	4	0	Yes	Analysis
19	Western Cape Schools 2022 (U11 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
20	West Coast Schools Chess Prestige Leg 2 2022 (U11 Boys)	2022-04-23	2022-04-23	Rapid	West Coast (WCU)	5	5	2	Yes	Analysis
21	West Coast Schools Chess Prestige Leg 1 2022 (U11 Boys)	2022-04-09	2022-04-09	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
22	Lower West Coast Schools Prestige 2022 (U11 Boys)	2022-03-19	2022-03-19	Rapid	West Coast (WCU)	5	5	5	Yes	Analysis

#	Games	Start				End
1	7	Tournament West Coast Primary Schools Grand Challenge League 2023				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2024-02-17	rnd 4	type Rapid	result 1
		Opponent Boas, F (Fransisca)				Opponent Brand, E (Evan)
2	6	Tournament Lower West Coast Top Schools Championships 2023				Tournament Pedro Booyse Top Schools 2023
		date 2023-06-10	rnd 1	type Rapid	result 1	date 2023-07-29	rnd 3	type Rapid	result 1
		Opponent Klifas, X (Xhaviar)				Opponent Kujinga, T (Tawanayasha)
3	6	Tournament Lower West Coast Schools Prestige 2022				Tournament West Coast Schools Chess Prestige Leg 1 2022
		date 2022-03-19	rnd 1	type Rapid	result 1	date 2022-04-09	rnd 2	type Rapid	result 1
		Opponent Hunter, T (Tyrone)				Opponent Maletta, S (Sherevitho)

#	Games	Start				End
1	4	Tournament Pedro Booyse Top Schools 2022				Tournament Pedro Booyse Top Schools 2022
		date 2022-07-23	rnd 2	type Standard	result 1	date 2022-07-23	rnd 5	type Standard	result 1
		Opponent Engelbrecht, J (Janke)				Opponent Engelbrecht, J (Janke)
2	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 5	type Standard	result 0.5
		Opponent Muller, A (Adrian)				Opponent Erasmus, H (Heinrich)
3	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Horse, M (Mikyle)				Opponent Roman, F (Fernando)

#	Games	Start				End
1	7	Tournament Lower West Top Schools 2024				Tournament Lower West Coast Prestige 2025
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Benjamin, E (Entwan)				Opponent Eksteen, T (Theunis)
2	7	Tournament West Coast Primary Schools Grand Challenge League 2023				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2024-02-17	rnd 4	type Rapid	result 1
		Opponent Boas, F (Fransisca)				Opponent Brand, E (Evan)
3	6	Tournament Lower West Coast Top Schools Championships 2023				Tournament Pedro Booyse Top Schools 2023
		date 2023-06-10	rnd 1	type Rapid	result 1	date 2023-07-29	rnd 3	type Rapid	result 1
		Opponent Klifas, X (Xhaviar)				Opponent Kujinga, T (Tawanayasha)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament West Coast Primary Schools Grand Challenge League 2023				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2024-02-17	rnd 4	type Rapid	result 1
		Opponent Boas, F (Fransisca)				Opponent Brand, E (Evan)
2	6	Tournament Lower West Coast Schools Prestige 2022				Tournament West Coast Schools Chess Prestige Leg 1 2022
		date 2022-03-19	rnd 1	type Rapid	result 1	date 2022-04-09	rnd 2	type Rapid	result 1
		Opponent Hunter, T (Tyrone)				Opponent Maletta, S (Sherevitho)
3	4	Tournament Lower West Coast Top Schools 2025				Tournament Pedro Booyse Top Schools 2025
		date 2025-06-14	rnd 4	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Bredenkamp, A (Arija)				Opponent Van Zyl, W (WJ)

#	Games	Start				End
1	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Horse, M (Mikyle)				Opponent Roman, F (Fernando)
2	2	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 4	type Standard	result 1	date 2024-09-01	rnd 5	type Standard	result 1
		Opponent Stock, Z (Zack)				Opponent Goncalves Alho, M (Miguel)
3	2	Tournament Pedro Booyse Top Schools 2022				Tournament Pedro Booyse Top Schools 2022
		date 2022-07-23	rnd 2	type Standard	result 1	date 2022-07-23	rnd 3	type Standard	result 1
		Opponent Engelbrecht, J (Janke)				Opponent Greeff, G (Giteau)

#	Games	Start				End
1	7	Tournament Lower West Top Schools 2024				Tournament Lower West Coast Prestige 2025
		date 2024-05-11	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Benjamin, E (Entwan)				Opponent Eksteen, T (Theunis)
2	7	Tournament West Coast Primary Schools Grand Challenge League 2023				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2024-02-17	rnd 4	type Rapid	result 1
		Opponent Boas, F (Fransisca)				Opponent Brand, E (Evan)
3	6	Tournament Lower West Coast Schools Prestige 2022				Tournament West Coast Schools Chess Prestige Leg 1 2022
		date 2022-03-19	rnd 1	type Rapid	result 1	date 2022-04-09	rnd 2	type Rapid	result 1
		Opponent Hunter, T (Tyrone)				Opponent Maletta, S (Sherevitho)

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	Greeff ,G (Giteau)	5	1	-255	4	1	-212.5	1	0	-425	0	0	0
1	Greeff ,G (Giteau)	5	1355.9	1100.9	4	1259.3	1143.4	1	1428.6	930.9	0	0	0
2	Olivier ,M (Micarlo)	4	1	-212.5	2	1	0	2	0	-425	0	0	0
2	Olivier ,M (Micarlo)	4	1278.7	1066.2	2	1212.6	1278.7	2	1380.3	853.7	0	0	0
3	Koopman ,V (Virat)	4	2	0	1	0	-425	3	2	141.7	0	0	0
3	Koopman ,V (Virat)	4	1295.4	1295.4	1	1244.8	870.4	3	1381.2	1437.1	0	0	0
4	Klaasens ,J (Jemaine)	3	1	-141.7	0	0	0	3	1	-141.7	0	0	0
4	Klaasens ,J (Jemaine)	3	1283	1141.3	0	0	0	3	1276.5	1141.3	0	0	0
5	Cardinal ,J (Jacelynn)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Cardinal ,J (Jacelynn)	2	1353.7	1141.2	2	1360.1	1141.2	0	0	0	0	0	0
6	Engelbrecht ,J (Janke)	2	2	425	2	2	425	0	0	0	0	0	0
6	Engelbrecht ,J (Janke)	2	1177.8	1602.8	2	1187.1	1602.8	0	0	0	0	0	0
7	Benjamin ,E (Entwan)	2	1	0	1	0	-425	1	1	425	0	0	0
7	Benjamin ,E (Entwan)	2	1307.7	1307.7	1	1205.1	882.7	1	1365.8	1732.7	0	0	0
8	Appollis ,J (Jaymon)	2	1	0	1	0	-425	1	1	425	0	0	0
8	Appollis ,J (Jaymon)	2	1221.6	1221.6	1	1200	796.6	1	1217.2	1646.6	0	0	0
9	Maarman ,B (Blayden)	2	2	425	0	0	0	2	2	425	0	0	0
9	Maarman ,B (Blayden)	2	1121.6	1546.6	0	0	0	2	1150.4	1546.6	0	0	0
10	Pienaar ,F (Francisca)	2	0	-425	0	0	0	2	0	-425	0	0	0
10	Pienaar ,F (Francisca)	2	1178.5	753.5	0	0	0	2	1184.8	753.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Thomson, A (Alexander)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms