Chess South Africa Ratings Database

PLAYER PAGE

Personal

Retief, WJ (Willem Jacobus)

Chess SA id

109078395

FIDE id

Date of birth

2009-02-10 (U18)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-05-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	962.7	969.7	573	517
Raw rating	962.7	969.7	573	517
Weighted rating	962.7	969.7	573	517
Weighted performance	149.5	125.4	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	232.5	230.2	405.1	438.8
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2018-02-01	1200 2024-02-01
Highest raw rating	962.7 2024-02-01	969.7 2024-02-01	573 2024-02-01	517 2024-02-01
Highest weighted rating	962.7 2024-11-01	969.7 2024-11-01	573 2024-11-01	517 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	962.7	969.7	573	517
Analysis
Rating	962.7	969.7	573	517
Raw rating	962.7	969.7	573	517
Weighted rating	962.7	969.7	573
Weighted performance	149.5	125.4	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	232.5	230.2	405.1	438.8
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	962.7	969.7	573	517
New weighted rating	962.7	969.7	573	517
New weighted performance	149.2	125.1	0	0
Temp new rating	962.7	969.7	573	517
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	962.7	969.7	573	517
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	103	88	15

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	51	24.5	48.04	-16.7	971.9	955.2
Standard	41	21	51.22	10.4	963.8	974.2
Rapid	10	3.5	35	-127.5	1005.2	877.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	962.7	969.7	573	517
2025-09-01	962.7	969.7	573	517
2025-08-01	962.7	969.7	573	517
2025-07-01	962.7	969.7	573	517
2025-06-01	962.7	969.7	573	517
2025-05-01	962.7	969.7	573	517
2025-04-01	962.7	969.7	573	517
2025-03-01	962.7	969.7	573	517
2025-02-01	962.7	969.7	573	517
2025-01-01	962.7	969.7	573	517
2024-12-01	962.7	969.7	573	517
2024-11-01	962.7	969.7	573	517
2024-10-01	962.7	969.7	573	517
2024-09-01	962.7	969.7	573	517
2024-08-01	962.7	969.7	573	517
2024-07-01	962.7	969.7	573	517
2024-06-01	962.7	969.7	573	517
2024-08-01	962.7	969.7	573	517
2024-04-01	962.7	969.7	573	517
2024-03-01	962.7	969.7	573	517
2024-02-01	962.7	969.7	573	517
2024-01-01	962.7	969.7	573	517
2023-12-01	962.7	969.7	573	517
2023-11-01	962.7	969.7	573	517

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	2019 Super 12 Laerskole (Juniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	1.5	Yes	Analysis
2	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	2	Yes	Analysis
3	Matlosana Mall 2018 (U10)	2018-10-20	2018-10-20	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
4	Boys and Girls 2018 (U10 Boys)	2018-08-25	2018-08-25	Standard	Dr Kenneth Kaunda (NWP)	5	4	2	Yes	Analysis
5	Driefontein Proewe 2018 (O10 Seuns)	2018-07-28	2018-07-28	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
6	2018 Super 12 (Junior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
7	Volkies 2018 (U10)	2018-05-12	2018-05-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
8	Hervormde Kerk 2018 (U10)	2018-04-21	2018-04-21	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
9	Wesvalia 2018 (U10)	2018-02-17	2018-02-17	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
10	Laerskool Volkskool 2018 (U10)	2018-02-03	2018-02-03	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament Laerskool Volkskool 2018				Tournament Laerskool Volkskool 2018
		date 2018-02-03	rnd 1	type Standard	result 0.5	date 2018-02-03	rnd 4	type Standard	result 0.5
		Opponent Fourie, A (Alex)				Opponent De Bruyn, C (Chanique)
2	3	Tournament Volkies 2018				Tournament Driefontein Proewe 2018
		date 2018-05-12	rnd 5	type Standard	result 1	date 2018-07-28	rnd 2	type Standard	result 1
		Opponent Krugel, L (Lian)				Opponent Kotze, L (Lukas)
3	3	Tournament Wesvalia 2018				Tournament Hervormde Kerk 2018
		date 2018-02-17	rnd 4	type Standard	result 1	date 2018-04-18	rnd 1	type Standard	result 1
		Opponent Gird, D (Denieke)				Opponent Williams, C (Caitlyn)

#	Games	Start				End
1	4	Tournament Laerskool Volkskool 2018				Tournament Laerskool Volkskool 2018
		date 2018-02-03	rnd 1	type Standard	result 0.5	date 2018-02-03	rnd 4	type Standard	result 0.5
		Opponent Fourie, A (Alex)				Opponent De Bruyn, C (Chanique)
2	3	Tournament Volkies 2018				Tournament Driefontein Proewe 2018
		date 2018-05-12	rnd 5	type Standard	result 1	date 2018-07-28	rnd 2	type Standard	result 1
		Opponent Krugel, L (Lian)				Opponent Kotze, L (Lukas)
3	3	Tournament Wesvalia 2018				Tournament Hervormde Kerk 2018
		date 2018-02-17	rnd 4	type Standard	result 1	date 2018-04-18	rnd 1	type Standard	result 1
		Opponent Gird, D (Denieke)				Opponent Williams, C (Caitlyn)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 3	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Thompson, S (Skyla)				Opponent Smith, LM (Luhane)
2	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 3	type Rapid	result 0.5	date 2019-05-04	rnd 3	type Rapid	result 0.5
		Opponent Erlank, BG (Brandon)				Opponent Erlank, BG (Brandon)
3	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-04	rnd 1	type Rapid	result 1
		Opponent Weitz, E (Eben)				Opponent Weitz, E (Eben)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Volkies 2018				Tournament Driefontein Proewe 2018
		date 2018-05-12	rnd 5	type Standard	result 1	date 2018-07-28	rnd 2	type Standard	result 1
		Opponent Krugel, L (Lian)				Opponent Kotze, L (Lukas)
2	3	Tournament Wesvalia 2018				Tournament Hervormde Kerk 2018
		date 2018-02-17	rnd 4	type Standard	result 1	date 2018-04-18	rnd 1	type Standard	result 1
		Opponent Gird, D (Denieke)				Opponent Williams, C (Caitlyn)
3	2	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 2018-12-17	rnd 3	type Standard	result 1
		Opponent Botha, OJ (Owen)				Opponent Wolmarans, CH (Cornelius)

#	Games	Start				End
1	3	Tournament Volkies 2018				Tournament Driefontein Proewe 2018
		date 2018-05-12	rnd 5	type Standard	result 1	date 2018-07-28	rnd 2	type Standard	result 1
		Opponent Krugel, L (Lian)				Opponent Kotze, L (Lukas)
2	3	Tournament Wesvalia 2018				Tournament Hervormde Kerk 2018
		date 2018-02-17	rnd 4	type Standard	result 1	date 2018-04-18	rnd 1	type Standard	result 1
		Opponent Gird, D (Denieke)				Opponent Williams, C (Caitlyn)
3	2	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 2018-12-17	rnd 3	type Standard	result 1
		Opponent Botha, OJ (Owen)				Opponent Wolmarans, CH (Cornelius)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 3	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Thompson, S (Skyla)				Opponent Smith, LM (Luhane)
2	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-04	rnd 1	type Rapid	result 1
		Opponent Weitz, E (Eben)				Opponent Weitz, E (Eben)

No games found.

#	Games	Start				End

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	Botha ,P (Philip)	3	3	425	3	3	425	0	0	0	0	0	0
1	Botha ,P (Philip)	3	1075.9	1500.9	3	1064.4	1500.9	0	0	0	0	0	0
2	Fourie ,A (Alex)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Fourie ,A (Alex)	3	820.6	1103.9	3	819.4	1103.9	0	0	0	0	0	0
3	Van Straaten ,P (Petrus)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	Van Straaten ,P (Petrus)	3	904.7	479.7	3	906.3	479.7	0	0	0	0	0	0
4	Hattingh ,S (Salome)	2	1	0	2	1	0	0	0	0	0	0	0
4	Hattingh ,S (Salome)	2	1093.2	1093.2	2	1077.8	1093.2	0	0	0	0	0	0
5	Groenewald ,B (Ben)	2	2	425	2	2	425	0	0	0	0	0	0
5	Groenewald ,B (Ben)	2	520.2	945.2	2	525	945.2	0	0	0	0	0	0
6	Williams ,C (Caitlyn)	2	2	425	2	2	425	0	0	0	0	0	0
6	Williams ,C (Caitlyn)	2	1094.2	1519.2	2	1077.2	1519.2	0	0	0	0	0	0
7	Krugel ,L (Lian)	2	2	425	2	2	425	0	0	0	0	0	0
7	Krugel ,L (Lian)	2	1166.4	1591.4	2	1159.6	1591.4	0	0	0	0	0	0
8	Fourie ,M (Mila)	2	1	0	2	1	0	0	0	0	0	0	0
8	Fourie ,M (Mila)	2	638.8	638.8	2	638.8	638.8	0	0	0	0	0	0
9	Naude ,J (Juhan)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Naude ,J (Juhan)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Benadie ,JG (Jg)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Benadie ,JG (Jg)	1	798.8	373.8	1	818	373.8	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

Retief, WJ (Willem Jacobus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms