Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koen, J (Jeanne)

Chess SA id

2110193309

FIDE id

Date of birth

2011-09-07 (U16)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-26

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1173	1181.1	1181.3	1200
Raw rating	1173	1181.1	1181.3	1200
Weighted rating	1170.1	1179.3	1178.7	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.3	170.3	170.3	165.8
Highest rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1173	1181.1	1181.3	1200
Analysis
Rating	1173	1181.1	1181.3	1200
Raw rating	1173	1181.1	1181.3	1200
Weighted rating	1170.1	1179.3	1178.7
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	172.3	170.3	170.3	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	1173	1181.1	1181.3	1200
New weighted rating	1170	1179.2	1178.6	1200
New weighted performance	0	0	0	0
Temp new rating	1173	1181.1	1181.3	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1173	1181.1	1181.3	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

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

Games since
	Main 10	Standard 5		Rapid 5		Blitz 0
Gender	Female
Age group	U16
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	10	3.5	35	-127.5	1182.3	1054.8
Standard	5	2	40	-85	1154.8	1069.8
Rapid	5	1.5	30	-170	1209.9	1039.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1173	1181.1	1181.3	1200
2025-09-01	1173	1181.1	1181.3	1200
2025-08-01	1173	1181.1	1181.3	1200
2025-07-01	1173	1181.1	1181.3	1200
2025-06-01	1173	1181.1	1181.3	1200
2025-05-01	1173	1181.1	1181.3	1200
2025-04-01	1173	1181.1	1181.3	1200
2025-03-01	1173	1181.1	1181.3	1200
2025-02-01	1172.6	1181.1	1180.4	1200
2025-01-01	1156.2	1174.4	1160	1200
2024-12-01	1156.2	1174.4	1160	1200
2024-11-01	1156.2	1174.4	1160	1200
2024-10-01	1156.2	1174.4	1160	1200
2024-09-01	1156.2	1174.4	1160	1200
2024-08-01	1156.2	1174.4	1160	1200
2024-07-01	1176.1	1174.4	1200	1200
2024-06-01	1176.1	1174.4	1200	1200
2024-08-01	1176.1	1174.4	1200	1200
2024-04-01	1176.1	1174.4	1200	1200
2024-03-01	1176.1	1174.4	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	CT Metro Central District Top Schools 2024 (U13 Mixed)	2024-07-26	2024-07-26	Rapid	Cape Town (WCT)	5	5	1.5	Yes	Analysis
2	CT Metro Central District Schools Chess Individuals Trials 2024 (U13 Girls)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-26	rnd 4	type Rapid	result 1	date 2024-07-26	rnd 4	type Rapid	result 1
		Opponent Keita, M (Mohamed)				Opponent Keita, M (Mohamed)
2	1	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-26	rnd 2	type Rapid	result 0.5	date 2024-07-26	rnd 2	type Rapid	result 0.5
		Opponent Gifford, I (Isaac)				Opponent Gifford, I (Isaac)
3	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Qoto, A (Asange)				Opponent Qoto, A (Asange)

#	Games	Start				End
1	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Qoto, A (Asange)				Opponent Qoto, A (Asange)
2	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 1	type Standard	result 1
		Opponent Lambrechts, K (Kailynn)				Opponent Lambrechts, K (Kailynn)

#	Games	Start				End
1	1	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-26	rnd 4	type Rapid	result 1	date 2024-07-26	rnd 4	type Rapid	result 1
		Opponent Keita, M (Mohamed)				Opponent Keita, M (Mohamed)
2	1	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-26	rnd 2	type Rapid	result 0.5	date 2024-07-26	rnd 2	type Rapid	result 0.5
		Opponent Gifford, I (Isaac)				Opponent Gifford, I (Isaac)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-26	rnd 4	type Rapid	result 1	date 2024-07-26	rnd 4	type Rapid	result 1
		Opponent Keita, M (Mohamed)				Opponent Keita, M (Mohamed)
2	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Qoto, A (Asange)				Opponent Qoto, A (Asange)
3	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 1	type Standard	result 1
		Opponent Lambrechts, K (Kailynn)				Opponent Lambrechts, K (Kailynn)

#	Games	Start				End
1	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Qoto, A (Asange)				Opponent Qoto, A (Asange)
2	1	Tournament CT Metro Central District Schools Chess Individuals Trials 2024				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2024-02-03	rnd 1	type Standard	result 1	date 2024-02-03	rnd 1	type Standard	result 1
		Opponent Lambrechts, K (Kailynn)				Opponent Lambrechts, K (Kailynn)

#	Games	Start				End
1	1	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-26	rnd 4	type Rapid	result 1	date 2024-07-26	rnd 4	type Rapid	result 1
		Opponent Keita, M (Mohamed)				Opponent Keita, M (Mohamed)

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	Lambrechts ,K (Kailynn)	1	1	425	1	1	425	0	0	0	0	0	0
1	Lambrechts ,K (Kailynn)	1	1208.6	1633.6	1	1236.4	1633.6	0	0	0	0	0	0
2	Qoto ,A (Asange)	1	1	425	1	1	425	0	0	0	0	0	0
2	Qoto ,A (Asange)	1	1092.1	1517.1	1	1094.8	1517.1	0	0	0	0	0	0
3	Williams ,A (Azraa)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Williams ,A (Azraa)	1	1143.8	718.8	1	1142.4	718.8	0	0	0	0	0	0
4	Johannes ,Z (Zoe)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Johannes ,Z (Zoe)	1	1163	738	1	1179.8	738	0	0	0	0	0	0
5	Mdabuli ,S (Simbongile)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mdabuli ,S (Simbongile)	1	1166.7	741.7	1	1200	741.7	0	0	0	0	0	0
6	Gopaul ,A (Aaren)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Gopaul ,A (Aaren)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Keita ,M (Mohamed)	1	1	425	0	0	0	1	1	425	0	0	0
7	Keita ,M (Mohamed)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Taft ,S (Shane)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Taft ,S (Shane)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Bagley ,Z (Zakariah)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Bagley ,Z (Zakariah)	1	1287.6	862.6	0	0	0	1	1231.6	862.6	0	0	0
10	Gifford ,I (Isaac)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
10	Gifford ,I (Isaac)	1	1161.9	1161.9	0	0	0	1	1200	1161.9	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, J (Jeanne)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms