Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koen, SM (Susan Maria)

Chess SA id

203060624

FIDE id

Date of birth

2003-03-11 (Adult)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-08-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1042.1	1039.7	780.2	780.2
Raw rating	1042.1	1039.7	780.2	780.2
Weighted rating	1042.1	1039.7	780.2	780.2
Weighted performance	229.4	228.8	0	0
Floor	542.1	539.7	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	207.6	208.4	301.6	301.6
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1042.1 2024-02-01	1039.7 2024-02-01	780.2 2024-02-01	780.2 2024-02-01
Highest weighted rating	1042.1 2024-11-01	1039.7 2024-11-01	780.2 2024-11-01	780.2 2024-11-01
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	1042.1	1039.7	780.2	780.2
Analysis
Rating	1042.1	1039.7	780.2	780.2
Raw rating	1042.1	1039.7	780.2	780.2
Weighted rating	1042.1	1039.7	780.2
Weighted performance	229.4	228.8	0
K-factor	40	40	40	40
Floor	542.1	539.7	500	500
Max/Min rating change allowed	207.6	208.4	301.6	301.6
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	1042.1	1039.7	780.2	780.2
New weighted rating	1042.1	1039.7	780.2	780.2
New weighted performance	229.1	228.5	0	0
Temp new rating	1042.1	1039.7	780.2	780.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1042.1	1039.7	780.2	780.2
New K-factor	40	40	40	40
New floor	542.1	539.7	500	500

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	321	321

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	59	28.5	48.31	-14.4	924.7	910.2
Standard	59	28.5	48.31	-14.4	924.7	910.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1042.1	1039.7	780.2	780.2
2025-09-01	1042.1	1039.7	780.2	780.2
2025-08-01	1042.1	1039.7	780.2	780.2
2025-07-01	1042.1	1039.7	780.2	780.2
2025-06-01	1042.1	1039.7	780.2	780.2
2025-05-01	1042.1	1039.7	780.2	780.2
2025-04-01	1042.1	1039.7	780.2	780.2
2025-03-01	1042.1	1039.7	780.2	780.2
2025-02-01	1042.1	1039.7	780.2	780.2
2025-01-01	1042.1	1039.7	780.2	780.2
2024-12-01	1042.1	1039.7	780.2	780.2
2024-11-01	1042.1	1039.7	780.2	780.2
2024-10-01	1042.1	1039.7	780.2	780.2
2024-09-01	1042.1	1039.7	780.2	780.2
2024-08-01	1042.1	1039.7	780.2	780.2
2024-07-01	1042.1	1039.7	780.2	780.2
2024-06-01	1042.1	1039.7	780.2	780.2
2024-08-01	1042.1	1039.7	780.2	780.2
2024-04-01	1042.1	1039.7	780.2	780.2
2024-03-01	1042.1	1039.7	780.2	780.2
2024-02-01	1042.1	1039.7	780.2	780.2
2024-01-01	1042.1	1039.7	780.2	780.2
2023-12-01	1042.1	1039.7	780.2	780.2
2023-11-01	1042.1	1039.7	780.2	780.2

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	2019 Gauteng School League Finals (U19 Girls)	2019-08-24	2019-08-24	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2019 D15 Tshwane West Schools League Final (Secondary Schools)	2019-08-17	2019-08-17	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
3	2019 Gauteng Secondary Schools Individual Chess Championships (U18 Girls)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
4	2019 D15 Individual Finals (U18 Girls)	2019-05-11	2019-05-11	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
5	2018 Gauteng Secondary Schools Individual Chess Championships (U15 Girls)	2018-05-26	2018-05-26	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
6	Hervormde Kerk 2018 (U18)	2018-04-21	2018-04-21	Standard	Dr Kenneth Kaunda (NWP)	5	4	2.5	Yes	Analysis
7	2018 D15 Tshwane West Schools League Finals (U15 Girls)	2018-03-17	2018-03-17	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
8	JNW Club - Trinityhouse Randpark Ridge Open 2018 (C)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
9	2018 Constantia Park Open (D)	2018-02-10	2018-02-10	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
10	2018 Blou Bul Open (D)	2018-02-17	2018-02-17	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
11	2018 Tshwane Registration Open Chess Tournament (D)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
12	South African Junior Team Championships 2017 (U16-U20 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2018 Blou Bul Open				Tournament 2018 D15 Tshwane West Schools League Finals
		date 2018-02-17	rnd 5	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Smit, M (Mia)				Opponent Selekiso, T (Tlamlo)
2	3	Tournament 2019 D15 Individual Finals				Tournament 2019 D15 Individual Finals
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Nkosi, M (Molebogeng)				Opponent Dlamini, N (Nompumelelo)
3	3	Tournament Hervormde Kerk 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-04-18	rnd 4	type Standard	result 1	date 2018-05-26	rnd 1	type Standard	result 1
		Opponent Brink, HM (Hartogh)				Opponent Dladla, S (Sphesihle)

#	Games	Start				End
1	4	Tournament 2018 Blou Bul Open				Tournament 2018 D15 Tshwane West Schools League Finals
		date 2018-02-17	rnd 5	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Smit, M (Mia)				Opponent Selekiso, T (Tlamlo)
2	3	Tournament 2019 D15 Individual Finals				Tournament 2019 D15 Individual Finals
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Nkosi, M (Molebogeng)				Opponent Dlamini, N (Nompumelelo)
3	3	Tournament Hervormde Kerk 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-04-18	rnd 4	type Standard	result 1	date 2018-05-26	rnd 1	type Standard	result 1
		Opponent Brink, HM (Hartogh)				Opponent Dladla, S (Sphesihle)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament 2018 Blou Bul Open				Tournament 2018 D15 Tshwane West Schools League Finals
		date 2018-02-17	rnd 5	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Smit, M (Mia)				Opponent Selekiso, T (Tlamlo)
2	3	Tournament 2019 D15 Individual Finals				Tournament 2019 D15 Individual Finals
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Nkosi, M (Molebogeng)				Opponent Dlamini, N (Nompumelelo)
3	3	Tournament Hervormde Kerk 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-04-18	rnd 4	type Standard	result 1	date 2018-05-26	rnd 1	type Standard	result 1
		Opponent Brink, HM (Hartogh)				Opponent Dladla, S (Sphesihle)

#	Games	Start				End
1	4	Tournament 2018 Blou Bul Open				Tournament 2018 D15 Tshwane West Schools League Finals
		date 2018-02-17	rnd 5	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Smit, M (Mia)				Opponent Selekiso, T (Tlamlo)
2	3	Tournament 2019 D15 Individual Finals				Tournament 2019 D15 Individual Finals
		date 2019-05-11	rnd 1	type Standard	result 1	date 2019-05-11	rnd 3	type Standard	result 1
		Opponent Nkosi, M (Molebogeng)				Opponent Dlamini, N (Nompumelelo)
3	3	Tournament Hervormde Kerk 2018				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-04-18	rnd 4	type Standard	result 1	date 2018-05-26	rnd 1	type Standard	result 1
		Opponent Brink, HM (Hartogh)				Opponent Dladla, S (Sphesihle)

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	Nonyana ,G (Gloria)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Nonyana ,G (Gloria)	2	927.2	502.2	2	942.4	502.2	0	0	0	0	0	0
2	Maubane ,B (Bontle)	2	1	0	2	1	0	0	0	0	0	0	0
2	Maubane ,B (Bontle)	2	1133.9	1133.9	2	1120.6	1133.9	0	0	0	0	0	0
3	Khoza ,C (Cathrine)	2	2	425	2	2	425	0	0	0	0	0	0
3	Khoza ,C (Cathrine)	2	591.5	1016.5	2	611.2	1016.5	0	0	0	0	0	0
4	Kuba ,L (Lebohang)	1	1	425	1	1	425	0	0	0	0	0	0
4	Kuba ,L (Lebohang)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Erlank ,BG (Brandon Graham)	1	1	425	1	1	425	0	0	0	0	0	0
5	Erlank ,BG (Brandon Graham)	1	566.4	991.4	1	566.4	991.4	0	0	0	0	0	0
6	Smit ,M (Mia)	1	1	425	1	1	425	0	0	0	0	0	0
6	Smit ,M (Mia)	1	1166.8	1591.8	1	1160	1591.8	0	0	0	0	0	0
7	Minnie ,A (Anthoney)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Minnie ,A (Anthoney)	1	1071.2	1071.2	1	1044.8	1071.2	0	0	0	0	0	0
8	Molefe ,K (Kgaugelo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Molefe ,K (Kgaugelo)	1	1149.8	724.8	1	1140.8	724.8	0	0	0	0	0	0
9	Brink ,HM (Hartogh)	1	1	425	1	1	425	0	0	0	0	0	0
9	Brink ,HM (Hartogh)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	April ,C (Conique)	1	1	425	1	1	425	0	0	0	0	0	0
10	April ,C (Conique)	1	704	1129	1	704	1129	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Koen, SM (Susan Maria)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms