Chess South Africa Ratings Database

PLAYER PAGE

Personal

Dreyer, M (Maria Margaretha (Aretha))

Chess SA id

2120112736

FIDE id

Date of birth

2012-09-14 (U14)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-08-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1153.5	1157.5	1200	1200
Raw rating	1153.5	1157.5	1200	1200
Weighted rating	1153.3	1157.2	1200	1200
Weighted performance	791.6	791	0	0
Floor	714.9	718	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	177.2	176.2	165.8	165.8
Highest rating	1286.6 2019-02-01	1285.9 2019-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1214.9 2019-03-01	1218 2019-03-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1214.9 2019-04-01	1218 2019-04-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1286.6 2019-02-01	1285.9 2019-02-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1153.5	1157.5	1200	1200
Analysis
Rating	1153.5	1157.5	1200	1200
Raw rating	1153.5	1157.5	1200	1200
Weighted rating	1153.3	1157.2	1200
Weighted performance	791.6	791	0
K-factor	36	36	36	36
Floor	714.9	718	700	700
Max/Min rating change allowed	177.2	176.2	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	1153.5	1157.5	1200	1200
New weighted rating	1153.3	1157.2	1200	1200
New weighted performance	784.5	783.9	0	0
Temp new rating	1153.5	1157.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1153.5	1157.5	1200	1200
New K-factor	36	36	36	36
New floor	714.9	718	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	12	12
	15	15
	10	10
History	80	80

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U14
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	80	36.5	45.63	-37.2	1165.8	1128.6
Standard	80	36.5	45.63	-37.2	1165.8	1128.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1153.5	1157.5	1200	1200
2025-09-30	1153.5	1157.5	1200	1200
2025-09-01	1153.5	1157.5	1200	1200
2025-08-01	1153.5	1157.5	1200	1200
2025-07-01	1153.5	1157.5	1200	1200
2025-06-01	1153.5	1157.5	1200	1200
2025-05-01	1153.5	1157.5	1200	1200
2025-04-01	1153.5	1157.5	1200	1200
2025-03-01	1153.5	1157.5	1200	1200
2025-02-01	1153.4	1157.3	1200	1200
2025-01-01	1152.9	1156.7	1200	1200
2024-12-01	1152.9	1156.7	1200	1200
2024-11-01	1152.9	1156.7	1200	1200
2024-10-01	1152.9	1156.7	1200	1200
2024-09-01	1152.9	1156.7	1200	1200
2024-08-01	1152.9	1156.7	1200	1200
2024-07-01	1152.9	1156.7	1200	1200
2024-09-01	1152.9	1156.7	1200	1200
2024-05-01	1152.9	1156.7	1200	1200
2024-04-01	1152.9	1156.7	1200	1200
2024-03-01	1152.9	1156.7	1200	1200
2024-02-01	1152.9	1156.7	1200	1200
2024-01-01	1152.9	1156.7	1200	1200
2023-12-01	1152.9	1156.7	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	2023 Tshwane North School District CLOSED League Championships (D3)	2023-08-12	2023-08-12	Standard	Tshwane (GTP)	3	2	0	Yes	Analysis
2	2023 Tshwane North School District CLOSED Individual Championships (D3)	2023-05-13	2023-05-13	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	Gauteng Schools Individual Finals 2023 (U11 Girls)	2023-05-26	2023-05-26	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
4	2022 Gauteng Schools Team Championships (U11 Open)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
5	2022 D3 Cluster City Schools (U11)	2022-04-23	2022-04-23	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
6	CP Ope 2022 (D1)	2022-02-19	2022-02-19	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	2021 Lardies Ope (E)	2021-10-30	2021-10-30	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
8	2021 D3 Individual (U13 Girls)	2021-10-13	2021-10-13	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
9	2019 South African Junior Team Championships (U8B+U8Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	3	Yes	Analysis
10	2019 TC SAJCC Prep Tournament (C)	2019-11-30	2019-11-30	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
11	2019 Etienne Lewis Trials (U8 Girls)	2019-08-30	2019-09-01	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
12	2019 Swartkop Open (F)	2019-06-15	2019-06-15	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
13	Wonderboom Interhuis 2019 (U9)	2019-05-04	2019-05-22	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
14	2019 D3 Individuals (U9 Girls)	2019-04-13	2019-04-13	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
15	2019 Capablanca Chess Festival (Swiss F)	2019-04-19	2019-04-19	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
16	2019 Constantia Park Open (F)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2019 TC SAJCC Prep Tournament				Tournament 2019 South African Junior Team Championships
		date 2019-11-30	rnd 5	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Doyle, U (Uisce)				Opponent Smith, E (Euan)
2	3	Tournament 2019 Swartkop Open				Tournament 2019 Swartkop Open
		date 2019-06-15	rnd 1	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Erasmus, KA (Kean Andre)				Opponent Doyle, U (Uisce)
3	3	Tournament 2019 Capablanca Chess Festival				Tournament Wonderboom Interhuis 2019
		date 2019-04-19	rnd 5	type Standard	result 1	date 2019-05-04	rnd 2	type Standard	result 1
		Opponent Noeth, C (Curtis)				Opponent Meyer, E (Ewald)

#	Games	Start				End
1	3	Tournament 2019 TC SAJCC Prep Tournament				Tournament 2019 South African Junior Team Championships
		date 2019-11-30	rnd 5	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Doyle, U (Uisce)				Opponent Smith, E (Euan)
2	3	Tournament 2019 Swartkop Open				Tournament 2019 Swartkop Open
		date 2019-06-15	rnd 1	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Erasmus, KA (Kean Andre)				Opponent Doyle, U (Uisce)
3	3	Tournament 2019 Capablanca Chess Festival				Tournament Wonderboom Interhuis 2019
		date 2019-04-19	rnd 5	type Standard	result 1	date 2019-05-04	rnd 2	type Standard	result 1
		Opponent Noeth, C (Curtis)				Opponent Meyer, E (Ewald)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2019 TC SAJCC Prep Tournament				Tournament 2019 South African Junior Team Championships
		date 2019-11-30	rnd 5	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Doyle, U (Uisce)				Opponent Smith, E (Euan)
2	3	Tournament 2019 Swartkop Open				Tournament 2019 Swartkop Open
		date 2019-06-15	rnd 1	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Erasmus, KA (Kean Andre)				Opponent Doyle, U (Uisce)
3	3	Tournament 2019 Capablanca Chess Festival				Tournament Wonderboom Interhuis 2019
		date 2019-04-19	rnd 5	type Standard	result 1	date 2019-05-04	rnd 2	type Standard	result 1
		Opponent Noeth, C (Curtis)				Opponent Meyer, E (Ewald)

#	Games	Start				End
1	3	Tournament 2019 TC SAJCC Prep Tournament				Tournament 2019 South African Junior Team Championships
		date 2019-11-30	rnd 5	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Doyle, U (Uisce)				Opponent Smith, E (Euan)
2	3	Tournament 2019 Swartkop Open				Tournament 2019 Swartkop Open
		date 2019-06-15	rnd 1	type Standard	result 1	date 2019-06-15	rnd 3	type Standard	result 1
		Opponent Erasmus, KA (Kean Andre)				Opponent Doyle, U (Uisce)
3	3	Tournament 2019 Capablanca Chess Festival				Tournament Wonderboom Interhuis 2019
		date 2019-04-19	rnd 5	type Standard	result 1	date 2019-05-04	rnd 2	type Standard	result 1
		Opponent Noeth, C (Curtis)				Opponent Meyer, E (Ewald)

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	Doyle ,U (Uisce)	3	3	425	3	3	425	0	0	0	0	0	0
1	Doyle ,U (Uisce)	3	1016.9	1441.9	3	1020.9	1441.9	0	0	0	0	0	0
2	Jansen Van Vuuren ,G (Gianni)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
2	Jansen Van Vuuren ,G (Gianni)	3	1192.4	1192.4	3	1188	1192.4	0	0	0	0	0	0
3	Theron ,C (Carla)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Theron ,C (Carla)	2	1202.3	777.3	2	1202.7	777.3	0	0	0	0	0	0
4	Prinsloo ,V (Veronique)	2	1	0	2	1	0	0	0	0	0	0	0
4	Prinsloo ,V (Veronique)	2	1145.3	1145.3	2	1139.7	1145.3	0	0	0	0	0	0
5	Ferreira ,A (Adriani)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Ferreira ,A (Adriani)	2	878.9	453.9	2	887.9	453.9	0	0	0	0	0	0
6	Erasmus ,KA (Kean Andre)	2	1	0	2	1	0	0	0	0	0	0	0
6	Erasmus ,KA (Kean Andre)	2	1116.8	1116.8	2	1107.6	1116.8	0	0	0	0	0	0
7	De Swardt ,M (Mieke)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	De Swardt ,M (Mieke)	2	1262.9	1475.4	2	1263	1475.4	0	0	0	0	0	0
8	Gruenenfelder ,E (Ellie)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Gruenenfelder ,E (Ellie)	2	1118.9	906.4	2	1109.6	906.4	0	0	0	0	0	0
9	Karsten ,CB (Chay Belle)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Karsten ,CB (Chay Belle)	1	1145.6	720.6	1	1137.8	720.6	0	0	0	0	0	0
10	Coetzee ,M (Mauritz)	1	1	425	1	1	425	0	0	0	0	0	0
10	Coetzee ,M (Mauritz)	1	1200	1625	1	1200	1625	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

Dreyer, M (Maria Margaretha (Aretha))

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms