Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzer, K (Katherine)

Chess SA id

1130149224

FIDE id

Date of birth

2013-05-15 (U14)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1139.5	1128	1200	1200
Raw rating	1139.5	1128	1200	1200
Weighted rating	1139.5	1128	1200	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	180.7	183.7	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1139.5	1128	1200	1200
Analysis
Rating	1139.5	1128	1200	1200
Raw rating	1139.5	1128	1200	1200
Weighted rating	1139.5	1128	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	180.7	183.7	165.8	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	1139.5	1128	1200	1200
New weighted rating	1139.5	1128	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1139.5	1128	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1139.5	1128	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	14	14
	0	0
	0	0
History	14	14

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	West Rand (GWR)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	14	5	35.71	-121.4	1209.1	1087.6
Standard	14	5	35.71	-121.4	1209.1	1087.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1139.5	1128	1200	1200
2025-09-01	1139.5	1128	1200	1200
2025-08-01	1139.5	1128	1200	1200
2025-07-01	1139.5	1128	1200	1200
2025-06-01	1139.5	1128	1200	1200
2025-05-01	1139.5	1128	1200	1200
2025-04-01	1139.5	1128	1200	1200
2025-03-01	1139.5	1128	1200	1200
2025-02-01	1139.5	1128	1200	1200
2025-01-01	1139.5	1128	1200	1200
2024-12-01	1139.5	1128	1200	1200
2024-11-01	1139.5	1128	1200	1200
2024-10-01	1139.5	1128	1200	1200
2024-09-01	1139.5	1128	1200	1200
2024-08-01	1139.5	1128	1200	1200
2024-07-01	1139.5	1128	1200	1200
2024-06-01	1139.5	1128	1200	1200
2024-08-01	1139.5	1128	1200	1200
2024-04-01	1139.5	1128	1200	1200
2024-03-01	1139.5	1128	1200	1200
2024-02-01	1139.5	1128	1200	1200
2024-01-01	1139.5	1128	1200	1200
2023-12-01	1139.5	1128	1200	1200
2023-11-01	1139.5	1128	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	West Rand Juniors 2023 (U12)	2023-03-18	2023-03-18	Standard	West Rand (GWR)	5	4	0.5	Yes	Analysis
2	WR Tournament and Coaching 2023 (U12)	2023-02-25	2023-02-25	Standard	West Rand (GWR)	5	5	2	Yes	Analysis
3	2023 West Rand Open (U10)	2023-02-04	2023-02-04	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2023 West Rand Open				Tournament 2023 West Rand Open
		date 2023-02-04	rnd 4	type Standard	result 0.5	date 2023-02-04	rnd 5	type Standard	result 0.5
		Opponent Coetzer, L (Logan)				Opponent Kamffer, J (John-Andrew)
2	2	Tournament 2023 West Rand Open				Tournament 2023 West Rand Open
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 2	type Standard	result 0.5
		Opponent Laubscher, D (Declan)				Opponent Geldenhuys, Z (Zian)
3	1	Tournament West Rand Juniors 2023				Tournament West Rand Juniors 2023
		date 2023-03-18	rnd 3	type Standard	result 0.5	date 2023-03-18	rnd 3	type Standard	result 0.5
		Opponent Kleynhans, J (Joshua)				Opponent Kleynhans, J (Joshua)

#	Games	Start				End
1	2	Tournament 2023 West Rand Open				Tournament 2023 West Rand Open
		date 2023-02-04	rnd 4	type Standard	result 0.5	date 2023-02-04	rnd 5	type Standard	result 0.5
		Opponent Coetzer, L (Logan)				Opponent Kamffer, J (John-Andrew)
2	2	Tournament 2023 West Rand Open				Tournament 2023 West Rand Open
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 2	type Standard	result 0.5
		Opponent Laubscher, D (Declan)				Opponent Geldenhuys, Z (Zian)
3	1	Tournament West Rand Juniors 2023				Tournament West Rand Juniors 2023
		date 2023-03-18	rnd 3	type Standard	result 0.5	date 2023-03-18	rnd 3	type Standard	result 0.5
		Opponent Kleynhans, J (Joshua)				Opponent Kleynhans, J (Joshua)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament WR Tournament and Coaching 2023				Tournament WR Tournament and Coaching 2023
		date 2023-02-25	rnd 5	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Willemse, H (Hans)				Opponent Willemse, H (Hans)
2	1	Tournament WR Tournament and Coaching 2023				Tournament WR Tournament and Coaching 2023
		date 2023-02-25	rnd 3	type Standard	result 1	date 2023-02-25	rnd 3	type Standard	result 1
		Opponent Du Toit, A (Abigail)				Opponent Du Toit, A (Abigail)
3	1	Tournament 2023 West Rand Open				Tournament 2023 West Rand Open
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 1	type Standard	result 1
		Opponent Laubscher, D (Declan)				Opponent Laubscher, D (Declan)

#	Games	Start				End
1	1	Tournament WR Tournament and Coaching 2023				Tournament WR Tournament and Coaching 2023
		date 2023-02-25	rnd 5	type Standard	result 1	date 2023-02-25	rnd 5	type Standard	result 1
		Opponent Willemse, H (Hans)				Opponent Willemse, H (Hans)
2	1	Tournament WR Tournament and Coaching 2023				Tournament WR Tournament and Coaching 2023
		date 2023-02-25	rnd 3	type Standard	result 1	date 2023-02-25	rnd 3	type Standard	result 1
		Opponent Du Toit, A (Abigail)				Opponent Du Toit, A (Abigail)
3	1	Tournament 2023 West Rand Open				Tournament 2023 West Rand Open
		date 2023-02-04	rnd 1	type Standard	result 1	date 2023-02-04	rnd 1	type Standard	result 1
		Opponent Laubscher, D (Declan)				Opponent Laubscher, D (Declan)

No games found.

#	Games	Start				End

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	Du Toit ,A (Abigail)	1	1	425	1	1	425	0	0	0	0	0	0
1	Du Toit ,A (Abigail)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Willemse ,H (Hans)	1	1	425	1	1	425	0	0	0	0	0	0
2	Willemse ,H (Hans)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Mosia ,L (Lebajwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Mosia ,L (Lebajwe)	1	1165.2	740.2	1	1163.2	740.2	0	0	0	0	0	0
4	Lokwe ,S (Simthandile)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Lokwe ,S (Simthandile)	1	1410.4	985.4	1	1413.6	985.4	0	0	0	0	0	0
5	Coetzer ,L (Logan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Coetzer ,L (Logan)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
6	Smith ,K (Kyle)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Smith ,K (Kyle)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Geldenhuys ,Z (Zian)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Geldenhuys ,Z (Zian)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
8	Kleynhans ,J (Joshua)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Kleynhans ,J (Joshua)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
9	Botha ,AZ (Adriaan Zander)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Botha ,AZ (Adriaan Zander)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Tsie ,T (Thapelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Tsie ,T (Thapelo)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Coetzer, K (Katherine)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms