Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koch, E (Emma)

Chess SA id

2050098004

FIDE id

Date of birth

2005-09-01 (Adult)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-07-28

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	991	1034.2	977.6	1200
Raw rating	991	1034.2	977.6	1200
Weighted rating	991	1034.2	977.6	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	223.3	210	227.6	165.8
Highest rating	1200 2018-01-01	1200 2018-01-01	1200 2018-01-01	1200 2018-10-01
Highest raw rating	1200 2018-01-01	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-01-01	1200 2018-01-01	1200 2018-01-01	1200 2018-10-01
Highest weighted performance	1200 2018-01-01	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	991	1034.2	977.6	1200
Analysis
Rating	991	1034.2	977.6	1200
Raw rating	991	1034.2	977.6	1200
Weighted rating	991	1034.2	977.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	223.3	210	227.6	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	991	1034.2	977.6	1200
New weighted rating	991	1034.2	977.6	1200
New weighted performance	0	0	0	0
Temp new rating	991	1034.2	977.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	991	1034.2	977.6	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
	0	0	0
	0	0	0
History	22	6	16

Games since
	Main 0	Standard 0		Rapid 0		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	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	22	5	22.73	-231.8	913	681.2
Standard	6	1	16.67	-283.3	687.1	403.8
Rapid	16	4	25	-212.5	997.7	785.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	991	1034.2	977.6	1200
2025-09-01	991	1034.2	977.6	1200
2025-08-01	991	1034.2	977.6	1200
2025-07-01	991	1034.2	977.6	1200
2025-06-01	991	1034.2	977.6	1200
2025-05-01	991	1034.2	977.6	1200
2025-04-01	991	1034.2	977.6	1200
2025-03-01	991	1034.2	977.6	1200
2025-02-01	991	1034.2	977.6	1200
2025-01-01	991	1034.2	977.6	1200
2024-12-01	991	1034.2	977.6	1200
2024-11-01	991	1034.2	977.6	1200
2024-10-01	991	1034.2	977.6	1200
2024-09-01	991	1034.2	977.6	1200
2024-08-01	991	1034.2	977.6	1200
2024-07-01	991	1034.2	977.6	1200
2024-06-01	991	1034.2	977.6	1200
2024-08-01	991	1034.2	977.6	1200
2024-04-01	991	1034.2	977.6	1200
2024-03-01	991	1034.2	977.6	1200
2024-02-01	991	1034.2	977.6	1200
2024-01-01	991	1034.2	977.6	1200
2023-12-01	991	1034.2	977.6	1200
2023-11-01	991	1034.2	977.6	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 Chess - Top Schools 2018 (U11+U13 Girls)	2018-07-28	2018-07-28	Rapid	Cape Winelands (WCW)	3	3	0	Yes	Analysis
2	Rhenish Primary Chess Tournament 2018 (U14)	2018-05-12	2018-05-12	Rapid	Cape Winelands (WCW)	7	7	3	Yes	Analysis
3	Cape Winelands Schools Trials 1 2018 (U13 Girls)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	1	Yes	Analysis
4	Cape Winelands Schools Prestige 2018 (U13 Girls)	2018-03-24	2018-03-25	Standard	Cape Winelands (WCW)	7	6	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 6	type Rapid	result 1	date 2018-05-12	rnd 7	type Rapid	result 1
		Opponent Hoffman, A (Aiden)				Opponent Matheson, A (Alexander)
2	1	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 1	type Rapid	result 1	date 2018-05-12	rnd 1	type Rapid	result 1
		Opponent Van Zyl, C (Christie)				Opponent Van Zyl, C (Christie)
3	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 2	type Standard	result 1	date 2018-03-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, B (Beulin)				Opponent Van Rooyen, B (Beulin)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 2	type Standard	result 1	date 2018-03-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, B (Beulin)				Opponent Van Rooyen, B (Beulin)

#	Games	Start				End
1	2	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 6	type Rapid	result 1	date 2018-05-12	rnd 7	type Rapid	result 1
		Opponent Hoffman, A (Aiden)				Opponent Matheson, A (Alexander)
2	1	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 1	type Rapid	result 1	date 2018-05-12	rnd 1	type Rapid	result 1
		Opponent Van Zyl, C (Christie)				Opponent Van Zyl, C (Christie)
3	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 4	type Rapid	result 1	date 2018-03-03	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Lenadia)				Opponent Coetzee, L (Lenadia)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 6	type Rapid	result 1	date 2018-05-12	rnd 7	type Rapid	result 1
		Opponent Hoffman, A (Aiden)				Opponent Matheson, A (Alexander)
2	1	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 1	type Rapid	result 1	date 2018-05-12	rnd 1	type Rapid	result 1
		Opponent Van Zyl, C (Christie)				Opponent Van Zyl, C (Christie)
3	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 2	type Standard	result 1	date 2018-03-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, B (Beulin)				Opponent Van Rooyen, B (Beulin)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 2	type Standard	result 1	date 2018-03-24	rnd 2	type Standard	result 1
		Opponent Van Rooyen, B (Beulin)				Opponent Van Rooyen, B (Beulin)

#	Games	Start				End
1	2	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 6	type Rapid	result 1	date 2018-05-12	rnd 7	type Rapid	result 1
		Opponent Hoffman, A (Aiden)				Opponent Matheson, A (Alexander)
2	1	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 1	type Rapid	result 1	date 2018-05-12	rnd 1	type Rapid	result 1
		Opponent Van Zyl, C (Christie)				Opponent Van Zyl, C (Christie)
3	1	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Trials 1 2018
		date 2018-03-03	rnd 4	type Rapid	result 1	date 2018-03-03	rnd 4	type Rapid	result 1
		Opponent Coetzee, L (Lenadia)				Opponent Coetzee, L (Lenadia)

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	Muller ,G (Gillian)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Muller ,G (Gillian)	1	506.4	81.4	1	506.4	81.4	0	0	0	0	0	0
2	Pienaar ,C (Claudine)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Pienaar ,C (Claudine)	1	642.4	217.4	1	555.4	217.4	0	0	0	0	0	0
3	Mpukumpa ,S (Sisanda)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mpukumpa ,S (Sisanda)	1	631.7	206.7	1	500	206.7	0	0	0	0	0	0
4	Appollis ,C (Cindy)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Appollis ,C (Cindy)	1	500	75	1	500	75	0	0	0	0	0	0
5	Van Rooyen ,B (Beulin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Van Rooyen ,B (Beulin)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Hlakaza ,O (Okuhle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Hlakaza ,O (Okuhle)	1	642.1	217.1	1	549.2	217.1	0	0	0	0	0	0
7	Van Rooi ,R (Riesel)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Van Rooi ,R (Riesel)	1	1142.9	717.9	0	0	0	1	1103.2	717.9	0	0	0
8	Narain ,A (Arul)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Narain ,A (Arul)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Veliso ,A (Amyoli)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Veliso ,A (Amyoli)	1	1201.4	776.4	0	0	0	1	1203.2	776.4	0	0	0
10	Van Zyl ,C (Christie)	1	1	425	0	0	0	1	1	425	0	0	0
10	Van Zyl ,C (Christie)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Koch, E (Emma)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms