Chess South Africa Ratings Database

PLAYER PAGE

Personal

Witbooi, J (Juan)

Chess SA id

1070111524

FIDE id

Date of birth

2007-09-28 (U20)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1275.9	1264.5	1238.8	1200
Raw rating	1275.9	1264.5	1238.8	1200
Weighted rating	1275.7	1264.3	1238.8	1200
Weighted performance	878.5	787.2	0	0
Floor	823.4	824.3	738.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.8	151.3	156.9	165.8
Highest rating	1365.6 2019-07-01	1356.5 2019-07-01	1290.5 2023-02-01	1200 2018-10-01
Highest raw rating	1323.4 2023-09-01	1324.3 2023-09-01	1238.8 2024-02-01	1200 2024-02-01
Highest weighted rating	1323.4 2022-02-01	1324.3 2022-02-01	1238.8 2025-02-01	1200 2018-10-01
Highest weighted performance	1365.6 2019-07-01	1356.5 2019-07-01	1290.5 2023-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1275.9	1264.5	1238.8	1200
Analysis
Rating	1275.9	1264.5	1238.8	1200
Raw rating	1275.9	1264.5	1238.8	1200
Weighted rating	1275.7	1264.3	1238.8
Weighted performance	878.5	787.2	0
K-factor	36	36	36	36
Floor	823.4	824.3	738.8	700
Max/Min rating change allowed	148.8	151.3	156.9	165.8
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	1275.9	1264.5	1238.8	1200
New weighted rating	1275.7	1264.3	1238.8	1200
New weighted performance	871.2	779.8	0	0
Temp new rating	1275.9	1264.5	1238.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1275.9	1264.5	1238.8	1200
New K-factor	36	36	36	36
New floor	823.4	824.3	738.8	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	25	15	10
	0	0	0
	0	0	0
History	63	53	10

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	63	38.5	61.11	94.4	1182.7	1277.2
Standard	53	32.5	61.32	96.2	1179.6	1275.8
Rapid	10	6	60	85	1199.4	1284.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1275.9	1264.5	1238.8	1200
2025-09-30	1275.9	1264.5	1238.8	1200
2025-09-01	1275.9	1264.5	1238.8	1200
2025-08-01	1275.9	1264.5	1238.8	1200
2025-07-01	1275.9	1264.5	1238.8	1200
2025-06-01	1275.9	1264.5	1238.8	1200
2025-05-01	1275.9	1264.5	1238.8	1200
2025-04-01	1275.9	1264.5	1238.8	1200
2025-03-01	1275.9	1264.5	1238.8	1200
2025-02-01	1275.8	1264.4	1238.8	1200
2025-01-01	1275.3	1263.8	1238.8	1200
2024-12-01	1275.3	1263.8	1238.8	1200
2024-11-01	1275.3	1263.8	1238.8	1200
2024-10-01	1275.3	1263.8	1238.8	1200
2024-09-01	1275.3	1263.8	1238.8	1200
2024-08-01	1275.3	1263.8	1238.8	1200
2024-07-01	1275.3	1263.8	1238.8	1200
2024-09-01	1275.3	1263.8	1238.8	1200
2024-05-01	1275.3	1263.8	1238.8	1200
2024-04-01	1275.3	1263.8	1238.8	1200
2024-03-01	1275.3	1263.8	1238.8	1200
2024-02-01	1275.3	1263.8	1238.8	1200
2024-01-01	1275.3	1263.8	1238.8	1200
2023-12-01	1275.3	1263.8	1238.8	1200

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	Western Cape Top Schools 2023 (U18 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	5	1	Yes	Analysis
2	Overberg Top Schools 2023 (U15+U18)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
3	Overberg High School Closed 2023 (U17 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
4	Overberg High Schools Trails 2023 (U17)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
5	Overberg Schools Open Tournament 2023 (U16)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
6	OCF Chess Tournament 2 2020 (U14)	2020-02-01	2020-02-01	Standard	Overberg (WOS)	5	5	4.5	Yes	Analysis
7	2019 South African Junior Team Championships (U14D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
8	2019 Western Cape Club Championship (C)	2019-10-25	2019-10-27	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
9	Western Cape Top Schools 2019 (U13 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
10	Overberg Top Schools 2019 (U13)	2019-07-20	2019-07-20	Standard	Overberg (WOS)	5	5	5	Yes	Analysis
11	Western Cape Schools Individuals 2019 (U13 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	3	Yes	Analysis
12	Trial 2 Teddy/Toy Tournament 2019 (U14)	2019-04-06	2019-04-06	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament OCF Chess Tournament 2 2020				Tournament Overberg Schools Open Tournament 2023
		date 2020-02-01	rnd 1	type Standard	result 1	date 2023-02-11	rnd 2	type Rapid	result 1
		Opponent Botha, J (Joshua)				Opponent Mcosana, O (Oyama)
2	7	Tournament Western Cape Schools Individuals 2019				Tournament Overberg Top Schools 2019
		date 2019-05-19	rnd 5	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Groenewald, R (Randuaan)				Opponent Stuurman, L (Leilani)
3	5	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Galant, K (Keira)				Opponent Witbooi, G (Gere)

#	Games	Start				End
1	7	Tournament Western Cape Schools Individuals 2019				Tournament Overberg Top Schools 2019
		date 2019-05-19	rnd 5	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Groenewald, R (Randuaan)				Opponent Stuurman, L (Leilani)
2	6	Tournament OCF Chess Tournament 2 2020				Tournament Overberg High School Closed 2023
		date 2020-02-01	rnd 1	type Standard	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Botha, J (Joshua)				Opponent Damons, K (Keagon)
3	5	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Galant, K (Keira)				Opponent Witbooi, G (Gere)

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 3	type Rapid	result 1	date 2023-02-24	rnd 5	type Rapid	result 1
		Opponent Mills, A (Alexandra)				Opponent Poni, L (Likho)
2	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 2	type Rapid	result 1
		Opponent Davids, A (Abdaab)				Opponent Mcosana, O (Oyama)
3	1	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-11	rnd 5	type Rapid	result 1
		Opponent Latier, L (Lushib)				Opponent Latier, L (Lushib)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Western Cape Schools Individuals 2019				Tournament Overberg Top Schools 2019
		date 2019-05-19	rnd 5	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Groenewald, R (Randuaan)				Opponent Stuurman, L (Leilani)
2	5	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Galant, K (Keira)				Opponent Witbooi, G (Gere)
3	4	Tournament Overberg High Schools Trails 2023				Tournament Overberg High School Closed 2023
		date 2023-02-24	rnd 3	type Rapid	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Mills, A (Alexandra)				Opponent Damons, K (Keagon)

#	Games	Start				End
1	7	Tournament Western Cape Schools Individuals 2019				Tournament Overberg Top Schools 2019
		date 2019-05-19	rnd 5	type Standard	result 1	date 2019-07-20	rnd 5	type Standard	result 1
		Opponent Groenewald, R (Randuaan)				Opponent Stuurman, L (Leilani)
2	5	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 1	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Galant, K (Keira)				Opponent Witbooi, G (Gere)
3	3	Tournament OCF Chess Tournament 2 2020				Tournament Overberg High School Closed 2023
		date 2020-02-01	rnd 4	type Standard	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Claassen, R (Rhoda-Leigh)				Opponent Damons, K (Keagon)

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-24	rnd 3	type Rapid	result 1	date 2023-02-24	rnd 5	type Rapid	result 1
		Opponent Mills, A (Alexandra)				Opponent Poni, L (Likho)
2	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 2	type Rapid	result 1
		Opponent Davids, A (Abdaab)				Opponent Mcosana, O (Oyama)
3	1	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-11	rnd 5	type Rapid	result 1
		Opponent Latier, L (Lushib)				Opponent Latier, L (Lushib)

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	Gabriels ,J (Jawon)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Gabriels ,J (Jawon)	3	1103.3	1245	3	1093.5	1245	0	0	0	0	0	0
2	Latier ,L (Lushib)	2	1	0	0	0	0	2	1	0	0	0	0
2	Latier ,L (Lushib)	2	1200	1200	0	0	0	2	1200	1200	0	0	0
3	Oosthuizen ,C (Carla)	1	1	425	1	1	425	0	0	0	0	0	0
3	Oosthuizen ,C (Carla)	1	1193.4	1618.4	1	1188.4	1618.4	0	0	0	0	0	0
4	Koko ,A (Anisa)	1	1	425	1	1	425	0	0	0	0	0	0
4	Koko ,A (Anisa)	1	1391.9	1816.9	1	1379.9	1816.9	0	0	0	0	0	0
5	Ras ,N (Nizaamudeen)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Ras ,N (Nizaamudeen)	1	1157.9	732.9	1	1138.4	732.9	0	0	0	0	0	0
6	Botha ,J (Joshua)	1	1	425	1	1	425	0	0	0	0	0	0
6	Botha ,J (Joshua)	1	1030.1	1455.1	1	978.8	1455.1	0	0	0	0	0	0
7	Fortuin ,J (Jemaine)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Fortuin ,J (Jemaine)	1	1172.4	747.4	1	1166	747.4	0	0	0	0	0	0
8	Darby ,M (Mande-Marie)	1	1	425	1	1	425	0	0	0	0	0	0
8	Darby ,M (Mande-Marie)	1	1171	1596	1	1200	1596	0	0	0	0	0	0
9	Molemi ,K (Katleho)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Molemi ,K (Katleho)	1	1014.3	589.3	1	999	589.3	0	0	0	0	0	0
10	Mabamba ,S (Sibulele)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mabamba ,S (Sibulele)	1	1139.7	1564.7	1	1134.4	1564.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Witbooi, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms