Chess South Africa Ratings Database

PLAYER PAGE

Personal

Westoby, A (Adam)

Chess SA id

1130148617

FIDE id

Date of birth

2013-07-24 (U14)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1449.4	1459.7	1290.1	1066.6
Raw rating	1449.4	1459.7	1290.1	1066.6
Weighted rating	1403.9	1410.1	1278.8	1066.6
Weighted performance	1409.5	1454.7	1225	0
Floor	977.4	1026.5	793.3	700
K-factor	32	32	36	36
Min/Max rating change allowed	116.2	114.5	145.8	200.5
Highest rating	1520.7 2024-01-01	1543.1 2024-01-01	1437.8 2023-09-01	1200 2018-10-01
Highest raw rating	1477.4 2024-03-01	1526.5 2024-03-01	1293.3 2025-09-30	1200 2019-12-01
Highest weighted rating	1477.4 2025-05-05	1526.5 2025-02-01	1276.9 2025-11-30	1200 2018-10-01
Highest weighted performance	1520.7 2024-01-01	1543.1 2024-01-01	1437.8 2023-09-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1449.4	1459.7	1290.1	1066.6
Analysis
Rating	1449.4	1459.7	1290.1	1066.6
Raw rating	1449.4	1459.7	1290.1	1066.6
Weighted rating	1403.9	1410.1	1278.8
Weighted performance	1409.5	1454.7	1225
K-factor	32	32	36	36
Floor	977.4	1026.5	793.3	700
Max/Min rating change allowed	116.2	114.5	145.8	200.5
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	1449.4	1459.7	1290.1	1066.6
New weighted rating	1407.4	1413.6	1280.6	1066.6
New weighted performance	1400.2	1445	1216.5	0
Temp new rating	1449.4	1459.7	1290.1	1066.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1449.4	1459.7	1290.1	1066.6
New K-factor	32	32	36	36
New floor	977.4	1026.5	793.3	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	81	64	17	0
	64	51	13	0
	79	40	24	15
	0	0	0	0
	0	0	0	0
History	224	155	54	15

Games since
	Main 152	Standard 115		Rapid 37		Blitz 0
Gender	Male
Age group	U14
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2133		747		248
Male	1746		604		206
U14	341		115		33
U14 Male	250		82		22
Standard
	RSA		Province		Region
Overall	1918		706		226
Male	1570		573		185
U14	307		105		30
U14 Male	224		75		20
Rapid
	RSA		Province		Region
Overall	1131		202		91
Male	912		161		82
U14	249		39		12
U14 Male	183		23		8
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	81	42	51.85	15.7	1385.8	1401.6
Standard	64	33	51.56	13.3	1379	1392.3
Rapid	17	9	52.94	25	1411.4	1436.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	224	119	53.12	26.6	1336.2	1362.8
Standard	155	87.5	56.45	54.8	1329.9	1384.7
Rapid	54	28.5	52.78	23.6	1355.7	1379.3
Blitz	15	3	20	-255	1331.3	1076.3

Date	Main	Standard	Rapid	Blitz
2026-01-01	1449.4	1459.7	1290.1	1066.6
2025-11-30	1404.6	1416.1	1290.1	1066.6
2025-11-01	1415.2	1416.1	1293.3	1066.6
2025-09-30	1429.8	1435	1293.3	1066.6
2025-09-01	1399.7	1404.9	1290.1	1066.6
2025-08-01	1396.5	1403.6	1290.1	1066.6
2025-07-01	1396.5	1403.4	1290.1	1066.6
2025-06-01	1394.4	1400.9	1290.1	1066.6
2025-05-01	1417	1417.6	1290.1	1066.6
2025-04-01	1417	1417.6	1290.1	1066.6
2025-03-01	1387.1	1395.4	1290.1	1066.6
2025-02-01	1390.8	1397.5	1257	1066.6
2025-01-01	1390.8	1397.5	1257	1066.6
2024-12-01	1370.3	1378.6	1257	1066.6
2024-11-01	1370.3	1378.6	1257	1066.6
2024-10-01	1377.9	1378.6	1246.2	1066.6
2024-09-01	1382.8	1378.6	1245.5	1066.6
2024-11-01	1373.8	1370	1245.5	1066.6
2024-07-01	1346.2	1336.7	1245.5	1066.6
2024-06-01	1417.6	1424.7	1245.5	1066.6
2024-05-01	1427.7	1452.9	1245.5	1066.6
2024-04-01	1427.7	1452.9	1245.5	1066.6
2024-03-01	1477.4	1526.5	1245.5	1066.6
2024-02-01	1477.4	1526.5	1245.5	1066.6

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	Gauteng Inter-Region at Emerald Resort 2025 (U14 Candidates)	2025-12-06	2025-12-07	Standard	Sedibeng (GSV)	5	5	4.5	Yes	Analysis
2	MCA Year End Rapid 2025 (U14)	2025-11-01	2025-11-01	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
3	Khelo India - Lonehill Chess Academy - 2nd Annual Chess Tournament 2025 (C)	2025-09-27	2025-09-27	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
4	Fourth Knight Riders Juniors Open Chess Tournament 2025 (B)	2025-08-31	2025-08-31	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
5	MCA Spring Flower Birthday Rapid 2025 (U14)	2025-09-20	2025-09-20	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	JMC Closed 2025 (U14)	2025-08-09	2025-08-10	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
7	JMC Helpmekaar 2025 (C)	2025-06-01	2025-06-01	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
8	Mzansi Africa Classic 2025 (Intermediate)	2025-05-17	2025-05-17	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	Moja Chess Extravaganza 2025 (C)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	9	3.5	Yes	Analysis
10	JMC Crawford Sandton 2025 (C)	2025-05-10	2025-05-10	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
11	2nd Knight Riders Junior Open 2025 (C)	2025-03-23	2025-03-23	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
12	MCA Summer March 2025 (Intermediate)	2025-03-08	2025-03-08	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
13	JMC Crawford Ruimsig 2025 (C)	2025-03-01	2025-03-01	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
14	JMC Rapid The Bridge School 2025 (Open)	2025-02-23	2025-02-23	Rapid	Johannesburg Metro (GJM)	7	7	3	Yes	Analysis
15	First Knights Juniors Chess Tournament 2025 (A+B)	2025-02-09	2025-02-09	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
16	JMC Kick Off 2025 (C)	2025-02-02	2025-02-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
17	Gauteng Inter-Region at UJ 2024 (U12 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
18	Mzansi Summer Rapid 2024 (B)	2024-10-26	2024-10-26	Rapid	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
19	Chess Power House Spring Rapid 2024	2024-09-01	2024-09-01	Rapid	Johannesburg Metro (GJM)	7	7	3	Yes	Analysis
20	JMC Closed 2024 (C)	2024-08-09	2024-08-11	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
21	Chess Power House July Open 2024 (C)	2024-07-20	2024-07-20	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
22	Second Knight Riders Juniors Open Chess Tournament 2024 (A+B)	2024-06-08	2024-06-08	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
23	JMC Trinityhouse Little Falls 2024 (B)	2024-06-02	2024-06-02	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
24	Chess Power House May Open 2024 (C)	2024-05-25	2024-05-25	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
25	JMC Crawford International Sandton 2024 (B)	2024-05-11	2024-05-11	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
26	1st Knights Open Tournament 2024 (B)	2024-03-23	2024-03-23	Standard	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis
27	JMC Unika School Tournament 2024 (D)	2024-03-02	2024-03-02	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
28	2024 Gauteng Inter-Region Chess Championship (U12B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	4	Yes	Analysis
29	JMC Kick Off Tournament 2024 (D)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
30	Mzansi Summer Blitz 2023	2023-12-09	2023-12-09	Rapid	Johannesburg Metro (GJM)	7	7	3	Yes	Analysis
31	Mzansi Bryanston Rapid 2023 (Junior)	2023-10-07	2023-10-07	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
32	ThinkChess Academy 2023 (B)	2023-09-09	2023-09-09	Standard	Johannesburg Metro (GJM)	5	5	4.5	Yes	Analysis
33	Mzansi Spring Rapid 2023	2023-09-02	2023-09-02	Rapid	Johannesburg Metro (GJM)	7	7	2	Yes	Analysis
34	Chess Molecules Rapid 2023 (Grade 3+4)	2023-09-23	2023-09-23	Rapid	Ekurhuleni (GE)	5	5	5	Yes	Analysis
35	JMC Closed Aug 2023 (U12)	2023-08-04	2023-08-06	Standard	Johannesburg Metro (GJM)	6	6	2.5	Yes	Analysis
36	2023 Menlo Open Tournament (D)	2023-07-22	2023-07-22	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
37	JMC Trinity Little Falls 2023 (D)	2023-07-02	2023-07-02	Standard	Johannesburg Metro (GJM)	5	4	3	Yes	Analysis
38	GoForChess Junior Chess Championship Grayston 2023 (Juniors)	2023-07-16	2023-07-16	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
39	Knight Riders Youth Day 2023 (U12)	2023-06-16	2023-06-16	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
40	JNW Open - Trinityhouse Little Falls 2023 (C)	2023-06-24	2023-06-24	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
41	JMC Blitz - Higher Ground 2023	2023-06-17	2023-06-17	Blitz	Johannesburg Metro (GJM)	7	7	3	Yes	Analysis
42	Mzansi Open Blitz 2023	2023-04-29	2023-04-29	Blitz	Johannesburg Metro (GJM)	9	8	0	Yes	Analysis
43	Thinkchess Tournament 2023 (Group 2)	2023-01-28	2023-01-28	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis

#	Games	Start				End
1	13	Tournament ThinkChess Academy 2023				Tournament Mzansi Bryanston Rapid 2023
		date 2023-09-09	rnd 1	type Standard	result 1	date 2023-10-07	rnd 3	type Rapid	result 1
		Opponent Du Plessis, J (Jaydan)				Opponent Upadhyay, S (Savya)
2	12	Tournament Mzansi Summer Blitz 2023				Tournament JMC Unika School Tournament 2024
		date 2023-12-09	rnd 7	type Rapid	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Mannar, A (Aaryan)				Opponent Van Wyk, F (Franco)
3	6	Tournament JMC Closed 2025				Tournament Fourth Knight Riders Juniors Open Chess Tournament 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-31	rnd 4	type Standard	result 0.5
		Opponent Joule, J (Jessica)				Opponent Nemusombori, L (Livhuwani Nathan)

#	Games	Start				End
1	16	Tournament ThinkChess Academy 2023				Tournament JMC Unika School Tournament 2024
		date 2023-09-09	rnd 1	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Du Plessis, J (Jaydan)				Opponent Van Wyk, F (Franco)
2	6	Tournament JMC Closed 2025				Tournament Fourth Knight Riders Juniors Open Chess Tournament 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-31	rnd 4	type Standard	result 0.5
		Opponent Joule, J (Jessica)				Opponent Nemusombori, L (Livhuwani Nathan)
3	5	Tournament Mzansi Africa Classic 2025				Tournament JMC Helpmekaar 2025
		date 2025-05-17	rnd 5	type Standard	result 1	date 2025-06-01	rnd 4	type Standard	result 0.5
		Opponent Gokool, N (Nishka)				Opponent Upadhyay, S (Savya)

#	Games	Start				End
1	8	Tournament Chess Molecules Rapid 2023				Tournament Mzansi Bryanston Rapid 2023
		date 2023-09-23	rnd 1	type Rapid	result 1	date 2023-10-07	rnd 3	type Rapid	result 1
		Opponent Phiri, B (Bokang)				Opponent Upadhyay, S (Savya)
2	3	Tournament JMC Rapid The Bridge School 2025				Tournament JMC Rapid The Bridge School 2025
		date 2025-02-23	rnd 2	type Rapid	result 1	date 2025-02-23	rnd 4	type Rapid	result 1
		Opponent Kolbe, J (Jayton)				Opponent Bazhko, A (Anton)
3	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 Naidoo, M (Mariska)				Opponent Yan, H (Huaifei)

#	Games	Start				End
1	2	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 4	type Blitz	result 1	date 2023-06-17	rnd 5	type Blitz	result 1
		Opponent Gerber, Z (Zoe)				Opponent Maharaj, A (Anaamika)
2	1	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 2	type Blitz	result 1	date 2023-06-17	rnd 2	type Blitz	result 1
		Opponent Mohonwe, LK (Lebone Kgosi)				Opponent Mohonwe, LK (Lebone Kgosi)

#	Games	Start				End
1	8	Tournament Chess Molecules Rapid 2023				Tournament Mzansi Bryanston Rapid 2023
		date 2023-09-23	rnd 1	type Rapid	result 1	date 2023-10-07	rnd 3	type Rapid	result 1
		Opponent Phiri, B (Bokang)				Opponent Upadhyay, S (Savya)
2	7	Tournament Mzansi Summer Blitz 2023				Tournament JMC Kick Off Tournament 2024
		date 2023-12-09	rnd 7	type Rapid	result 1	date 2024-01-28	rnd 2	type Standard	result 1
		Opponent Mannar, A (Aaryan)				Opponent Prinsloo, N (Nicholas)
3	5	Tournament JMC Closed 2025				Tournament Fourth Knight Riders Juniors Open Chess Tournament 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-31	rnd 3	type Standard	result 1
		Opponent Joule, J (Jessica)				Opponent Vorster, W (Wian)

#	Games	Start				End
1	6	Tournament 2024 Gauteng Inter-Region Chess Championship				Tournament JMC Kick Off Tournament 2024
		date 2024-01-13	rnd 1	type Standard	result 1	date 2024-01-28	rnd 2	type Standard	result 1
		Opponent Sampson, C (Cadon)				Opponent Prinsloo, N (Nicholas)
2	5	Tournament JMC Closed 2025				Tournament Fourth Knight Riders Juniors Open Chess Tournament 2025
		date 2025-08-10	rnd 4	type Standard	result 1	date 2025-08-31	rnd 3	type Standard	result 1
		Opponent Joule, J (Jessica)				Opponent Vorster, W (Wian)
3	4	Tournament JMC Kick Off Tournament 2024				Tournament JMC Unika School Tournament 2024
		date 2024-01-28	rnd 4	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent Wang, H (Henry)				Opponent Van Wyk, F (Franco)

#	Games	Start				End
1	8	Tournament Chess Molecules Rapid 2023				Tournament Mzansi Bryanston Rapid 2023
		date 2023-09-23	rnd 1	type Rapid	result 1	date 2023-10-07	rnd 3	type Rapid	result 1
		Opponent Phiri, B (Bokang)				Opponent Upadhyay, S (Savya)
2	3	Tournament JMC Rapid The Bridge School 2025				Tournament JMC Rapid The Bridge School 2025
		date 2025-02-23	rnd 2	type Rapid	result 1	date 2025-02-23	rnd 4	type Rapid	result 1
		Opponent Kolbe, J (Jayton)				Opponent Bazhko, A (Anton)
3	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 Naidoo, M (Mariska)				Opponent Yan, H (Huaifei)

#	Games	Start				End
1	2	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 4	type Blitz	result 1	date 2023-06-17	rnd 5	type Blitz	result 1
		Opponent Gerber, Z (Zoe)				Opponent Maharaj, A (Anaamika)
2	1	Tournament JMC Blitz - Higher Ground 2023				Tournament JMC Blitz - Higher Ground 2023
		date 2023-06-17	rnd 2	type Blitz	result 1	date 2023-06-17	rnd 2	type Blitz	result 1
		Opponent Mohonwe, LK (Lebone Kgosi)				Opponent Mohonwe, LK (Lebone Kgosi)

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	Zulu ,T (Thandoluhle)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
1	Zulu ,T (Thandoluhle)	4	1459.1	1352.9	4	1453.5	1352.9	0	0	0	0	0	0
2	Mankena ,S (Satvik Ram)	4	2	0	3	2	141.7	1	0	-425	0	0	0
2	Mankena ,S (Satvik Ram)	4	1492.9	1492.9	3	1464.4	1634.6	1	1336.1	1067.9	0	0	0
3	Upadhyay ,S (Savya)	4	2.5	106.2	2	1.5	212.5	2	1	0	0	0	0
3	Upadhyay ,S (Savya)	4	1352.3	1458.6	2	1331.4	1564.8	2	1262.7	1352.3	0	0	0
4	D`Alton ,E (Ezra)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	D`Alton ,E (Ezra)	3	1395.7	1112.4	3	1367.3	1112.4	0	0	0	0	0	0
5	Bender ,J (Jandre)	3	0	-425	3	0	-425	0	0	0	0	0	0
5	Bender ,J (Jandre)	3	1511.8	1086.8	3	1524.9	1086.8	0	0	0	0	0	0
6	Chadalavada ,B (Bhaarghavarama)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
6	Chadalavada ,B (Bhaarghavarama)	3	1278.9	1137.3	3	1282.5	1137.3	0	0	0	0	0	0
7	Smith ,C (Caleb)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
7	Smith ,C (Caleb)	3	1293.7	1010.4	3	1313.5	1010.4	0	0	0	0	0	0
8	Moosa ,I (Ikram)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Moosa ,I (Ikram)	2	1218.1	793.1	2	1204.8	793.1	0	0	0	0	0	0
9	Yimani ,K (Kshitij)	2	2	425	2	2	425	0	0	0	0	0	0
9	Yimani ,K (Kshitij)	2	1345.7	1770.7	2	1347.4	1770.7	0	0	0	0	0	0
10	Motsamai ,OB (Ontlametse Bokamoso)	2	1	0	2	1	0	0	0	0	0	0	0
10	Motsamai ,OB (Ontlametse Bokamoso)	2	1394.3	1394.3	2	1389.4	1394.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Westoby, A (Adam)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms