Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Vollenhoven, I (Ian)

Chess SA id

188040685

FIDE id

Date of birth

1988-02-25 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-01-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1621.3	1646	1559.9	1646
Raw rating	1621.3	1646	1559.9	1646
Weighted rating	1617.3	1641.5	1556.1	1641.8
Weighted performance	0	0	0	0
Floor	1121.3	1146	1059.9	1146
K-factor	28	28	32	28
Min/Max rating change allowed	91	87.8	99.3	87.8
Highest rating	1621.3 2024-02-01	1646 2024-02-01	1559.9 2024-02-01	1646 2024-02-01
Highest raw rating	1621.3 2024-02-01	1646 2024-02-01	1559.9 2024-02-01	1646 2024-02-01
Highest weighted rating	1607.8 2025-08-01	1631.1 2025-08-01	1547.2 2025-08-01	1631.9 2025-08-01
Highest weighted performance	1246.9 2020-02-01	1200 2024-02-01	1201.3 2020-02-01	1275 2022-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1621.3	1646	1559.9	1646
Analysis
Rating	1621.3	1646	1559.9	1646
Raw rating	1621.3	1646	1559.9	1646
Weighted rating	1617.3	1641.5	1556.1
Weighted performance	0	0	0
K-factor	28	28	32	28
Floor	1121.3	1146	1059.9	1146
Max/Min rating change allowed	91	87.8	99.3	87.8
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	1621.3	1646	1559.9	1646
New weighted rating	1620	1644.5	1558.6	1644.6
New weighted performance	0	0	0	0
Temp new rating	1621.3	1646	1559.9	1646
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1621.3	1646	1559.9	1646
New K-factor	28	28	32	28
New floor	1121.3	1146	1059.9	1146

Item	Main	Rapid	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	7	0	7
	0	0	0
History	13	6	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	13	5.5	42.31	-65.4	1421.9	1356.5
Standard	0	0	0	0	0	0
Rapid	6	2	33.33	-141.7	1454.2	1312.5
Blitz	7	3.5	50	0	1394.2	1394.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1621.3	1646	1559.9	1646
2025-09-01	1621.3	1646	1559.9	1646
2025-08-01	1621.3	1646	1559.9	1646
2025-07-01	1621.3	1646	1559.9	1646
2025-06-01	1621.3	1646	1559.9	1646
2025-05-01	1621.3	1646	1559.9	1646
2025-04-01	1621.3	1646	1559.9	1646
2025-03-01	1621.3	1646	1559.9	1646
2025-02-01	1621.3	1646	1559.9	1646
2025-01-01	1621.3	1646	1559.9	1646
2024-12-01	1621.3	1646	1559.9	1646
2024-11-01	1621.3	1646	1559.9	1646
2024-10-01	1621.3	1646	1559.9	1646
2024-09-01	1621.3	1646	1559.9	1646
2024-08-01	1621.3	1646	1559.9	1646
2024-07-01	1621.3	1646	1559.9	1646
2024-06-01	1621.3	1646	1559.9	1646
2024-08-01	1621.3	1646	1559.9	1646
2024-04-01	1621.3	1646	1559.9	1646
2024-03-01	1621.3	1646	1559.9	1646
2024-02-01	1621.3	1646	1559.9	1646
2024-01-01	1621.3	1646	1559.9	1646
2023-12-01	1217.5	1200	1178.4	1222
2023-11-01	1217.5	1200	1178.4	1222

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	Chessheroes Choo Choo Challenge 2022	2022-01-08	2022-01-08	Blitz	Tshwane (GTP)	7	7	3.5	Yes	Analysis
2	Chess Heroes Open Rapid Challenge 2020	2020-02-01	2020-02-01	Rapid	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 3	type Blitz	result 1
		Opponent De Montbron, M (Maxime)				Opponent Mathivha, PA (Phathutshedzo)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 7	type Blitz	result 0.5	date 2022-01-08	rnd 7	type Blitz	result 0.5
		Opponent Potgieter, E (Edward)				Opponent Potgieter, E (Edward)
3	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Reyneke, L (Luke)				Opponent Reyneke, L (Luke)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-01	rnd 4	type Rapid	result 1
		Opponent Naidu, L (Layton)				Opponent Naidu, L (Layton)
2	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 1	type Rapid	result 1
		Opponent Mulholand, E (Emmy)				Opponent Mulholand, E (Emmy)

#	Games	Start				End
1	2	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 3	type Blitz	result 1
		Opponent De Montbron, M (Maxime)				Opponent Mathivha, PA (Phathutshedzo)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 7	type Blitz	result 0.5	date 2022-01-08	rnd 7	type Blitz	result 0.5
		Opponent Potgieter, E (Edward)				Opponent Potgieter, E (Edward)
3	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Reyneke, L (Luke)				Opponent Reyneke, L (Luke)

#	Games	Start				End
1	2	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 3	type Blitz	result 1
		Opponent De Montbron, M (Maxime)				Opponent Mathivha, PA (Phathutshedzo)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Reyneke, L (Luke)				Opponent Reyneke, L (Luke)
3	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-01	rnd 4	type Rapid	result 1
		Opponent Naidu, L (Layton)				Opponent Naidu, L (Layton)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 4	type Rapid	result 1	date 2020-02-01	rnd 4	type Rapid	result 1
		Opponent Naidu, L (Layton)				Opponent Naidu, L (Layton)
2	1	Tournament Chess Heroes Open Rapid Challenge 2020				Tournament Chess Heroes Open Rapid Challenge 2020
		date 2020-02-01	rnd 1	type Rapid	result 1	date 2020-02-01	rnd 1	type Rapid	result 1
		Opponent Mulholand, E (Emmy)				Opponent Mulholand, E (Emmy)

#	Games	Start				End
1	2	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 3	type Blitz	result 1
		Opponent De Montbron, M (Maxime)				Opponent Mathivha, PA (Phathutshedzo)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Reyneke, L (Luke)				Opponent Reyneke, L (Luke)

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	Mulholland ,E (Emmy)	1	1	425	0	0	0	1	1	425	0	0	0
1	Mulholland ,E (Emmy)	1	1239.4	1664.4	0	0	0	1	1200	1664.4	0	0	0
2	Bowers ,M (Mpho)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Bowers ,M (Mpho)	1	1391.7	966.7	0	0	0	1	1200	966.7	0	0	0
3	Kadenhe ,T (Tristen)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Kadenhe ,T (Tristen)	1	1308.7	883.7	0	0	0	1	1300.6	883.7	0	0	0
4	Pillay ,M (Mikhael)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Pillay ,M (Mikhael)	1	1442.5	1017.5	0	0	0	1	1102	1017.5	0	0	0
5	Klaver ,C (Cornelis)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Klaver ,C (Cornelis)	1	2017.5	1592.5	0	0	0	1	2055.2	1592.5	0	0	0
6	Naidu ,L (Layton)	1	1	425	0	0	0	1	1	425	0	0	0
6	Naidu ,L (Layton)	1	1325.4	1750.4	0	0	0	1	1200	1750.4	0	0	0
7	Manyama ,BR (Ronald)	1	0	-425	0	0	0	0	0	0	1	0	-425
7	Manyama ,BR (Ronald)	1	1485.8	1060.8	0	0	0	0	0	0	1	1495.9	1060.8
8	Fourie ,B (Brandon)	1	0	-425	0	0	0	0	0	0	1	0	-425
8	Fourie ,B (Brandon)	1	1200	775	0	0	0	0	0	0	1	1200	775
9	Bumhira ,W (Wilbert)	1	0	-425	0	0	0	0	0	0	1	0	-425
9	Bumhira ,W (Wilbert)	1	1200	775	0	0	0	0	0	0	1	1200	775
10	Mathivha ,PA (Phathutshedzo Andrew)	1	1	425	0	0	0	0	0	0	1	1	425
10	Mathivha ,PA (Phathutshedzo Andrew)	1	1489.5	1914.5	0	0	0	0	0	0	1	1464.1	1914.5

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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Personal

Van Vollenhoven, I (Ian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms