Chess South Africa Ratings Database

PLAYER PAGE

Personal

Witbooi, J (Joy)

Chess SA id

200043136

FIDE id

Date of birth

2000-01-05 (Adult)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-04-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	808	808	645.2	570.4
Raw rating	808	808	645.2	570.4
Weighted rating	807.5	807.3	645.2	570.4
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	289.9	289.9	365.5	406.6
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest raw rating	808 2024-02-01	808 2024-02-01	645.2 2024-02-01	570.4 2024-02-01
Highest weighted rating	808 2024-11-01	808 2024-11-01	645.2 2024-11-01	570.4 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	808	808	645.2	570.4
Analysis
Rating	808	808	645.2	570.4
Raw rating	808	808	645.2	570.4
Weighted rating	807.5	807.3	645.2
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	289.9	289.9	365.5	406.6
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	808	808	645.2	570.4
New weighted rating	807.8	807.8	645.2	570.4
New weighted performance	0	0	0	0
Temp new rating	808	808	645.2	570.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	808	808	645.2	570.4
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	91	60	31

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-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	21	9.5	45.24	-40.5	941.2	900.8
Standard	15	6.5	43.33	-56.7	958.8	902.2
Rapid	6	3	50	0	897.3	897.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	808	808	645.2	570.4
2025-09-01	808	808	645.2	570.4
2025-08-01	808	808	645.2	570.4
2025-07-01	808	808	645.2	570.4
2025-06-01	808	808	645.2	570.4
2025-05-01	808	808	645.2	570.4
2025-04-01	808	808	645.2	570.4
2025-03-01	808	808	645.2	570.4
2025-02-01	808	808	645.2	570.4
2025-01-01	808	808	645.2	570.4
2024-12-01	808	808	645.2	570.4
2024-11-01	808	808	645.2	570.4
2024-10-01	808	808	645.2	570.4
2024-09-01	808	808	645.2	570.4
2024-08-01	808	808	645.2	570.4
2024-07-01	808	808	645.2	570.4
2024-06-01	808	808	645.2	570.4
2024-08-01	808	808	645.2	570.4
2024-04-01	808	808	645.2	570.4
2024-03-01	808	808	645.2	570.4
2024-02-01	808	808	645.2	570.4
2024-01-01	808	808	645.2	570.4
2023-12-01	753.9	742.4	645.2	570.4
2023-11-01	753.9	742.4	645.2	570.4

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	Spar All Girls Festival 2018	2018-04-28	2018-04-29	Standard	Buffalo City (EBC)	8	8	3	Yes	Analysis
2	Cape Winelands Schools Trials 1 2018 (U18 Girls)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
3	Cape Winelands Schools Prestige 2018 (U18 Girls)	2018-03-24	2018-03-25	Standard	Cape Winelands (WCW)	7	7	3.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2018				Tournament Spar All Girls Festival 2018
		date 2018-03-25	rnd 7	type Standard	result 0.5	date 2018-04-28	rnd 2	type Standard	result 1
		Opponent Pietersen, J (Jody-Lee)				Opponent Mhlabane, N (Nelitha)
2	3	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Olivier, E (Elginay)				Opponent Kritzinger, A (Abbigail)
3	1	Tournament Spar All Girls Festival 2018				Tournament Spar All Girls Festival 2018
		date 2018-04-29	rnd 7	type Standard	result 1	date 2018-04-29	rnd 7	type Standard	result 1
		Opponent Hendricks, LC (Lesego)				Opponent Hendricks, LC (Lesego)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2018				Tournament Spar All Girls Festival 2018
		date 2018-03-25	rnd 7	type Standard	result 0.5	date 2018-04-28	rnd 2	type Standard	result 1
		Opponent Pietersen, J (Jody-Lee)				Opponent Mhlabane, N (Nelitha)
2	3	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Olivier, E (Elginay)				Opponent Kritzinger, A (Abbigail)
3	1	Tournament Spar All Girls Festival 2018				Tournament Spar All Girls Festival 2018
		date 2018-04-29	rnd 7	type Standard	result 1	date 2018-04-29	rnd 7	type Standard	result 1
		Opponent Hendricks, LC (Lesego)				Opponent Hendricks, LC (Lesego)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 6	type Rapid	result 1	date 2018-03-03	rnd 6	type Rapid	result 1
		Opponent Sym, M (Mcayla)				Opponent Sym, M (Mcayla)
2	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 4	type Rapid	result 1	date 2018-03-03	rnd 4	type Rapid	result 1
		Opponent Williams, B (Bernelee)				Opponent Williams, B (Bernelee)
3	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 2	type Rapid	result 1	date 2018-03-03	rnd 2	type Rapid	result 1
		Opponent September, A (Amelia)				Opponent September, A (Amelia)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Olivier, E (Elginay)				Opponent Kritzinger, A (Abbigail)
2	2	Tournament Spar All Girls Festival 2018				Tournament Spar All Girls Festival 2018
		date 2018-04-28	rnd 1	type Standard	result 1	date 2018-04-28	rnd 2	type Standard	result 1
		Opponent Reddy, D (Drianca)				Opponent Mhlabane, N (Nelitha)
3	1	Tournament Spar All Girls Festival 2018				Tournament Spar All Girls Festival 2018
		date 2018-04-29	rnd 7	type Standard	result 1	date 2018-04-29	rnd 7	type Standard	result 1
		Opponent Hendricks, LC (Lesego)				Opponent Hendricks, LC (Lesego)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Olivier, E (Elginay)				Opponent Kritzinger, A (Abbigail)
2	2	Tournament Spar All Girls Festival 2018				Tournament Spar All Girls Festival 2018
		date 2018-04-28	rnd 1	type Standard	result 1	date 2018-04-28	rnd 2	type Standard	result 1
		Opponent Reddy, D (Drianca)				Opponent Mhlabane, N (Nelitha)
3	1	Tournament Spar All Girls Festival 2018				Tournament Spar All Girls Festival 2018
		date 2018-04-29	rnd 7	type Standard	result 1	date 2018-04-29	rnd 7	type Standard	result 1
		Opponent Hendricks, LC (Lesego)				Opponent Hendricks, LC (Lesego)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 6	type Rapid	result 1	date 2018-03-03	rnd 6	type Rapid	result 1
		Opponent Sym, M (Mcayla)				Opponent Sym, M (Mcayla)
2	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 4	type Rapid	result 1	date 2018-03-03	rnd 4	type Rapid	result 1
		Opponent Williams, B (Bernelee)				Opponent Williams, B (Bernelee)
3	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 2	type Rapid	result 1	date 2018-03-03	rnd 2	type Rapid	result 1
		Opponent September, A (Amelia)				Opponent September, A (Amelia)

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	Booysen ,L (Lee-Ann)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Booysen ,L (Lee-Ann)	2	903.6	478.6	1	880.3	478.6	1	837.1	478.6	0	0	0
2	Dastile ,L (Lulamela)	1	1	425	1	1	425	0	0	0	0	0	0
2	Dastile ,L (Lulamela)	1	1110.2	1535.2	1	1200	1535.2	0	0	0	0	0	0
3	Hendricks ,LC (Lesego Calista)	1	1	425	1	1	425	0	0	0	0	0	0
3	Hendricks ,LC (Lesego Calista)	1	842.1	1267.1	1	838.4	1267.1	0	0	0	0	0	0
4	Commaille ,E (Erin)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Commaille ,E (Erin)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Adams ,L (Logan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Adams ,L (Logan)	1	778	353	1	778	353	0	0	0	0	0	0
6	Pietersen ,J (Jody-Lee)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Pietersen ,J (Jody-Lee)	1	883.1	883.1	1	844.2	883.1	0	0	0	0	0	0
7	Kritzinger ,A (Abbigail)	1	1	425	1	1	425	0	0	0	0	0	0
7	Kritzinger ,A (Abbigail)	1	662.1	1087.1	1	651.6	1087.1	0	0	0	0	0	0
8	Van Der Walt ,AB (Bernize)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Van Der Walt ,AB (Bernize)	1	1408.2	983.2	1	1412.4	983.2	0	0	0	0	0	0
9	Visser ,L (Louhandri)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Visser ,L (Louhandri)	1	1019	594	1	1019	594	0	0	0	0	0	0
10	Olivier ,E (Elginay)	1	1	425	1	1	425	0	0	0	0	0	0
10	Olivier ,E (Elginay)	1	786.5	1211.5	1	784.2	1211.5	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

Witbooi, J (Joy)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms