Chess South Africa Ratings Database

PLAYER PAGE

Personal

Oosthuizen, OA (Ockert Andries)

Chess SA id

109083412

FIDE id

Date of birth

2009-02-07 (U18)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-16

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1277.1	1268.5	707.4	798.6
Raw rating	1277.1	1268.5	707.4	798.6
Weighted rating	1276.7	1267.8	707.4	798.6
Weighted performance	918	916.8	0	0
Floor	816.3	815.5	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	148.6	150.4	334.5	293.8
Highest rating	1330.7 2023-08-01	1329.8 2023-08-01	1200 2024-02-01	1200 2018-02-01
Highest raw rating	1316.3 2023-09-01	1315.5 2023-09-01	707.4 2024-02-01	798.6 2024-02-01
Highest weighted rating	1316.3 2025-03-01	1315.5 2025-03-01	707.4 2024-11-01	798.6 2024-11-01
Highest weighted performance	1330.7 2023-08-01	1329.8 2023-08-01	1200 2024-02-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1277.1	1268.5	707.4	798.6
Analysis
Rating	1277.1	1268.5	707.4	798.6
Raw rating	1277.1	1268.5	707.4	798.6
Weighted rating	1276.7	1267.8	707.4
Weighted performance	918	916.8	0
K-factor	36	36	40	40
Floor	816.3	815.5	500	500
Max/Min rating change allowed	148.6	150.4	334.5	293.8
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	1277.1	1268.5	707.4	798.6
New weighted rating	1276.8	1267.9	707.4	798.6
New weighted performance	917.6	916.4	0	0
Temp new rating	1277.1	1268.5	707.4	798.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1277.1	1268.5	707.4	798.6
New K-factor	36	36	40	40
New floor	816.3	815.5	500	500

Item	Main	Standard	Blitz
	0	0	0
	0	0	0
	0	0	0
	35	35	0
	0	0	0
	4	4	0
History	232	227	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	165	92.5	56.06	51.5	1115.9	1167.4
Standard	160	89.5	55.94	50.5	1115	1165.4
Rapid	0	0	0	0	0	0
Blitz	5	3	60	85	1147.4	1232.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1277.1	1268.5	707.4	798.6
2025-09-01	1277.1	1268.5	707.4	798.6
2025-08-01	1277.1	1268.5	707.4	798.6
2025-07-01	1277.1	1268.5	707.4	798.6
2025-06-01	1277.1	1268.5	707.4	798.6
2025-05-01	1277.1	1268.5	707.4	798.6
2025-04-01	1277.1	1268.5	707.4	798.6
2025-03-01	1277.1	1268.5	707.4	798.6
2025-02-01	1276.9	1268.4	707.4	798.6
2025-01-01	1276.3	1266.9	707.4	798.6
2024-12-01	1276.3	1266.9	707.4	798.6
2024-11-01	1276.3	1266.9	707.4	798.6
2024-10-01	1276.3	1266.9	707.4	798.6
2024-09-01	1276.3	1266.9	707.4	798.6
2024-08-01	1276.3	1266.9	707.4	798.6
2024-07-01	1276.3	1266.9	707.4	798.6
2024-06-01	1276.3	1266.9	707.4	798.6
2024-08-01	1276.3	1266.9	707.4	798.6
2024-04-01	1276.3	1266.9	707.4	798.6
2024-03-01	1276.3	1266.9	707.4	798.6
2024-02-01	1276.3	1266.9	707.4	798.6
2024-01-01	1276.3	1266.9	707.4	798.6
2023-12-01	1276.3	1266.9	707.4	798.6
2023-11-01	1276.3	1266.9	707.4	798.6

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	DR KKD Trials 2023 (U16)	2023-09-02	2023-09-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
2	2023 Thomas Lechelele North West Open (B)	2023-09-15	2023-09-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
3	DR KKD Meiringspark 2023 (U16)	2023-08-19	2023-08-19	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
4	Dr Kenneth Kaunda Volkies 2023 (A+B)	2023-06-10	2023-06-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
5	Dr KKD Curro 2023 (U16)	2023-05-13	2023-05-13	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
6	DR Kenneth Kaunda Curro 2023 (C)	2023-04-22	2023-04-22	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
7	Dr. Kenneth Kaunda Saamtrek 2023 (U16)	2023-02-04	2023-02-04	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
8	KHS 2021 (A)	2021-04-10	2021-04-10	Standard	Dr Kenneth Kaunda (NWP)	5	4	0	Yes	Analysis
9	Die Wilge 2020 (U12)	2020-03-14	2020-03-14	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
10	Wesvalia 2020 (C)	2020-02-15	2020-02-15	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
11	2019 South African Junior Team Championships (U12D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
12	Matlosana Test 2019 (C)	2019-12-07	2019-12-07	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
13	Stratvaal 2019 (B)	2019-11-02	2019-11-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
14	Hervormde Kerk Die Wilge Blitz 2019	2019-11-16	2019-11-16	Blitz	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
15	Matlosana Mall 2019 (C)	2019-10-04	2019-10-04	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
16	Doringkruin 2019 (U12)	2019-09-07	2019-09-07	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
17	Boys + Girls Tournament 2019 (U12)	2019-08-17	2019-08-17	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
18	Proewe 2019 (U12)	2019-08-03	2019-08-03	Standard	Dr Kenneth Kaunda (NWP)	5	5	1.5	Yes	Analysis
19	President 2019 (B)	2019-07-13	2019-07-13	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
20	Doringkruin 2019 (U12)	2019-06-08	2019-06-08	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
21	Volkies 2019 (C)	2019-05-11	2019-05-11	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
22	Strathvaal 2019 (U12)	2019-04-13	2019-03-13	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
23	Wesvalia 2019 (B)	2019-02-16	2019-02-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
24	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	1	Yes	Analysis
25	Strathvaal 2018 (C)	2018-11-03	2018-11-03	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
26	Matlosana Mall 2018 (U10)	2018-10-20	2018-10-20	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
27	Boys and Girls 2018 (U10 Boys)	2018-08-25	2018-08-25	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
28	Driefontein Proewe 2018 (O10 Seuns)	2018-07-28	2018-07-28	Standard	Dr Kenneth Kaunda (NWP)	5	5	5	Yes	Analysis
29	President 16 Junie 2018 (U10)	2018-06-16	2018-06-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
30	Hervormde Kerk 2018 (U10)	2018-03-10	2018-03-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
31	Wesvalia 2018 (U10)	2018-02-17	2018-02-17	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
32	South African Junior Team Championships 2017 (U10A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis

#	Games	Start				End
1	9	Tournament President 16 Junie 2018				Tournament Boys and Girls 2018
		date 2018-06-16	rnd 4	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 1
		Opponent Ackerman, J (Johandre)				Opponent Nel, J (Johanco)
2	5	Tournament Matlosana Test 2019				Tournament 2019 South African Junior Team Championships
		date 2019-12-07	rnd 5	type Standard	result 1	date 2020-01-06	rnd 4	type Standard	result 1
		Opponent Nkwe, T (Tumalano)				Opponent Mahlare, JM (John)
3	5	Tournament South African Junior Team Championships 2018				Tournament Wesvalia 2019
		date 2018-12-20	rnd 7	type Standard	result 1	date 2019-02-16	rnd 4	type Standard	result 1
		Opponent Peter, N (Noah)				Opponent Kobua, B (Boipelo)

#	Games	Start				End
1	9	Tournament President 16 Junie 2018				Tournament Boys and Girls 2018
		date 2018-06-16	rnd 4	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 1
		Opponent Ackerman, J (Johandre)				Opponent Nel, J (Johanco)
2	5	Tournament Matlosana Test 2019				Tournament 2019 South African Junior Team Championships
		date 2019-12-07	rnd 5	type Standard	result 1	date 2020-01-06	rnd 4	type Standard	result 1
		Opponent Nkwe, T (Tumalano)				Opponent Mahlare, JM (John)
3	5	Tournament South African Junior Team Championships 2018				Tournament Wesvalia 2019
		date 2018-12-20	rnd 7	type Standard	result 1	date 2019-02-16	rnd 4	type Standard	result 1
		Opponent Peter, N (Noah)				Opponent Kobua, B (Boipelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Hervormde Kerk Die Wilge Blitz 2019				Tournament Hervormde Kerk Die Wilge Blitz 2019
		date 2019-11-16	rnd 2	type Blitz	result 1	date 2019-11-16	rnd 3	type Blitz	result 1
		Opponent Goldschagg, R (Rudolf)				Opponent Devenish, T (Tara-Jane)
2	1	Tournament Hervormde Kerk Die Wilge Blitz 2019				Tournament Hervormde Kerk Die Wilge Blitz 2019
		date 2019-11-16	rnd 5	type Blitz	result 1	date 2019-11-16	rnd 5	type Blitz	result 1
		Opponent Clarke, W (Willie)				Opponent Clarke, W (Willie)

#	Games	Start				End
1	9	Tournament President 16 Junie 2018				Tournament Boys and Girls 2018
		date 2018-06-16	rnd 4	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 1
		Opponent Ackerman, J (Johandre)				Opponent Nel, J (Johanco)
2	5	Tournament Matlosana Test 2019				Tournament 2019 South African Junior Team Championships
		date 2019-12-07	rnd 5	type Standard	result 1	date 2020-01-06	rnd 4	type Standard	result 1
		Opponent Nkwe, T (Tumalano)				Opponent Mahlare, JM (John)
3	4	Tournament DR KKD Meiringspark 2023				Tournament DR KKD Trials 2023
		date 2023-08-19	rnd 3	type Standard	result 1	date 2023-09-02	rnd 1	type Standard	result 1
		Opponent Wessels, J (Johannes)				Opponent Meyer, J (Jared)

#	Games	Start				End
1	9	Tournament President 16 Junie 2018				Tournament Boys and Girls 2018
		date 2018-06-16	rnd 4	type Standard	result 1	date 2018-08-25	rnd 2	type Standard	result 1
		Opponent Ackerman, J (Johandre)				Opponent Nel, J (Johanco)
2	5	Tournament Matlosana Test 2019				Tournament 2019 South African Junior Team Championships
		date 2019-12-07	rnd 5	type Standard	result 1	date 2020-01-06	rnd 4	type Standard	result 1
		Opponent Nkwe, T (Tumalano)				Opponent Mahlare, JM (John)
3	4	Tournament DR KKD Meiringspark 2023				Tournament DR KKD Trials 2023
		date 2023-08-19	rnd 3	type Standard	result 1	date 2023-09-02	rnd 1	type Standard	result 1
		Opponent Wessels, J (Johannes)				Opponent Meyer, J (Jared)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Hervormde Kerk Die Wilge Blitz 2019				Tournament Hervormde Kerk Die Wilge Blitz 2019
		date 2019-11-16	rnd 2	type Blitz	result 1	date 2019-11-16	rnd 3	type Blitz	result 1
		Opponent Goldschagg, R (Rudolf)				Opponent Devenish, T (Tara-Jane)
2	1	Tournament Hervormde Kerk Die Wilge Blitz 2019				Tournament Hervormde Kerk Die Wilge Blitz 2019
		date 2019-11-16	rnd 5	type Blitz	result 1	date 2019-11-16	rnd 5	type Blitz	result 1
		Opponent Clarke, W (Willie)				Opponent Clarke, W (Willie)

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	Fouche ,H (Heinrich)	6	1.5	-212.5	6	1.5	-212.5	0	0	0	0	0	0
1	Fouche ,H (Heinrich)	6	1001.9	789.4	6	997.5	789.4	0	0	0	0	0	0
2	Van Romburgh ,DS (Daniel Struwig)	4	2	0	4	2	0	0	0	0	0	0	0
2	Van Romburgh ,DS (Daniel Struwig)	4	1049	1049	4	1087.2	1049	0	0	0	0	0	0
3	Krugel ,L (Lian)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
3	Krugel ,L (Lian)	4	1067.6	1280.1	4	1047.6	1280.1	0	0	0	0	0	0
4	Molusi ,K (Katlego)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Molusi ,K (Katlego)	3	1145.4	1003.7	3	1144.5	1003.7	0	0	0	0	0	0
5	Meyer ,J (Jared)	3	3	425	3	3	425	0	0	0	0	0	0
5	Meyer ,J (Jared)	3	1197.4	1622.4	3	1189.5	1622.4	0	0	0	0	0	0
6	Wessels ,J (Johannes)	3	3	425	3	3	425	0	0	0	0	0	0
6	Wessels ,J (Johannes)	3	1122.7	1547.7	3	1115.4	1547.7	0	0	0	0	0	0
7	Van Straaten ,P (Petrus)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
7	Van Straaten ,P (Petrus)	3	1053.3	911.7	3	1053	911.7	0	0	0	0	0	0
8	Mostert ,CF (Christiaan )	3	0	-425	3	0	-425	0	0	0	0	0	0
8	Mostert ,CF (Christiaan )	3	1136.1	711.1	3	1149.2	711.1	0	0	0	0	0	0
9	Hugo ,H (Howard)	3	1	-141.7	2	1	0	0	0	0	1	0	-425
9	Hugo ,H (Howard)	3	991.6	849.9	2	873.6	991.6	0	0	0	1	505.2	566.6
10	De Bruyn ,C (Chanique)	2	2	425	2	2	425	0	0	0	0	0	0
10	De Bruyn ,C (Chanique)	2	872.1	1297.1	2	881.1	1297.1	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

Oosthuizen, OA (Ockert Andries)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms