Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koen, C (Cj)

Chess SA id

1040098121

FIDE id

Date of birth

2004-01-23 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-03-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1047.4	1094	1081.6	1200
Raw rating	1047.4	1094	1081.6	1200
Weighted rating	1047.4	1094	1081.6	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	206.1	192.8	196.3	165.8
Highest rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2020-01-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-10-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2020-01-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1047.4	1094	1081.6	1200
Analysis
Rating	1047.4	1094	1081.6	1200
Raw rating	1047.4	1094	1081.6	1200
Weighted rating	1047.4	1094	1081.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	206.1	192.8	196.3	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	1047.4	1094	1081.6	1200
New weighted rating	1047.4	1094	1081.6	1200
New weighted performance	0	0	0	0
Temp new rating	1047.4	1094	1081.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1047.4	1094	1081.6	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	10	5	5
	0	0	0
History	20	5	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	20	4	20	-255	1161.5	906.5
Standard	5	0	0	-425	1185.3	760.3
Rapid	15	4	26.67	-198.3	1153.5	955.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1047.4	1094	1081.6	1200
2025-09-01	1047.4	1094	1081.6	1200
2025-08-01	1047.4	1094	1081.6	1200
2025-07-01	1047.4	1094	1081.6	1200
2025-06-01	1047.4	1094	1081.6	1200
2025-05-01	1047.4	1094	1081.6	1200
2025-04-01	1047.4	1094	1081.6	1200
2025-03-01	1047.4	1094	1081.6	1200
2025-02-01	1047.4	1094	1081.6	1200
2025-01-01	1047.4	1094	1081.6	1200
2024-12-01	1047.4	1094	1081.6	1200
2024-11-01	1047.4	1094	1081.6	1200
2024-10-01	1047.4	1094	1081.6	1200
2024-09-01	1047.4	1094	1081.6	1200
2024-08-01	1047.4	1094	1081.6	1200
2024-07-01	1047.4	1094	1081.6	1200
2024-06-01	1047.4	1094	1081.6	1200
2024-08-01	1047.4	1094	1081.6	1200
2024-04-01	1047.4	1094	1081.6	1200
2024-03-01	1047.4	1094	1081.6	1200
2024-02-01	1047.4	1094	1081.6	1200
2024-01-01	1047.4	1094	1081.6	1200
2023-12-01	1047.4	1094	1081.6	1200
2023-11-01	1047.4	1094	1081.6	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	Cape Winelands Schools 2022 (U18 Boys)	2022-03-05	2022-03-05	Standard	Cape Winelands (WCW)	5	5	0	Yes	Analysis
2	Lanfeberg Schools Chess Trials 2022 (U18)	2022-02-26	2022-02-26	Rapid	Cape Winelands (WCW)	5	5	2	Yes	Analysis
3	Cape Winelands Schools Trials 1 2020 (U18 Boys)	2020-02-15	2020-02-15	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
4	Strategema Club 2018 (U16)	2018-03-10	2018-03-10	Rapid	Cape Winelands (WCW)	5	4	0	Yes	Analysis

#	Games	Start				End
1	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 4	type Rapid	result 1	date 2022-02-26	rnd 4	type Rapid	result 1
		Opponent George, C (Cornelius)				Opponent George, C (Cornelius)
2	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 2	type Rapid	result 1	date 2022-02-26	rnd 2	type Rapid	result 1
		Opponent De Wet, C (Christiaan)				Opponent De Wet, C (Christiaan)
3	1	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 6	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frikkie)				Opponent Janse Van Rensburg, F (Frikkie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 4	type Rapid	result 1	date 2022-02-26	rnd 4	type Rapid	result 1
		Opponent George, C (Cornelius)				Opponent George, C (Cornelius)
2	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 2	type Rapid	result 1	date 2022-02-26	rnd 2	type Rapid	result 1
		Opponent De Wet, C (Christiaan)				Opponent De Wet, C (Christiaan)
3	1	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 6	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frikkie)				Opponent Janse Van Rensburg, F (Frikkie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 4	type Rapid	result 1	date 2022-02-26	rnd 4	type Rapid	result 1
		Opponent George, C (Cornelius)				Opponent George, C (Cornelius)
2	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 2	type Rapid	result 1	date 2022-02-26	rnd 2	type Rapid	result 1
		Opponent De Wet, C (Christiaan)				Opponent De Wet, C (Christiaan)
3	1	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 6	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frikkie)				Opponent Janse Van Rensburg, F (Frikkie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 4	type Rapid	result 1	date 2022-02-26	rnd 4	type Rapid	result 1
		Opponent George, C (Cornelius)				Opponent George, C (Cornelius)
2	1	Tournament Lanfeberg Schools Chess Trials 2022				Tournament Lanfeberg Schools Chess Trials 2022
		date 2022-02-26	rnd 2	type Rapid	result 1	date 2022-02-26	rnd 2	type Rapid	result 1
		Opponent De Wet, C (Christiaan)				Opponent De Wet, C (Christiaan)
3	1	Tournament Cape Winelands Schools Trials 1 2020				Tournament Cape Winelands Schools Trials 1 2020
		date 2020-02-15	rnd 6	type Rapid	result 1	date 2020-02-15	rnd 6	type Rapid	result 1
		Opponent Janse Van Rensburg, F (Frikkie)				Opponent Janse Van Rensburg, F (Frikkie)

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	De Wet ,C (Christiaan)	2	1	0	1	0	-425	1	1	425	0	0	0
1	De Wet ,C (Christiaan)	2	1194	1194	1	1200	769	1	1196.4	1619	0	0	0
2	Kroutz ,M (Monray)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Kroutz ,M (Monray)	1	1213.8	788.8	1	1200	788.8	0	0	0	0	0	0
3	Van Zyl ,C (Christie)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Van Zyl ,C (Christie)	1	1121.7	696.7	1	1181.6	696.7	0	0	0	0	0	0
4	Adams ,M (Marlin)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Adams ,M (Marlin)	1	1179.1	754.1	1	1170.8	754.1	0	0	0	0	0	0
5	Benvenuto ,O (Oscar)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Benvenuto ,O (Oscar)	1	1224.6	799.6	1	1155.2	799.6	0	0	0	0	0	0
6	Philander ,G (Gemon)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Philander ,G (Gemon)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Nel ,K (Kyle)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Nel ,K (Kyle)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Karelse ,D (Diego)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Karelse ,D (Diego)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Adolf ,C (Clifford)	1	1	425	0	0	0	1	1	425	0	0	0
9	Adolf ,C (Clifford)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Kuhn ,J (John- Peter)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Kuhn ,J (John- Peter)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Koen, C (Cj)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms