Player Page

Williamson, S (Sarah)
Dob: 2009/03/30 (U16)
Gender: Female
Chess SA id: 2090108393
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2024/03/22 (125 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 rating1182.3
Current Weighted rating1189.3
Current Weighted performance1105.7
Current official/published rating (highest between Raw, WR and WP)1189.3
Current highest rating achieved1243.7
Current floor (min rating allowed)743.7
Current K-factor36
Games played this month-4
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)±170.1
Current Raw change used (final)0.0
Projected new Raw rating1182.3
Projected new Weighed rating1096.1
Projected new Weighted performance1105.7
Projected new final Raw rating (if new WP > new Raw)1182.3
Projected new highest rating1243.7
Projected new floor743.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1182.3
Projected effective change (new Official - current Official)-7.0
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 rating1162.0
Current Weighted rating1162.7
Current Weighted performance1105.7
Current official/published rating (highest between Raw, WR and WP)1162.7
Current highest rating achieved1225.2
Current floor (min rating allowed)725.2
Current K-factor36
Games played this month-4
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)±175.0
Current Raw change used (final)0.0
Projected new Raw rating1162.0
Projected new Weighed rating1072.3
Projected new Weighted performance1105.7
Projected new final Raw rating (if new WP > new Raw)1162.0
Projected new highest rating1225.2
Projected new floor725.2
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1162.0
Projected effective change (new Official - current Official)-0.7
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 rating1217.4
Current Weighted rating1217.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1217.4
Current highest rating achieved1217.4
Current floor (min rating allowed)717.4
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)±161.8
Current Raw change used (final)0.0
Projected new Raw rating1217.4
Projected new Weighed rating1120.0
Projected new Weighted performance732.9
Projected new final Raw rating (if new WP > new Raw)1217.4
Projected new highest rating1217.4
Projected new floor717.4
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1217.4
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.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
3 Western Cape HS Individuals Championship 2024 (U15 Girls) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 1.0 1222.8 1205.0 Analysis
2 Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Girls) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1222.8 1205.0 Analysis
1 CT Metro Central District Schools Chess Individuals Trials 2024 (U15 Girls) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 2.5 1243.7 1225.2 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
18 Western Cape HS Individuals Championship 2024 (U15 Girls) 2024/03/21 2024/03/22 Overberg (WOS) Standard 60 0.83 6 6 1.0 1222.8 1205.0 Analysis
17 Cape Town Metro Schools Chess Closed Individuals 2024 (U15 Girls) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1222.8 1205.0 Analysis
16 CT Metro Central District Schools Chess Individuals Trials 2024 (U15 Girls) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 2.5 1243.7 1225.2 Analysis
15 Western Cape Top Schools 2023 (U15 Girls) 2023/09/02 2023/09/03 Cape Winelands (WCW) Standard 60 0.83 5 5 4.5 1138.4 1105.2 Analysis
14 Western Cape HS Individuals 2023 (U15 Girls) 2023/04/01 2023/04/02 Cape Town (WCT) Standard 60 0.83 6 6 2.0 1139.1 1100.0 Analysis
13 Cape Town Metro Schools Chess Closed Individuals 2023 (U15 Girls) 2023/02/03 2023/03/04 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1120.8 1062.4 Analysis
12 Central District School Trials 2023 (U15 Girls) 2023/02/03 2023/02/04 Cape Town (WCT) Standard 60 0.83 6 5 2.5 1110.2 1039.2 Analysis
11 Metro Rapid 2022 (U13 Girls) 2022/10/22 2022/10/22 Cape Town (WCT) Rapid 30 0.60 5 5 3.0 1079.5 1201.2 Analysis
10 WP Closed 2022 (U14) 2022/06/16 2022/06/16 Cape Town (WCT) Standard 70 0.87 6 6 2.5 1068.0 1014.4 Analysis
9 Western Cape Schools 2022 (U13 Girls) 2022/05/28 2022/05/29 Cape Winelands (WCW) Standard 65 0.85 6 6 1.0 1095.5 1048.4 Analysis
8 Metro WP Schools Chess Trials 2022 (U13 Girls) 2022/04/22 2022/04/23 Cape Town (WCT) Standard 60 0.83 6 6 2.5 1086.5 1029.2 Analysis
7 2022 Central District Individual Trials (U13) 2022/03/05 2022/03/05 Cape Town (WCT) Rapid 30 0.60 5 5 3.0 1055.1 1174.8 Analysis
6 Laerskool Welgemoed 12th Annual Chess Challenge 2022 (U14) 2022/02/19 2022/02/19 Cape Town (WCT) Rapid 30 0.60 5 5 2.0 1042.1 1200.0 Analysis
5 2020 Cape Of Good Hope Open (Open) 2020/02/21 2020/02/23 Cape Town (WCT) Standard 70 0.87 6 6 1.0 1033.4 1001.6 Analysis
4 2020 Central District (U11) 2020/02/07 2020/02/08 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1033.4 1001.6 Analysis
3 Western Cape Top Schools 2019 (U13 Girls) 2019/08/31 2019/09/01 Cape Winelands (WCW) Standard 60 0.83 5 2 1.0 1024.4 992.0 Analysis
2 Metro School Chess Closed Individual Trials 2019 (U11 Girls) 2019/03/01 2019/03/02 Cape Town (WCT) Standard 60 0.83 6 5 0.0 1108.7 1088.0 Analysis
1 2019 Central District Schools Trials (U11) 2019/02/01 2019/02/02 Cape Town (WCT) Standard 60 0.83 6 5 0.5 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 17 5 3 9 6.5 38.2 -100.0 1233.2 1133.2
White 10 3 1 6 3.5 35.0 -127.5 1216.9 1089.4
Black 7 2 2 3 3.0 42.9 -60.7 1256.4 1195.6
Standard All 17 5 3 9 6.5 38.2 -100.0 1233.2 1133.2
White 10 3 1 6 3.5 35.0 -127.5 1216.9 1089.4
Black 7 2 2 3 3.0 42.9 -60.7 1256.4 1195.6
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 96 33 10 53 38.0 39.6 -88.5 1200.4 1111.8
White 48 18 4 26 20.0 41.7 -70.8 1209.0 1138.1
Black 48 15 6 27 18.0 37.5 -106.3 1191.8 1085.6
Standard All 81 26 8 47 30.0 37.0 -110.2 1199.1 1088.9
White 41 16 3 22 17.5 42.7 -62.2 1208.4 1146.2
Black 40 10 5 25 12.5 31.3 -159.4 1189.5 1030.1
Rapid All 15 7 2 6 8.0 53.3 28.3 1207.4 1235.8
White 7 2 1 4 2.5 35.7 -121.4 1212.0 1090.6
Black 8 5 1 2 5.5 68.8 159.4 1203.4 1362.8
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 2090108395 Mqadi, O (Olethiwe) 3 0.5 0 1 2 16.7 1146.3 -283.3 863.0 View list
2 2090108212 Phetheni, A (Axolisiwe) 3 0.5 0 1 2 16.7 1087.7 -283.3 804.4 View list
3 2100138514 Hastig, A (Amamkele) 2 2.0 2 0 0 100.0 1077.3 425.0 1502.3 View list
4 2090143653 Mokhele, Z (Zimi) 2 2.0 2 0 0 100.0 1161.6 425.0 1586.6 View list
5 2090146809 Kondlo, H (Hlomla) 2 1.0 1 0 1 50.0 1222.8 0.0 1222.8 View list
6 2090097162 Neethling, A (Ashrique) 2 0.5 0 1 1 25.0 1117.0 -212.5 904.5 View list
7 209095311 Grove, E (Emily) 2 0.0 0 0 2 0.0 1064.3 -425.0 639.3 View list
8 2100137375 Bellini, G (Gemma) 2 0.0 0 0 2 0.0 1073.8 -425.0 648.8 View list
9 2080096088 Hart-Davis, K (Katherine) 2 0.0 0 0 2 0.0 1155.1 -425.0 730.1 View list
10 2100134369 Orwin, J (Jennifer) 2 0.0 0 0 2 0.0 1154.7 -425.0 729.7 View list
11 2100153182 Cloete, T (Tashlynn) 1 1.0 1 0 0 100.0 1222.8 425.0 1647.8 View list
12 108087037 Cornelius, L (Luke Josh) 1 1.0 1 0 0 100.0 1033.4 425.0 1458.4 View list
13 1100141156 De Wet, C (Christo) 1 1.0 1 0 0 100.0 1068.0 425.0 1493.0 View list
14 2080146743 Ford, M (Misha) 1 1.0 1 0 0 100.0 1120.8 425.0 1545.8 View list
15 2090159252 Eybers, K (Kayla) 1 1.0 1 0 0 100.0 1138.4 425.0 1563.4 View list
16 2090134090 Dyantyi, E (Enathi) 1 1.0 1 0 0 100.0 1110.2 425.0 1535.2 View list
17 1090130923 Hendricks, M (Mogamat Basheer) 1 1.0 1 0 0 100.0 1033.4 425.0 1458.4 View list
18 2090193325 Jacobs, B (Bernice) 1 1.0 1 0 0 100.0 1243.7 425.0 1668.7 View list
19 2090130779 Jacobs, Z (Zee-Lynne) 1 1.0 1 0 0 100.0 1095.5 425.0 1520.5 View list
20 2090151279 Jeppe, G (Gracie-Rose) 1 1.0 1 0 0 100.0 1138.4 425.0 1563.4 View list