Player Page

Jacobs, S (Sumayah)
Dob: 2009/08/20 (U16)
Gender: Female
Chess SA id: 2090096154
FIDE id:
Region: Cape Town (WCT)
Citizen: RSA
Title(s):
Last active: 2023/03/04 (428 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
Curent Raw rating1290.8
Curent Weighted rating1282.1
Curent Weighted performance1105.1
Current official/published rating (highest between Raw, WR and WP)1290.8
Current floor (min rating allowed)790.8
Current highest rating achieved1290.8
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)±145.7
Current Raw change used (final)0.0
Projected new Raw rating1290.8
Projected new Weighed rating1284.0
Projected new Weighted performance1105.1
Projected new official/published rating (highest between new Raw, new WR and new WP)1290.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1290.8
Projected new floor790.8
Projected new K-facor36
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
Curent Raw rating1287.3
Curent Weighted rating1276.6
Curent Weighted performance1015.6
Current official/published rating (highest between Raw, WR and WP)1287.3
Current floor (min rating allowed)787.3
Current highest rating achieved1287.3
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)±146.4
Current Raw change used (final)0.0
Projected new Raw rating1287.3
Projected new Weighed rating1278.8
Projected new Weighted performance1015.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1287.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1287.3
Projected new floor787.3
Projected new K-facor36
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
Curent Raw rating1248.4
Curent Weighted rating1247.7
Curent Weighted performance809.8
Current official/published rating (highest between Raw, WR and WP)1248.4
Current floor (min rating allowed)748.4
Current highest rating achieved1248.4
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)±154.8
Current Raw change used (final)0.0
Projected new Raw rating1248.4
Projected new Weighed rating1248.0
Projected new Weighted performance809.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1248.4
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1248.4
Projected new floor748.4
Projected new K-facor36
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
Curent Raw rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)748.4
Current highest rating achieved1200.0
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 rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor748.4
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
15 Cape Town Metro Schools Chess Closed Individuals 2023 (U15 Girls) 2023/02/03 2023/03/04 Cape Town (WCT) Standard 60 0.83 6 5 4.0 1249.9 1235.5 Analysis
14 Central District School Trials 2023 (U15 Girls) 2023/02/03 2023/02/04 Cape Town (WCT) Standard 60 0.83 6 6 4.0 1232.3 1210.7 Analysis
13 Metro Rapid 2022 (U13 Girls) 2022/10/22 2022/10/22 Cape Town (WCT) Rapid 30 0.60 5 5 3.0 1219.6 1227.2 Analysis
12 Metro WP Schools Chess Trials 2022 (U13 Girls) 2022/04/22 2022/04/23 Cape Town (WCT) Standard 60 0.83 6 6 3.0 1221.1 1213.2 Analysis
11 2022 Central District Individual Trials (U13) 2022/03/05 2022/03/05 Cape Town (WCT) Rapid 30 0.60 5 5 3.5 1198.5 1184.8 Analysis
10 2020 Metro Trials (U11 Girls) 2020/03/13 2020/03/14 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1171.6 1188.0 Analysis
9 2020 Central District (U11) 2020/02/07 2020/02/08 Cape Town (WCT) Standard 60 0.83 6 5 3.0 1156.7 1176.4 Analysis
8 3rd ACL Chess Festival 2019 (U10) 2019/09/05 2019/09/05 Cape Town (WCT) Rapid 25 0.54 6 6 3.5 1128.0 1130.4 Analysis
7 Welgemoed Chess Challenge 2019 (U10) 2019/02/23 2019/02/23 Cape Town (WCT) Rapid 30 0.60 5 5 2.5 1120.6 1113.6 Analysis
6 2019 Central District Schools Trials (U11) 2019/02/01 2019/02/02 Cape Town (WCT) Standard 60 0.83 6 0 0.0 1120.6 1176.4 Analysis
5 Jakes Gerwel Aurecon 2018 (C) 2018/10/13 2018/10/13 Cape Town (WCT) Rapid 25 0.54 7 7 1.0 1171.4 1200.0 Analysis
4 Stellenberg Youth Chess Champs 2018 (E) 2018/06/23 2018/06/23 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1152.5 1147.6 Analysis
3 Western Cape Schools Individuals 2018 (U9 Girls) 2018/05/19 2018/05/20 Overberg (WOS) Standard 60 0.83 6 6 3.0 1163.1 1156.0 Analysis
2 2018 WP Schools Closed Trials (U9 Girls) 2018/03/09 2018/03/10 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1146.5 1135.6 Analysis
1 2018 Central District Trials (U9) 2018/02/02 2018/02/03 Cape Town (WCT) Standard 60 0.83 5 5 2.0 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 76 40 3 33 41.5 54.6 39.1 1178.2 1217.3
White 39 17 1 21 17.5 44.9 -43.6 1180.8 1137.2
Black 37 23 2 12 24.0 64.9 126.4 1175.5 1301.8
Standard All 48 28 0 20 28.0 58.3 70.8 1158.2 1229.0
White 23 10 0 13 10.0 43.5 -55.4 1166.5 1111.0
Black 25 18 0 7 18.0 72.0 187.0 1150.6 1337.6
Rapid All 28 12 3 13 13.5 48.2 -15.2 1212.5 1197.3
White 16 7 1 8 7.5 46.9 -26.6 1201.4 1174.8
Black 12 5 2 5 6.0 50.0 0.0 1227.3 1227.3
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 209095311 Grove, E (Emily) 3 1.0 1 0 2 33.3 1179.7 -141.7 1038.0 View list
2 2080150608 Moyo, T (Tsulufelo) 2 2.0 2 0 0 100.0 1241.1 425.0 1666.1 View list
3 2090108395 Mqadi, O (Olethiwe) 2 2.0 2 0 0 100.0 1201.9 425.0 1626.9 View list
4 2090097016 Siebert, E (Emily) 2 2.0 2 0 0 100.0 1154.8 425.0 1579.8 View list
5 209093030 Pretorius, A (Amanda Karen) 2 0.0 0 0 2 0.0 1183.8 -425.0 758.8 View list
6 210092081 Van Heerden, H (Hannah Rose) 2 0.0 0 0 2 0.0 1167.3 -425.0 742.3 View list
7 1090096156 Johnson, T (Tyler) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 1070105920 Jam-Jam, I (Inganathi) 1 1.0 1 0 0 100.0 1171.4 425.0 1596.4 View list
9 1100132100 Clementson, T (Tyler) 1 1.0 1 0 0 100.0 1152.5 425.0 1577.5 View list
10 210089562 Bester, M (Milla) 1 1.0 1 0 0 100.0 1163.1 425.0 1588.1 View list
11 2080114986 Dreyer, M (Morgan) 1 1.0 1 0 0 100.0 1232.3 425.0 1657.3 View list
12 2100147499 Dliwani, Y (Yoliswa) 1 1.0 1 0 0 100.0 1219.6 425.0 1644.6 View list
13 2100130921 Forbes, Z (Zoe) 1 1.0 1 0 0 100.0 1156.7 425.0 1581.7 View list
14 1100103578 Joshua, M (Madden) 1 1.0 1 0 0 100.0 1152.5 425.0 1577.5 View list
15 2100147504 Kisingo, M (Maya) 1 1.0 1 0 0 100.0 1219.6 425.0 1644.6 View list
16 2090146809 Kondlo, H (Hlomla) 1 1.0 1 0 0 100.0 1249.9 425.0 1674.9 View list
17 2080130602 Koti, Z (Zinathi) 1 1.0 1 0 0 100.0 1249.9 425.0 1674.9 View list
18 210090627 Leonard, C (Chloe) 1 1.0 1 0 0 100.0 1146.5 425.0 1571.5 View list
19 1090130926 Lodewyk, S (Salih) 1 1.0 1 0 0 100.0 1198.5 425.0 1623.5 View list
20 210087345 Lombard, Z (Zia) 1 1.0 1 0 0 100.0 1120.6 425.0 1545.6 View list