Chess South Africa Ratings Database

PLAYER PAGE

Personal

Du Preez, R (Riette)

Chess SA id

2770162825

FIDE id

Date of birth

1977-09-08 (Adult)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1217	1200	1225	1200
Raw rating	1217	1200	1225	1200
Weighted rating	1188.9	1200	1177.3	1200
Weighted performance	0	0	0	0
Floor	717	700	725	700
K-factor	36	36	36	36
Min/Max rating change allowed	161.8	165.8	160	165.8
Highest rating	1217 2025-06-01	1200 2018-10-01	1225 2025-06-01	1200 2018-10-01
Highest raw rating	1217 2025-06-01	1200 2024-03-01	1225 2025-06-01	1200 2024-03-01
Highest weighted rating	1217 2018-10-01	1200 2018-10-01	1225 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-03-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1217	1200	1225	1200
Analysis
Rating	1217	1200	1225	1200
Raw rating	1217	1200	1225	1200
Weighted rating	1188.9	1200	1177.3
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	717	700	725	700
Max/Min rating change allowed	161.8	165.8	160	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	1217	1200	1225	1200
New weighted rating	1191.7	1200	1182.1	1200
New weighted performance	0	0	0	0
Temp new rating	1217	1200	1225	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1217	1200	1225	1200
New K-factor	36	36	36	36
New floor	717	700	725	700

Item	Main	Rapid
	0	0
	6	6
	0	0
	6	6
	0	0
	0	0
History	12	12

Games since
	Main 12	Standard 0		Rapid 12		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	6	4	66.67	141.7	1316.8	1458.5
Standard	0	0	0	0	0	0
Rapid	6	4	66.67	141.7	1316.8	1458.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	12	6	50	0	1225.2	1225.2
Standard	0	0	0	0	0	0
Rapid	12	6	50	0	1225.2	1225.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1217	1200	1225	1200
2025-09-01	1217	1200	1225	1200
2025-08-01	1217	1200	1225	1200
2025-07-01	1217	1200	1225	1200
2025-06-01	1217	1200	1225	1200
2025-05-01	1174.3	1200	1152.7	1200
2025-04-01	1174.3	1200	1152.7	1200
2025-03-01	1174.3	1200	1152.7	1200
2025-02-01	1174.3	1200	1152.7	1200
2025-01-01	1171.6	1200	1147.8	1200
2024-12-01	1171.6	1200	1147.8	1200
2024-11-01	1171.6	1200	1147.8	1200
2024-10-01	1171.6	1200	1147.8	1200
2024-09-01	1171.6	1200	1147.8	1200
2024-08-01	1171.6	1200	1147.8	1200
2024-07-01	1171.6	1200	1147.8	1200
2024-06-01	1171.6	1200	1147.8	1200
2024-08-01	1171.6	1200	1147.8	1200
2024-04-01	1171.6	1200	1147.8	1200
2024-03-01	1171.6	1200	1147.8	1200
2024-02-01	1171.6	1200	1147.8	1200
2024-01-01	1171.6	1200	1147.8	1200
2023-12-01	1171.6	1200	1147.8	1200
2023-11-01	1171.6	1200	1147.8	1200

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	Brave Knights Rapid 2025 (Open)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Brave Knights Rapid 2025 (Open)	2025-05-03	2025-05-03	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
2	Bonnievale Open Rapid 2023 (Developmen)	2023-10-21	2023-10-21	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 3	type Rapid	result 1	date 2025-05-03	rnd 4	type Rapid	result 1
		Opponent Steyn, A (Albert)				Opponent Klopper, M (Marli)
2	2	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2023-10-21	rnd 4	type Rapid	result 1
		Opponent Panduva, O (Ongeza)				Opponent Jacobs, J (Jofesline)
3	1	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 6	type Rapid	result 1
		Opponent Coetzer, J (Jean Pierre)				Opponent Coetzer, J (Jean Pierre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 3	type Rapid	result 1	date 2025-05-03	rnd 4	type Rapid	result 1
		Opponent Steyn, A (Albert)				Opponent Klopper, M (Marli)
2	2	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2023-10-21	rnd 4	type Rapid	result 1
		Opponent Panduva, O (Ongeza)				Opponent Jacobs, J (Jofesline)
3	1	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 6	type Rapid	result 1
		Opponent Coetzer, J (Jean Pierre)				Opponent Coetzer, J (Jean Pierre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 3	type Rapid	result 1	date 2025-05-03	rnd 4	type Rapid	result 1
		Opponent Steyn, A (Albert)				Opponent Klopper, M (Marli)
2	2	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2023-10-21	rnd 4	type Rapid	result 1
		Opponent Panduva, O (Ongeza)				Opponent Jacobs, J (Jofesline)
3	1	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 6	type Rapid	result 1
		Opponent Coetzer, J (Jean Pierre)				Opponent Coetzer, J (Jean Pierre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 3	type Rapid	result 1	date 2025-05-03	rnd 4	type Rapid	result 1
		Opponent Steyn, A (Albert)				Opponent Klopper, M (Marli)
2	2	Tournament Bonnievale Open Rapid 2023				Tournament Bonnievale Open Rapid 2023
		date 2023-10-21	rnd 3	type Rapid	result 1	date 2023-10-21	rnd 4	type Rapid	result 1
		Opponent Panduva, O (Ongeza)				Opponent Jacobs, J (Jofesline)
3	1	Tournament Brave Knights Rapid 2025				Tournament Brave Knights Rapid 2025
		date 2025-05-03	rnd 6	type Rapid	result 1	date 2025-05-03	rnd 6	type Rapid	result 1
		Opponent Coetzer, J (Jean Pierre)				Opponent Coetzer, J (Jean Pierre)

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	Coetzer ,J (Jean Pierre)	1	1	425	0	0	0	1	1	425	0	0	0
1	Coetzer ,J (Jean Pierre)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
2	Kuhn ,J (John- Peter)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Kuhn ,J (John- Peter)	1	1165.2	740.2	0	0	0	1	1248.3	740.2	0	0	0
3	Ivanov ,S (Slav)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Ivanov ,S (Slav)	1	1321.7	896.7	0	0	0	1	1293.1	896.7	0	0	0
4	Lirafu ,S (Siyambonga)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Lirafu ,S (Siyambonga)	1	1718.6	1293.6	0	0	0	1	1622.2	1293.6	0	0	0
5	Jacobs ,J (Jofesline)	1	1	425	0	0	0	1	1	425	0	0	0
5	Jacobs ,J (Jofesline)	1	1097.4	1522.4	0	0	0	1	1079.8	1522.4	0	0	0
6	Mattheys ,C (Clyde)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Mattheys ,C (Clyde)	1	1134.7	709.7	0	0	0	1	1087.2	709.7	0	0	0
7	Panduva ,O (Ongeza)	1	1	425	0	0	0	1	1	425	0	0	0
7	Panduva ,O (Ongeza)	1	1124	1549	0	0	0	1	1101.6	1549	0	0	0
8	Bukani ,H (Howard-Lee)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Bukani ,H (Howard-Lee)	1	1090.5	665.5	0	0	0	1	1104.8	665.5	0	0	0
9	Klopper ,M (Marli)	1	1	425	0	0	0	1	1	425	0	0	0
9	Klopper ,M (Marli)	1	1260.7	1685.7	0	0	0	1	1278	1685.7	0	0	0
10	Murada ,W (Willing)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Murada ,W (Willing)	1	1189.4	764.4	0	0	0	1	1188.8	764.4	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Du Preez, R (Riette)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms