Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
Dreyer, M (Maria Margaretha (Aretha))
Dob:
2012/09/14 (U14)
Gender:
Female
Chess SA id:
2120112736
FIDE id:
Region:
Tshwane (GTP)
Citizen:
RSA
Title(s):
Last active:
2023/08/12 (488 days ago)
Ratings
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1152.9
Current Weighted rating
1152.8
Current Weighted performance
875.8
Current official/published rating (highest between Raw, WR and WP)
1152.9
Current highest rating achieved
1214.9
Current floor (min rating allowed)
714.9
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±177.3
Current Raw change used (final)
0.0
Projected new Raw rating
1152.9
Projected new Weighed rating
1060.9
Projected new Weighted performance
875.8
Projected new final Raw rating (if new WP > new Raw)
1152.9
Projected new highest rating
1214.9
Projected new floor
714.9
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1152.9
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1156.7
Current Weighted rating
1156.6
Current Weighted performance
875.8
Current official/published rating (highest between Raw, WR and WP)
1156.7
Current highest rating achieved
1218.0
Current floor (min rating allowed)
718.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±176.4
Current Raw change used (final)
0.0
Projected new Raw rating
1156.7
Projected new Weighed rating
1064.5
Projected new Weighted performance
875.8
Projected new final Raw rating (if new WP > new Raw)
1156.7
Projected new highest rating
1218.0
Projected new floor
718.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1156.7
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
s
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Raw rating
=Current rating,
Weighted rating (WR)
=Weighted average of current/new Raw rating + last 23 published Raw ratings),
Weighted performance (WP)
=Weighted average of last 5 tournaments
Current Raw rating
1200.0
Current Weighted rating
1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current highest rating achieved
1200.0
Current floor (min rating allowed)
700.0
Current K-factor
36
Games played this month
0
Score (S)
0.0
Expected score (We)
0.00
Difference (S-We)
0.00
Current Raw change (no limits, including tournament time weight)
0.0
Current min/max change allowed (with limits)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1200.0
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
16
2023 Tshwane North School District CLOSED League Championships (D3) (U13 Girls)
2023/08/12
2023/08/12
Tshwane (GTP)
Standard
60
0.83
3
2
0.0
1176.2
1185.5
Analysis
15
Gauteng Schools Individual Finals 2023 (U11 Girls)
2023/05/26
2023/05/26
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1107.5
1100.9
Analysis
14
2023 Tshwane North School District CLOSED Individual Championships (D3) (U11 Girls)
2023/05/13
2023/05/13
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1107.5
1100.9
Analysis
13
2022 Gauteng Schools Team Championships (U11 Open)
2022/08/27
2022/08/27
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1103.6
1093.0
Analysis
12
2022 D3 Cluster City Schools (U11)
2022/04/23
2022/04/23
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1119.1
1111.4
Analysis
11
CP Ope 2022 (D1)
2022/02/19
2022/02/19
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1128.4
1121.5
Analysis
10
2021 Lardies Ope (E)
2021/10/30
2021/10/30
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1120.6
1108.5
Analysis
9
2021 D3 Individual (U13 Girls)
2021/10/13
2021/10/13
Tshwane (GTP)
Standard
60
0.83
5
5
2.0
1120.6
1108.5
Analysis
8
2019 South African Junior Team Championships (U8B+U8Girls)
2020/01/04
2020/01/08
4 Knights (4K)
Standard
120
1.00
7
6
3.0
1117.7
1108.5
Analysis
7
2019 TC SAJCC Prep Tournament (C)
2019/11/30
2019/11/30
Tshwane (GTP)
Standard
60
0.83
5
4
1.0
1150.6
1149.2
Analysis
6
2019 Etienne Lewis Trials (U8 Girls)
2019/08/30
2019/09/01
Tshwane (GTP)
Standard
120
1.00
7
7
3.0
1183.7
1186.3
Analysis
5
2019 Swartkop Open (F)
2019/06/15
2019/06/15
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1133.2
1123.7
Analysis
4
Wonderboom Interhuis 2019 (U9)
2019/05/04
2019/05/22
Tshwane (GTP)
Standard
60
0.83
7
7
3.0
1144.3
1135.2
Analysis
3
2019 Capablanca Chess Festival (Swiss F)
2019/04/19
2019/04/19
Tshwane (GTP)
Standard
90
0.94
5
4
1.5
1214.9
1218.0
Analysis
2
2019 D3 Individuals (U9 Girls)
2019/04/13
2019/04/13
Tshwane (GTP)
Standard
60
0.83
5
5
1.5
1214.9
1218.0
Analysis
1
2019 Constantia Park Open (F)
2019/02/09
2019/02/09
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1200.0
1200.0
Analysis
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Standard
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
80
34
5
41
36.5
45.6
-37.2
1165.8
1128.6
White
39
19
2
18
20.0
51.3
10.9
1166.7
1177.6
Black
41
15
3
23
16.5
40.2
-82.9
1164.8
1081.9
Standard
All
80
34
5
41
36.5
45.6
-37.2
1165.8
1128.6
White
39
19
2
18
20.0
51.3
10.9
1166.7
1177.6
Black
41
15
3
23
16.5
40.2
-82.9
1164.8
1081.9
Rapid
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Blitz
All
0
0
0
0
0.0
0.0
0.0
0.0
0.0
White
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Black
0
0
0
0
0.0
0.0
0.0
0.0
0.0
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2120098615
Doyle, U (Uisce)
3
3.0
3
0
0
100.0
1155.8
425.0
1580.8
View list
2
1130108354
Jansen Van Vuuren, G (Gianni)
3
1.5
1
1
1
50.0
1161.3
0.0
1161.3
View list
3
2120108352
De Swardt, M (Mieke)
2
1.5
1
1
0
75.0
1199.3
212.5
1411.8
View list
4
1120116372
Erasmus, KA (Kean Andre)
2
1.0
1
0
1
50.0
1141.9
0.0
1141.9
View list
5
2140135150
Prinsloo, V (Veronique)
2
1.0
1
0
1
50.0
1114.0
0.0
1114.0
View list
6
2120109364
Gruenenfelder, E (Ellie)
2
0.5
0
1
1
25.0
1191.8
-212.5
979.3
View list
7
210072580
Ferreira, A (Adriani)
2
0.0
0
0
2
0.0
1179.6
-425.0
754.6
View list
8
2120109366
Theron, C (Carla)
2
0.0
0
0
2
0.0
1191.8
-425.0
766.8
View list
9
1120109368
Coetzee, M (Mauritz)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
10
2120115624
Coetzee, AC (Anje-Lika Clarissa)
1
1.0
1
0
0
100.0
1214.9
425.0
1639.9
View list
11
2080135149
Chauke, S (Suzan)
1
1.0
1
0
0
100.0
1120.6
425.0
1545.6
View list
12
1130133911
Butner, J (James)
1
1.0
1
0
0
100.0
1128.4
425.0
1553.4
View list
13
1130134041
Botha, L (Logan)
1
1.0
1
0
0
100.0
1128.4
425.0
1553.4
View list
14
1120108359
Bhudai, M (Milan)
1
1.0
1
0
0
100.0
1117.7
425.0
1542.7
View list
15
2120144500
Grunefelder, A (Aiya)
1
1.0
1
0
0
100.0
1103.6
425.0
1528.6
View list
16
2130155204
Gwala, N (Nasra)
1
1.0
1
0
0
100.0
1107.5
425.0
1532.5
View list
17
1130135729
Jansen Van Vuuren, R (Reuben)
1
1.0
1
0
0
100.0
1120.6
425.0
1545.6
View list
18
2110145760
Mantjie, A (Amor Amohelang)
1
1.0
1
0
0
100.0
1103.6
425.0
1528.6
View list
19
2120155942
Mashavha, G (Gomolemo)
1
1.0
1
0
0
100.0
1107.5
425.0
1532.5
View list
20
2120155943
Mashilo, M (Mercy)
1
1.0
1
0
0
100.0
1107.5
425.0
1532.5
View list