Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, D (Donald)

Chess SA id

101039600

FIDE id

Date of birth

2001-05-01 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1598.1	1588.7	1636.3	1543.5
Raw rating	1598.1	1588.7	1636.3	1543.5
Weighted rating	1593.1	1583.7	1636.3	1543.3
Weighted performance	981.6	964.2	0	0
Floor	1190.7	1195.1	1136.3	1136.3
K-factor	28	28	28	28
Min/Max rating change allowed	94	95.3	89.1	101.6
Highest rating	1698.3 2019-04-01	1703.3 2019-04-01	1636.3 2019-08-01	1636.3 2018-01-01
Highest raw rating	1690.7 2019-05-01	1695.1 2019-05-01	1636.3 2024-03-01	1636.3 2018-01-01
Highest weighted rating	1690.7 2020-08-01	1695.1 2020-07-01	1636.3 2019-08-01	1636.3 2018-01-01
Highest weighted performance	1698.3 2019-04-01	1703.3 2019-04-01	1200 2024-03-01	1395.9 2018-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1598.1	1588.7	1636.3	1543.5
Analysis
Rating	1598.1	1588.7	1636.3	1543.5
Raw rating	1598.1	1588.7	1636.3	1543.5
Weighted rating	1593.1	1583.7	1636.3
Weighted performance	981.6	964.2	0
K-factor	28	28	28	28
Floor	1190.7	1195.1	1136.3	1136.3
Max/Min rating change allowed	94	95.3	89.1	101.6
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	1598.1	1588.7	1636.3	1543.5
New weighted rating	1593.9	1584.6	1636.3	1543.4
New weighted performance	981.1	963.7	0	0
Temp new rating	1598.1	1588.7	1636.3	1543.5
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1598.1	1588.7	1636.3	1543.5
New K-factor	28	28	28	28
New floor	1190.7	1195.1	1136.3	1136.3

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	2	2	0
	20	20	0
	14	14	0
	0	0	0
History	1030	1002	28

Games since
	Main 11	Standard 11		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
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	177	109	61.58	98.4	1472.9	1571.4
Standard	156	99	63.46	114.4	1460.2	1574.6
Rapid	0	0	0	0	0	0
Blitz	21	10	47.62	-20.2	1567.3	1547.1

Date	Main	Standard	Rapid	Blitz
2025-09-30	1598.1	1588.7	1636.3	1543.5
2025-09-01	1598.1	1588.7	1636.3	1543.5
2025-08-01	1598.1	1588.7	1636.3	1543.5
2025-07-01	1598.1	1588.7	1636.3	1543.5
2025-06-01	1598.1	1588.7	1636.3	1543.5
2025-05-01	1598.1	1588.7	1636.3	1543.5
2025-04-01	1598.1	1588.7	1636.3	1543.5
2025-03-01	1598.1	1588.7	1636.3	1543.5
2025-02-01	1598.1	1588.7	1636.3	1543.5
2025-01-01	1598.1	1588.7	1636.3	1543.5
2024-12-01	1598.1	1588.7	1636.3	1543.5
2024-11-01	1598.1	1588.7	1636.3	1543.5
2024-10-01	1598.1	1588.7	1636.3	1543.5
2024-09-01	1575.4	1566.3	1636.3	1543.5
2024-08-01	1575.4	1566.3	1636.3	1543.5
2024-07-01	1575.4	1566.3	1636.3	1543.5
2024-06-01	1575.4	1566.3	1636.3	1543.5
2024-08-01	1575.4	1566.3	1636.3	1543.5
2024-04-01	1575.4	1566.3	1636.3	1543.5
2024-03-01	1575.4	1566.3	1636.3	1543.5
2024-02-01	1575.4	1566.3	1636.3	1543.5
2024-01-01	1575.4	1566.3	1636.3	1543.5
2023-12-01	1575.4	1554.9	1636.3	1527.8
2023-11-01	1586	1582.3	1636.3	1527.8

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	CT League 2024 (B)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	2	1.5	Yes	Analysis
2	2023 USSA Championships (Open)	2023-12-04	2023-12-08	Standard	Ethekwini (KED)	9	9	5.5	Yes	Analysis
3	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	2	1	Yes	Analysis
4	WP Club League 2023 (B)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	3	1.5	Yes	Analysis
5	Cape of Good Hope Open 2023 (Championship)	2023-01-28	2023-01-29	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
6	Ussa Chess Championships 2022 (Open)	2022-12-05	2022-12-09	Standard	Frances Baard (NCF)	9	9	6	Yes	Analysis
7	2022 Western Province Club League (C)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	5	2.5	Yes	Analysis
8	2019 Inter Region Chess Championships	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	6	3	Yes	Analysis
9	2019 South African Juior Blitz Championship (A)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	7	3	Yes	Analysis
10	2019 South African Junior Team Championships (U20A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	5	Yes	Analysis
11	2019 Gauteng School League Finals (U19 Open)	2019-08-24	2019-08-24	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
12	2019 D4 Tshwane South Schools League Team Finals (U19)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
13	2019 Gauteng Secondary Schools Individual Chess Championships (U18 Boys)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
14	2019 Capablanca Chess Festival (RR C)	2019-04-18	2019-04-22	Standard	Tshwane (GTP)	9	9	5.5	Yes	Analysis
15	2019 D4 Individual Finals (U18 Mixed)	2019-03-09	2019-03-09	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
16	2019 South African Junior Closed Chess Championship (U18 Open)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	4.5	Yes	Analysis
17	2019 TuksChess Open (A)	2019-02-23	2019-02-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
18	Boksburg Open 2019 (A)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	3.5	Yes	Analysis
19	South African Junior Blitz 2018 (U18)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
20	South African Junior Team Championships 2018 (U18A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis
21	2018 Gauteng League Final (U19)	2018-08-25	2018-08-25	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
22	2018 D4 Tshwane South Schools League Finals (U19)	2018-08-04	2018-08-04	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
23	2018 Swartkop Open (A)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
24	2018 Gauteng Secondary Schools Individual Chess Championships (U18 Boys)	2018-05-26	2018-05-26	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
25	2018 Capablanca Swiss (A)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	6	3	Yes	Analysis
26	2018 South African Junior Closed Chess Championships (U18 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	10	3	Yes	Analysis
27	2018 D4 Tshwane North Individual Chess Championships (U19 Boys)	2018-03-10	2018-03-10	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
28	2018 Tshwane Registration Open Chess Tournament (A)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
29	South African Junior Blitz 2017 Championships (A)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	7	3	Yes	Analysis
30	South African Junior Team Championships 2017 (U18A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis

#	Games	Start				End
1	19	Tournament 2018 Swartkop Open				Tournament South African Junior Blitz 2018
		date 2018-06-23	rnd 5	type Standard	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Naidoo, T (Tashil)				Opponent Millard, C (Chad)
2	8	Tournament 2019 TuksChess Open				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-02-23	rnd 4	type Standard	result 1	date 2019-03-17	rnd 1	type Standard	result 1
		Opponent Nxumalo, B (Banele)				Opponent Fibiger, JN (Jethro)
3	8	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-04-01	rnd 1	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Zondo, LC (Linda)

#	Games	Start				End
1	17	Tournament 2018 Swartkop Open				Tournament South African Junior Team Championships 2018
		date 2018-06-23	rnd 5	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Bingani, R (Richard)
2	8	Tournament 2019 TuksChess Open				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-02-23	rnd 4	type Standard	result 1	date 2019-03-17	rnd 1	type Standard	result 1
		Opponent Nxumalo, B (Banele)				Opponent Fibiger, JN (Jethro)
3	8	Tournament 2018 Tshwane Registration Open Chess Tournament				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-01-27	rnd 4	type Standard	result 1	date 2018-04-01	rnd 1	type Standard	result 1
		Opponent Naidoo, T (Tashil)				Opponent Zondo, LC (Linda)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2018
		date 2018-01-07	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Greyling, CF (Carel)				Opponent Millard, C (Chad)
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 1	date 2020-01-05	rnd 3	type Blitz	result 1
		Opponent Campbell, G (Grant)				Opponent Smit, YH (Yoshua)
3	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2018-12-19	rnd 5	type Blitz	result 1
		Opponent Swart, S (Sune)				Opponent Bolani, S (Sakhile)

#	Games	Start				End
1	7	Tournament South African Junior Team Championships 2018				Tournament South African Junior Blitz 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Odendaal, JPL (Johan)				Opponent Millard, C (Chad)
2	5	Tournament 2019 TuksChess Open				Tournament 2019 D4 Individual Finals
		date 2019-02-23	rnd 4	type Standard	result 1	date 2019-03-09	rnd 3	type Standard	result 1
		Opponent Nxumalo, B (Banele)				Opponent Reyneke, PJ (Pieter)
3	5	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 1	type Standard	result 1	date 2018-08-25	rnd 5	type Standard	result 1
		Opponent Evaristo, M (Marcio)				Opponent Zikhali, P (Perfect)

#	Games	Start				End
1	5	Tournament 2019 TuksChess Open				Tournament 2019 D4 Individual Finals
		date 2019-02-23	rnd 4	type Standard	result 1	date 2019-03-09	rnd 3	type Standard	result 1
		Opponent Nxumalo, B (Banele)				Opponent Reyneke, PJ (Pieter)
2	5	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Odendaal, JPL (Johan)				Opponent Bingani, R (Richard)
3	5	Tournament 2018 Gauteng League Final				Tournament 2018 Gauteng League Final
		date 2018-08-25	rnd 1	type Standard	result 1	date 2018-08-25	rnd 5	type Standard	result 1
		Opponent Evaristo, M (Marcio)				Opponent Zikhali, P (Perfect)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2018
		date 2018-01-07	rnd 6	type Blitz	result 1	date 2018-12-19	rnd 2	type Blitz	result 1
		Opponent Greyling, CF (Carel)				Opponent Millard, C (Chad)
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 1	date 2020-01-05	rnd 3	type Blitz	result 1
		Opponent Campbell, G (Grant)				Opponent Smit, YH (Yoshua)
3	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 4	type Blitz	result 1	date 2018-12-19	rnd 5	type Blitz	result 1
		Opponent Swart, S (Sune)				Opponent Bolani, S (Sakhile)

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	Prinsloo ,MP (Marthinus Phillipus)	4	2.5	106.2	4	2.5	106.2	0	0	0	0	0	0
1	Prinsloo ,MP (Marthinus Phillipus)	4	1597.7	1704	4	1600.3	1704	0	0	0	0	0	0
2	Mazibuko ,K (Khanya)	4	0	-425	3	0	-425	0	0	0	1	0	-425
2	Mazibuko ,K (Khanya)	4	1935.5	1510.5	3	1930.7	1510.5	0	0	0	1	1888.8	1510.5
3	Govender ,Y (Yaduvir)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Govender ,Y (Yaduvir)	3	1683.2	1541.5	3	1698.5	1541.5	0	0	0	0	0	0
4	Subbiah ,KJ (Keshiv)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
4	Subbiah ,KJ (Keshiv)	3	946.3	1229.6	3	953.5	1229.6	0	0	0	0	0	0
5	Khumalo ,KB (Keith Babongile)	3	0	-425	2	0	-425	0	0	0	1	0	-425
5	Khumalo ,KB (Keith Babongile)	3	2006	1581	2	2001.8	1581	0	0	0	1	2071.8	1581
6	Tseka ,J (Junior)	2	1	0	2	1	0	0	0	0	0	0	0
6	Tseka ,J (Junior)	2	1417.4	1417.4	2	1416.3	1417.4	0	0	0	0	0	0
7	Rogge ,CG (Conrad Gustav)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
7	Rogge ,CG (Conrad Gustav)	2	1608	1395.5	2	1611.8	1395.5	0	0	0	0	0	0
8	Marais ,N (Nina)	2	1	0	2	1	0	0	0	0	0	0	0
8	Marais ,N (Nina)	2	1714.4	1714.4	2	1710.1	1714.4	0	0	0	0	0	0
9	Bucceri ,DR (Draven Ricardo)	2	1	0	2	1	0	0	0	0	0	0	0
9	Bucceri ,DR (Draven Ricardo)	2	1637.2	1637.2	2	1634.1	1637.2	0	0	0	0	0	0
10	Bull ,D (Dearan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Bull ,D (Dearan)	2	1230.6	1443.1	2	1215.8	1443.1	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, D (Donald)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms