Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koen, E (Eerhard)

Chess SA id

1080301951

FIDE id

Date of birth

2008-03-20 (U18)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-04-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1194.2	1200	1178	1200
Raw rating	1194.2	1200	1178	1200
Weighted rating	1193.3	1200	1175	1200
Weighted performance	0	0	0	0
Floor	719.2	700	730.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	167.2	165.8	171.1	165.8
Highest rating	1219.2 2024-05-01	1200 2024-05-01	1230.4 2024-05-01	1200 2024-05-01
Highest raw rating	1219.2 2024-05-01	1200 2024-05-01	1230.4 2024-05-01	1200 2024-05-01
Highest weighted rating	1219.2 2024-05-01	1200 2024-05-01	1230.4 2024-05-01	1200 2024-05-01
Highest weighted performance	1200 2024-12-01	1200 2024-05-01	1200 2024-12-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1194.2	1200	1178	1200
Analysis
Rating	1194.2	1200	1178	1200
Raw rating	1194.2	1200	1178	1200
Weighted rating	1193.3	1200	1175
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	719.2	700	730.4	700
Max/Min rating change allowed	167.2	165.8	171.1	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	1194.2	1200	1178	1200
New weighted rating	1193.3	1200	1175	1200
New weighted performance	0	0	0	0
Temp new rating	1194.2	1200	1178	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1194.2	1200	1178	1200
New K-factor	36	36	36	36
New floor	719.2	700	730.4	700

Item	Main	Rapid
	0	0
	0	0
	10	10
	0	0
	0	0
	0	0
History	10	10

Games since
	Main 10	Standard 0		Rapid 10		Blitz 0
Gender	Male
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	10	4	40	-85	1245	1160
Standard	0	0	0	0	0	0
Rapid	10	4	40	-85	1245	1160
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1194.2	1200	1178	1200
2025-09-30	1194.2	1200	1178	1200
2025-09-01	1194.2	1200	1178	1200
2025-08-01	1194.2	1200	1178	1200
2025-07-01	1194.2	1200	1178	1200
2025-06-01	1194.2	1200	1178	1200
2025-05-01	1194.2	1200	1178	1200
2025-04-01	1194.2	1200	1178	1200
2025-03-01	1194.2	1200	1178	1200
2025-02-01	1193.9	1200	1177.4	1200
2025-01-01	1188.3	1200	1159.8	1200
2024-12-01	1188.3	1200	1159.8	1200
2024-11-01	1188.3	1200	1159.8	1200
2024-10-01	1188.3	1200	1159.8	1200
2024-09-01	1188.3	1200	1159.8	1200
2024-08-01	1188.3	1200	1159.8	1200
2024-07-01	1188.3	1200	1159.8	1200
2024-09-01	1188.3	1200	1159.8	1200
2024-05-01	1219.2	1200	1230.4	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	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 Town Junior League - Qualifier 2 2024 (U18)	2024-04-20	2024-04-20	Rapid	Cape Town (WCT)	6	6	1	Yes	Analysis
2	Cape Town Junior League Qualifier 2024 (U18 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	4	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 1	type Rapid	result 0.5
		Opponent Craig, C (Connor)				Opponent Koegelenberg, U (Ulrich)
2	1	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 4	type Rapid	result 0.5	date 2024-04-20	rnd 4	type Rapid	result 0.5
		Opponent Ndau, J (Joel)				Opponent Ndau, J (Joel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-20	rnd 1	type Rapid	result 0.5
		Opponent Craig, C (Connor)				Opponent Koegelenberg, U (Ulrich)
2	1	Tournament Cape Town Junior League - Qualifier 2 2024				Tournament Cape Town Junior League - Qualifier 2 2024
		date 2024-04-20	rnd 4	type Rapid	result 0.5	date 2024-04-20	rnd 4	type Rapid	result 0.5
		Opponent Ndau, J (Joel)				Opponent Ndau, J (Joel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 6	type Rapid	result 1	date 2024-04-06	rnd 6	type Rapid	result 1
		Opponent Cronje, T (Taytan)				Opponent Cronje, T (Taytan)
2	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 2	type Rapid	result 1
		Opponent Craig, C (Connor)				Opponent Craig, C (Connor)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 6	type Rapid	result 1	date 2024-04-06	rnd 6	type Rapid	result 1
		Opponent Cronje, T (Taytan)				Opponent Cronje, T (Taytan)
2	1	Tournament Cape Town Junior League Qualifier 2024				Tournament Cape Town Junior League Qualifier 2024
		date 2024-04-06	rnd 2	type Rapid	result 1	date 2024-04-06	rnd 2	type Rapid	result 1
		Opponent Craig, C (Connor)				Opponent Craig, C (Connor)

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	Mhlatywa ,I (Inathi)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
1	Mhlatywa ,I (Inathi)	1	1081.9	1081.9	0	0	0	1	1035.6	1081.9	0	0	0
2	Roux ,T (Tarquin)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
2	Roux ,T (Tarquin)	1	1217.1	1217.1	0	0	0	1	1198.6	1217.1	0	0	0
3	Ndau ,J (Joel)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
3	Ndau ,J (Joel)	1	1118.2	1118.2	0	0	0	1	1170	1118.2	0	0	0
4	Steele ,A (Aiden)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Steele ,A (Aiden)	1	1249.3	824.3	0	0	0	1	1240	824.3	0	0	0
5	Caeser ,W (Waynika)	1	0	-425	0	0	0	1	0	-425	0	0	0
5	Caeser ,W (Waynika)	1	1357	932	0	0	0	1	1242.8	932	0	0	0
6	Nkohla ,T (Tsho-Sanda Hlumile)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Nkohla ,T (Tsho-Sanda Hlumile)	1	1167.6	742.6	0	0	0	1	1200	742.6	0	0	0
7	Cronje ,T (Taytan)	1	1	425	0	0	0	1	1	425	0	0	0
7	Cronje ,T (Taytan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Koegelenberg ,U (Ulrich)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Koegelenberg ,U (Ulrich)	1	1250.1	1250.1	0	0	0	1	1241.3	1250.1	0	0	0
9	Craig ,C (Connor)	1	1	425	0	0	0	1	1	425	0	0	0
9	Craig ,C (Connor)	1	1207.3	1632.3	0	0	0	1	1159	1632.3	0	0	0
10	Tsabola ,B (Bright)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Tsabola ,B (Bright)	1	1601.2	1176.2	0	0	0	1	1400.5	1176.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Koen, E (Eerhard)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms