Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, J (Javier)

Chess SA id

102050919

FIDE id

Date of birth

2002-01-18 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1432.4	1424.7	820.6	979
Raw rating	1432.4	1424.7	820.6	979
Weighted rating	1432.2	1424.5	820.6	979
Weighted performance	383.6	382.9	0	0
Floor	955.3	956.4	500	500
K-factor	32	32	40	40
Min/Max rating change allowed	119.1	120.4	284.7	227.2
Highest rating	1471 2019-10-01	1472.1 2019-10-01	1200 2024-02-01	1298.8 2020-01-01
Highest raw rating	1455.3 2019-12-01	1456.4 2019-12-01	820.6 2024-02-01	979 2024-02-01
Highest weighted rating	1431.6 2025-08-01	1424 2025-08-01	820.6 2024-11-01	979 2024-11-01
Highest weighted performance	1471 2019-10-01	1472.1 2019-10-01	1200 2024-02-01	1298.8 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1432.4	1424.7	820.6	979
Analysis
Rating	1432.4	1424.7	820.6	979
Raw rating	1432.4	1424.7	820.6	979
Weighted rating	1432.2	1424.5	820.6
Weighted performance	383.6	382.9	0
K-factor	32	32	40	40
Floor	955.3	956.4	500	500
Max/Min rating change allowed	119.1	120.4	284.7	227.2
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	1432.4	1424.7	820.6	979
New weighted rating	1432.3	1424.6	820.6	979
New weighted performance	383.2	382.4	0	0
Temp new rating	1432.4	1424.7	820.6	979
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1432.4	1424.7	820.6	979
New K-factor	32	32	40	40
New floor	955.3	956.4	500	500

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	205	194	11

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	148	82.5	55.74	48.8	1240	1288.8
Standard	137	77	56.2	52.7	1226.1	1278.8
Rapid	0	0	0	0	0	0
Blitz	11	5.5	50	0	1413.4	1413.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1432.4	1424.7	820.6	979
2025-09-01	1432.4	1424.7	820.6	979
2025-08-01	1432.4	1424.7	820.6	979
2025-07-01	1432.4	1424.7	820.6	979
2025-06-01	1432.4	1424.7	820.6	979
2025-05-01	1432.4	1424.7	820.6	979
2025-04-01	1432.4	1424.7	820.6	979
2025-03-01	1432.4	1424.7	820.6	979
2025-02-01	1432.4	1424.7	820.6	979
2025-01-01	1432.4	1424.7	820.6	979
2024-12-01	1432.4	1424.7	820.6	979
2024-11-01	1432.4	1424.7	820.6	979
2024-10-01	1432.4	1424.7	820.6	979
2024-09-01	1432.4	1424.7	820.6	979
2024-08-01	1432.4	1424.7	820.6	979
2024-07-01	1432.4	1424.7	820.6	979
2024-06-01	1432.4	1424.7	820.6	979
2024-08-01	1432.4	1424.7	820.6	979
2024-04-01	1432.4	1424.7	820.6	979
2024-03-01	1432.4	1424.7	820.6	979
2024-02-01	1432.4	1424.7	820.6	979
2024-01-01	1432.4	1424.7	820.6	979
2023-12-01	1408.8	1404.2	820.6	979
2023-11-01	1408.8	1404.2	820.6	979

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	Grey College Team Championship 2020 (A)	2020-01-31	2020-02-01	Standard	Mangaung (FMB)	5	5	2.5	Yes	Analysis
2	2019 South African Juior Blitz Championship (A)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	4	1.5	Yes	Analysis
3	2019 Wild Card Chess Championship (U18 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
4	2019 South African Junior Team Championships (U18A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
5	GJM vs GE Inter Region 2019 (U18A)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
6	The King`s Cup League 2019 (A)	2019-10-19	2019-10-19	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
7	2019 Gauteng School League Finals (U17 Open)	2019-08-24	2019-08-24	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
8	JNW Club - Maragon Open 2019 (B)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	JHB Metro Closed 2019 (Open)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
10	JNW Club - Hoerskool Linden 2019 (B)	2019-06-15	2019-06-15	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
11	2019 Capablanca Chess Festival (Swiss B)	2019-04-19	2019-04-21	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
12	JNW Club - Charterhouse Open 2019 (B)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
13	JNW Club - Trinityhouse Randpark Ridge Open 2019 (B)	2019-03-09	2019-03-09	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
14	Grey College Team Championship 2019 (A)	2019-02-22	2019-02-23	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
15	JNW Club - Bryanston Open 1 2019 (B)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
16	South African Junior Blitz 2018 (U18)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
17	South African Junior Team Championships 2018 (U18B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
18	JNW Club - Helpmekaar Open 2018 (B)	2018-09-15	2018-09-15	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
19	2018 Gauteng League Final (U17)	2018-08-25	2018-08-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
20	JNW Club - Muldersdrif Open 2018 (B)	2018-08-18	2018-08-18	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
21	JNW Club - Maragon Open 2018 (B)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
22	JHB Metro Junior Closed 2018 (Open)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
23	JNW Club - Bryanston Open 2 2018 (C)	2018-05-05	2018-05-05	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
24	D10 Schools Individuals 2018 (U18 Boys)	2018-05-18	2018-05-18	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
25	JNW Club - Trinityhouse Little Falls Open 2018 (C)	2018-02-16	2018-02-17	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
26	Grey College Inter Team Chess Tournament 2018 (A)	2018-02-23	2018-02-24	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
27	South African Junior Team Championships 2017 (U16D)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis

#	Games	Start				End
1	12	Tournament South African Junior Blitz 2018				Tournament Grey College Team Championship 2019
		date 2018-12-19	rnd 4	type Blitz	result 0.5	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Naidoo, R (Rayna)				Opponent Feris, J (Justin)
2	7	Tournament JHB Metro Junior Closed 2018				Tournament JNW Club - Maragon Open 2018
		date 2018-07-29	rnd 4	type Standard	result 1	date 2018-08-04	rnd 4	type Standard	result 1
		Opponent Rossouw, AW (Andreas)				Opponent Badenhorst, C (Chloe)
3	6	Tournament 2019 Wild Card Chess Championship				Tournament Grey College Team Championship 2020
		date 2020-01-10	rnd 3	type Standard	result 1	date 2020-01-31	rnd 1	type Standard	result 1
		Opponent Joubert, GCD (Coenraad)				Opponent Van Rooy, HF (Herculaas)

#	Games	Start				End
1	8	Tournament South African Junior Team Championships 2018				Tournament Grey College Team Championship 2019
		date 2018-12-20	rnd 7	type Standard	result 1	date 2019-02-22	rnd 2	type Standard	result 1
		Opponent Saayman, A (Anais)				Opponent Feris, J (Justin)
2	7	Tournament JHB Metro Junior Closed 2018				Tournament JNW Club - Maragon Open 2018
		date 2018-07-29	rnd 4	type Standard	result 1	date 2018-08-04	rnd 4	type Standard	result 1
		Opponent Rossouw, AW (Andreas)				Opponent Badenhorst, C (Chloe)
3	6	Tournament 2019 Wild Card Chess Championship				Tournament Grey College Team Championship 2020
		date 2020-01-10	rnd 3	type Standard	result 1	date 2020-01-31	rnd 1	type Standard	result 1
		Opponent Joubert, GCD (Coenraad)				Opponent Van Rooy, HF (Herculaas)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 0.5	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Naidoo, R (Rayna)				Opponent Van Wyk-Grove, A (Alexander)
2	2	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 2	type Blitz	result 0.5	date 2020-01-05	rnd 3	type Blitz	result 1
		Opponent Bezuidenhout, LP (Lian)				Opponent Serfontein, C (Christiaan Jacobus)
3	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 0.5
		Opponent Rode, CM (Christoph)				Opponent Buchner, E (Eduard)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Thompson, T (Themba)				Opponent Cungcu, O (Olunje)
2	3	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 2	type Standard	result 1	date 2018-08-25	rnd 4	type Standard	result 1
		Opponent Zwane, N (Nhlakanipho)				Opponent Madhingadi, T (Thapelo)
3	3	Tournament D10 Schools Individuals 2018				Tournament D10 Schools Individuals 2018
		date 2018-05-18	rnd 2	type Standard	result 1	date 2018-05-18	rnd 4	type Standard	result 1
		Opponent Zwane, W (Wayne)				Opponent Nkumane, S (Simphiwe)

#	Games	Start				End
1	3	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-05	rnd 3	type Standard	result 1	date 2020-01-07	rnd 5	type Standard	result 1
		Opponent Le Roux, G (Gerrit)				Opponent Steenkamp, F (Fransien)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Thompson, T (Themba)				Opponent Cungcu, O (Olunje)
3	3	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 2	type Standard	result 1	date 2018-08-25	rnd 4	type Standard	result 1
		Opponent Zwane, N (Nhlakanipho)				Opponent Madhingadi, T (Thapelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 3	type Blitz	result 1	date 2020-01-05	rnd 3	type Blitz	result 1
		Opponent Serfontein, C (Christiaan Jacobus)				Opponent Serfontein, C (Christiaan Jacobus)
2	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 7	type Blitz	result 1	date 2018-12-19	rnd 7	type Blitz	result 1
		Opponent Van Wyk-Grove, A (Alexander)				Opponent Van Wyk-Grove, A (Alexander)
3	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 1	date 2018-12-19	rnd 1	type Blitz	result 1
		Opponent Rode, CM (Christoph)				Opponent Rode, CM (Christoph)

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	Lutz ,J (Joseph)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
1	Lutz ,J (Joseph)	3	1328.5	1045.2	3	1338.5	1045.2	0	0	0	0	0	0
2	Felix ,R (Raphael)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
2	Felix ,R (Raphael)	3	1245.7	1387.4	3	1254.5	1387.4	0	0	0	0	0	0
3	Stapelberg ,L (Luke)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
3	Stapelberg ,L (Luke)	2	854.4	1066.9	2	859.8	1066.9	0	0	0	0	0	0
4	Schultz ,A (Anton)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Schultz ,A (Anton)	2	863.5	1076	2	867	1076	0	0	0	0	0	0
5	Chhiba ,N (Nikhil)	2	2	425	2	2	425	0	0	0	0	0	0
5	Chhiba ,N (Nikhil)	2	1220.7	1645.7	2	1219.8	1645.7	0	0	0	0	0	0
6	Van Stryp ,O (Ockert)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
6	Van Stryp ,O (Ockert)	2	1102.2	1314.7	2	1095.8	1314.7	0	0	0	0	0	0
7	Dube ,B (Brandon)	2	2	425	2	2	425	0	0	0	0	0	0
7	Dube ,B (Brandon)	2	1017.2	1442.2	2	998.2	1442.2	0	0	0	0	0	0
8	Coertzen ,D (Dylan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Coertzen ,D (Dylan)	2	1114.7	902.2	2	1116.8	902.2	0	0	0	0	0	0
9	Donald ,R (Ryan)	2	2	425	2	2	425	0	0	0	0	0	0
9	Donald ,R (Ryan)	2	1216.2	1641.2	2	1218.8	1641.2	0	0	0	0	0	0
10	Smith ,R (Reuben)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Smith ,R (Reuben)	2	1270.8	1483.3	2	1269.2	1483.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Van Der Westhuizen, J (Javier)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms