Player Page

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
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 rating1152.9
Current Weighted rating1152.8
Current Weighted performance875.8
Current official/published rating (highest between Raw, WR and WP)1152.9
Current highest rating achieved1214.9
Current floor (min rating allowed)714.9
Current K-factor36
Games played this month0
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 rating1152.9
Projected new Weighed rating1060.9
Projected new Weighted performance875.8
Projected new final Raw rating (if new WP > new Raw)1152.9
Projected new highest rating1214.9
Projected new floor714.9
Projected new K-facor36
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 rating1156.7
Current Weighted rating1156.6
Current Weighted performance875.8
Current official/published rating (highest between Raw, WR and WP)1156.7
Current highest rating achieved1218.0
Current floor (min rating allowed)718.0
Current K-factor36
Games played this month0
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 rating1156.7
Projected new Weighed rating1064.5
Projected new Weighted performance875.8
Projected new final Raw rating (if new WP > new Raw)1156.7
Projected new highest rating1218.0
Projected new floor718.0
Projected new K-facor36
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
s
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
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 rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
Current K-factor36
Games played this month0
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 rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
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
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
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
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 idNameGamesScoreWinsDrawsLosses%AorDpPerformView
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