Chess South Africa Ratings Database

PLAYER PAGE

Personal

Oosthuizen, W (Wesley)

Chess SA id

1800140067

FIDE id

Date of birth

1980-02-15 (Adult)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-07-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1333.7	1257.3	1350.7	1163.1
Raw rating	1333.7	1257.3	1350.7	1163.1
Weighted rating	1288.7	1252.7	1300.3	1163.1
Weighted performance	1225	903.4	0	0
Floor	843	833.6	850.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	137	152.8	133.8	174.8
Highest rating	1494.2 2022-04-01	1466.6 2022-04-01	1350.7 2025-08-01	1200 2018-10-01
Highest raw rating	1343 2023-09-01	1333.6 2023-09-01	1350.7 2025-08-01	1200 2020-01-01
Highest weighted rating	1343 2024-03-01	1333.6 2024-03-01	1289 2025-08-01	1200 2018-10-01
Highest weighted performance	1494.2 2022-04-01	1466.6 2022-04-01	1217.8 2024-07-01	1200 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	-0
New rating	1333.7	1257.3	1350.7	1163.1
Analysis
Rating	1333.7	1257.3	1350.7	1163.1
Raw rating	1333.7	1257.3	1350.7	1163.1
Weighted rating	1288.7	1252.7	1300.3
Weighted performance	1225	903.4	0
K-factor	36	36	36	36
Floor	843	833.6	850.7	700
Max/Min rating change allowed	137	152.8	133.8	174.8
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	1333.7	1257.3	1350.7	1163.1
New weighted rating	1292.6	1252.7	1305.2	1163.1
New weighted performance	1224.5	903	0	0
Temp new rating	1333.7	1257.3	1350.7	1163.1
Temp new rating +/-	0	0	0	-0
Final new rating +/-	0	0	0	-0
New rating	1333.7	1257.3	1350.7	1163.1
New K-factor	36	36	36	36
New floor	843	833.6	850.7	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	20	0	13	7
	11	5	6	0
	30	23	0	7
	19	19	0	0
	0	0	0	0
History	80	47	19	14

Games since
	Main 31	Standard 5		Rapid 19		Blitz 7
Gender	Male
Age group	Adult
Region	West Coast (WCU)
Province	Western Cape (WC)
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	20	9.5	47.5	-21.2	1443.1	1421.8
Standard	0	0	0	0	0	0
Rapid	13	7.5	57.69	65.4	1414.8	1480.1
Blitz	7	2	28.57	-182.1	1495.7	1313.6
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	80	38	47.5	-21.2	1357.6	1336.4
Standard	47	24	51.06	9	1316.8	1325.8
Rapid	19	10	52.63	22.4	1387.7	1410
Blitz	14	4	28.57	-182.1	1453.8	1271.7

Date	Main	Standard	Rapid	Blitz
2025-09-30	1333.7	1257.3	1350.7	1163.1
2025-09-01	1333.7	1257.3	1350.7	1163.1
2025-08-01	1333.7	1257.3	1350.7	1163.1
2025-07-01	1293.5	1257.3	1290.7	1163.1
2025-06-01	1293.5	1257.3	1290.7	1163
2025-05-01	1293.5	1257.3	1290.7	1162.9
2025-04-01	1293.5	1257.3	1290.7	1160.7
2025-03-01	1273.5	1257.3	1278	1163.4
2025-02-01	1273.2	1257.1	1278	1163.4
2025-01-01	1257.7	1238.5	1278	1163.4
2024-12-01	1257.7	1238.5	1278	1163.4
2024-11-01	1257.7	1238.5	1278	1163.4
2024-10-01	1257.7	1238.5	1278	1163.4
2024-09-01	1257.7	1238.5	1278	1163.4
2024-08-01	1257.7	1238.5	1278	1163.4
2024-07-01	1257.7	1238.5	1300	1163.4
2024-06-01	1257.7	1238.5	1300	1163.4
2024-08-01	1257.7	1238.5	1300	1163.4
2024-04-01	1257.7	1238.5	1300	1163.4
2024-03-01	1308.1	1297.2	1300	1163.4
2024-02-01	1308.1	1297.2	1300	1163.4
2024-01-01	1308.1	1297.2	1300	1163.4
2023-12-01	1308.1	1297.2	1200	1162.4
2023-11-01	1308.1	1297.2	1200	1162.4

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	Cape Winelands Open 2025 (Parents+Teachers)	2025-07-19	2025-07-19	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
2	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	2.5	Yes	Analysis
3	Steinitz Festival 2025 (Blitz)	2025-03-14	2025-03-14	Blitz	Cape Town (WCT)	7	7	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Winelands Open 2025 (Parents+Teachers)	2025-07-19	2025-07-19	Rapid	Cape Winelands (WCW)	6	6	5	Yes	Analysis
2	Steinitz Festival 2025 (Open)	2025-03-15	2025-03-15	Rapid	Cape Town (WCT)	7	7	2.5	Yes	Analysis
3	Steinitz Festival 2025 (Blitz)	2025-03-14	2025-03-14	Blitz	Cape Town (WCT)	7	7	2	Yes	Analysis
4	Curro Durbanville Chess Rapid Open 2024 (Intermediate)	2024-07-13	2024-07-13	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
5	Cape Town Open Chess Championship 2024 (Intermediate)	2024-03-16	2024-03-17	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
6	Western Cape Closed Championship 2023 (D)	2023-09-24	2023-09-25	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
7	CW Top Schools 2023 (Advanced)	2023-08-11	2023-08-13	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
8	Cape Winelands Open 2023 (Intermediate)	2023-07-22	2023-07-23	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
9	Steinitz Open 2023 (A+B)	2023-05-26	2023-05-28	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
10	Chess WP Individual Blitz 2023 (Open)	2023-01-03	2023-01-03	Blitz	Cape Town (WCT)	7	7	2	Yes	Analysis
11	George Open 2022 (B)	2022-12-03	2022-12-03	Standard	Eden (WEG)	5	5	3	Yes	Analysis
12	Drakenstein Pioneers Club Championship 2022 (Open)	2022-09-20	2022-10-11	Standard	Cape Winelands (WCW)	5	3	2	Yes	Analysis
13	Western Cape Woman`s Championship 2022 (Open)	2022-09-02	2022-09-04	Standard	West Coast (WCU)	5	5	3	Yes	Analysis
14	Ceres Open 2022 (B)	2022-04-23	2022-04-23	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Lee, T (Tai-Chi)				Opponent Nel, F (Fanie)
2	4	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 2	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Coetzee, C (Conlinn)				Opponent Strauss, B (Branden)
3	4	Tournament Ceres Open 2022				Tournament Western Cape Woman`s Championship 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-09-02	rnd 1	type Standard	result 1
		Opponent Xetu, A (Abulele)				Opponent Williams, S (Sergio)

#	Games	Start				End
1	4	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 2	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Coetzee, C (Conlinn)				Opponent Strauss, B (Branden)
2	4	Tournament Ceres Open 2022				Tournament Western Cape Woman`s Championship 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-09-02	rnd 1	type Standard	result 1
		Opponent Xetu, A (Abulele)				Opponent Williams, S (Sergio)
3	3	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-08-13	rnd 6	type Standard	result 1
		Opponent Conradie, M (Magda)				Opponent Visagie, C (Christopher)

#	Games	Start				End
1	6	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Lee, T (Tai-Chi)				Opponent Nel, F (Fanie)
2	2	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 1	type Rapid	result 0.5	date 2025-03-15	rnd 2	type Rapid	result 1
		Opponent Stevens, DA (Danielle-Ann)				Opponent Jacobs, S (Shameeg)
3	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-15	rnd 4	type Rapid	result 1	date 2025-03-15	rnd 4	type Rapid	result 1
		Opponent Mansfield-Scaddan, S (Sefton)				Opponent Mansfield-Scaddan, S (Sefton)

#	Games	Start				End
1	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-14	rnd 6	type Blitz	result 1	date 2025-03-14	rnd 6	type Blitz	result 1
		Opponent Stevens, DA (Danielle-Ann)				Opponent Stevens, DA (Danielle-Ann)
2	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-14	rnd 3	type Blitz	result 1	date 2025-03-14	rnd 3	type Blitz	result 1
		Opponent Blignaut, N (Naude)				Opponent Blignaut, N (Naude)
3	1	Tournament Chess WP Individual Blitz 2023				Tournament Chess WP Individual Blitz 2023
		date 2023-01-03	rnd 7	type Blitz	result 1	date 2023-01-03	rnd 7	type Blitz	result 1
		Opponent Walters, N (Nicola)				Opponent Walters, N (Nicola)

#	Games	Start				End
1	4	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 2	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Coetzee, C (Conlinn)				Opponent Strauss, B (Branden)
2	4	Tournament Ceres Open 2022				Tournament Western Cape Woman`s Championship 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-09-02	rnd 1	type Standard	result 1
		Opponent Xetu, A (Abulele)				Opponent Williams, S (Sergio)
3	3	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-08-13	rnd 6	type Standard	result 1
		Opponent Conradie, M (Magda)				Opponent Visagie, C (Christopher)

#	Games	Start				End
1	4	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 2	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Coetzee, C (Conlinn)				Opponent Strauss, B (Branden)
2	4	Tournament Ceres Open 2022				Tournament Western Cape Woman`s Championship 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-09-02	rnd 1	type Standard	result 1
		Opponent Xetu, A (Abulele)				Opponent Williams, S (Sergio)
3	3	Tournament CW Top Schools 2023				Tournament CW Top Schools 2023
		date 2023-08-12	rnd 4	type Standard	result 1	date 2023-08-13	rnd 6	type Standard	result 1
		Opponent Conradie, M (Magda)				Opponent Visagie, C (Christopher)

#	Games	Start				End
1	2	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 5	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Van Eck, MG (Marius Gerhardt)				Opponent Nel, F (Fanie)
2	1	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 3	type Rapid	result 1	date 2025-07-19	rnd 3	type Rapid	result 1
		Opponent Ziegers, D (Desiree)				Opponent Ziegers, D (Desiree)
3	1	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 1	type Rapid	result 1	date 2025-07-19	rnd 1	type Rapid	result 1
		Opponent Lee, T (Tai-Chi)				Opponent Lee, T (Tai-Chi)

#	Games	Start				End
1	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-14	rnd 6	type Blitz	result 1	date 2025-03-14	rnd 6	type Blitz	result 1
		Opponent Stevens, DA (Danielle-Ann)				Opponent Stevens, DA (Danielle-Ann)
2	1	Tournament Steinitz Festival 2025				Tournament Steinitz Festival 2025
		date 2025-03-14	rnd 3	type Blitz	result 1	date 2025-03-14	rnd 3	type Blitz	result 1
		Opponent Blignaut, N (Naude)				Opponent Blignaut, N (Naude)
3	1	Tournament Chess WP Individual Blitz 2023				Tournament Chess WP Individual Blitz 2023
		date 2023-01-03	rnd 7	type Blitz	result 1	date 2023-01-03	rnd 7	type Blitz	result 1
		Opponent Walters, N (Nicola)				Opponent Walters, N (Nicola)

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	Oosthuizen ,E (Ethan)	3	0	-425	2	0	-425	0	0	0	1	0	-425
1	Oosthuizen ,E (Ethan)	3	1540.1	1115.1	2	1451.9	1115.1	0	0	0	1	1222.4	1115.1
2	Stern ,M (Mason)	2	2	425	2	2	425	0	0	0	0	0	0
2	Stern ,M (Mason)	2	1427.5	1852.5	2	1408.8	1852.5	0	0	0	0	0	0
3	Don ,K (Kyle)	2	2	425	2	2	425	0	0	0	0	0	0
3	Don ,K (Kyle)	2	1304.2	1729.2	2	1204.5	1729.2	0	0	0	0	0	0
4	Ressel ,T (Tane)	2	0	-425	1	0	-425	0	0	0	1	0	-425
4	Ressel ,T (Tane)	2	1675.8	1250.8	1	1661.5	1250.8	0	0	0	1	1253.6	1250.8
5	Malherbe ,J (Jeevan)	2	0	-425	1	0	-425	0	0	0	1	0	-425
5	Malherbe ,J (Jeevan)	2	1489.1	1064.1	1	1418.5	1064.1	0	0	0	1	1192.8	1064.1
6	Stevens ,DA (Danielle-Ann)	2	1.5	212.5	0	0	0	1	0.5	0	1	1	425
6	Stevens ,DA (Danielle-Ann)	2	1578.2	1790.7	0	0	0	1	1521.3	1578.2	1	1203.6	2003.2
7	Conradie ,M (Magda)	1	1	425	1	1	425	0	0	0	0	0	0
7	Conradie ,M (Magda)	1	1245.3	1670.3	1	1212.2	1670.3	0	0	0	0	0	0
8	Visagie ,C (Christopher)	1	1	425	1	1	425	0	0	0	0	0	0
8	Visagie ,C (Christopher)	1	1448	1873	1	1437.3	1873	0	0	0	0	0	0
9	Roji ,C (Cwenga)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Roji ,C (Cwenga)	1	1256.9	831.9	1	1255.6	831.9	0	0	0	0	0	0
10	Njokweni ,L (Llyabona)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Njokweni ,L (Llyabona)	1	1367	942	1	1357.8	942	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Oosthuizen, W (Wesley)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms