Player Page

Zanna, J (Jahkuska)
Dob: 2007/02/24 (U18)
Gender: Female
Chess SA id: 207086837
FIDE id:
Region: Capricorn (LCP)
Citizen: RSA
Title(s):
Last active: 2022/12/08 (526 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 rating1172.9
Curent Weighted rating1174.1
Curent Weighted performance725.8
Current official/published rating (highest between Raw, WR and WP)1174.1
Current floor (min rating allowed)744.2
Current highest rating achieved1244.2
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)±172.3
Current Raw change used (final)0.0
Projected new Raw rating1172.9
Projected new Weighed rating1173.7
Projected new Weighted performance725.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1173.7
Projected effective change (new Official - current Official)-0.3
Projected new highest rating1244.2
Projected new floor744.2
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 rating1144.7
Curent Weighted rating1145.5
Curent Weighted performance718.5
Current official/published rating (highest between Raw, WR and WP)1145.5
Current floor (min rating allowed)683.5
Current highest rating achieved1183.5
Current K-factor40
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)±179.4
Current Raw change used (final)0.0
Projected new Raw rating1144.7
Projected new Weighed rating1145.3
Projected new Weighted performance718.5
Projected new official/published rating (highest between new Raw, new WR and new WP)1145.3
Projected effective change (new Official - current Official)-0.2
Projected new highest rating1183.5
Projected new floor683.5
Projected new K-facor40
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 rating1170.8
Curent Weighted rating1170.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1170.8
Current floor (min rating allowed)670.8
Current highest rating achieved1170.8
Current K-factor40
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)±172.9
Current Raw change used (final)0.0
Projected new Raw rating1170.8
Projected new Weighed rating1170.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1170.8
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1170.8
Projected new floor670.8
Projected new K-facor40
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)670.8
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 floor670.8
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
15 2022 South African Junior Team Chess Championships (U16 Open) 2022/12/04 2022/12/08 4 Knights (4K) Standard 120 1.00 7 7 2.0 1189.8 1156.7 Analysis
14 LCP Qualifying October 2021 (O16) 2021/10/23 2021/10/23 Capricorn (LCP) Standard 60 0.83 5 5 2.0 1211.3 1183.5 Analysis
13 LCP Qualifying February 2020 (O14) 2020/02/15 2020/02/15 Capricorn (LCP) Standard 60 0.83 5 5 4.0 1178.4 1131.9 Analysis
12 2019 South African Junior Team Championships (U14A Girls) 2020/01/04 2020/01/08 4 Knights (4K) Standard 120 1.00 7 7 2.0 1220.9 1162.7 Analysis
11 Capricorn Qualifying July 2019 (O16) 2019/07/20 2019/07/20 Capricorn (LCP) Standard 60 0.83 5 5 2.0 1244.2 1177.9 Analysis
10 Capricorn Qualifying May 2019 (O14) 2019/05/18 2019/05/18 Capricorn (LCP) Standard 60 0.83 5 5 4.0 1084.1 1108.4 Analysis
9 2019 Super 12 Laerskole (Seniors) 2019/05/04 2019/05/04 Tshwane (GTP) Rapid 30 0.60 5 5 5.0 1084.1 1097.6 Analysis
8 Capricorn Qualifying March 2019 (U16) 2019/03/09 2019/03/09 Capricorn (LCP) Standard 60 0.83 5 5 3.5 1042.6 1059.6 Analysis
7 Capricorn Qualifying 2019 (O16) 2019/02/09 2019/02/09 Capricorn (LCP) Standard 60 0.83 5 5 2.5 1042.6 1062.8 Analysis
6 South African Junior Team Championships 2018 (U12D) 2018/12/16 2018/12/20 4 Knights (4K) Standard 120 1.00 7 7 3.0 1094.6 1132.0 Analysis
5 Capricorn Qualifying 02 June 2018 (U12) 2018/06/02 2018/06/02 Capricorn (LCP) Standard 60 0.83 5 5 4.0 1031.9 1068.0 Analysis
4 2018 Super 12 (Senior) 2018/05/05 2018/05/05 Tshwane (GTP) Rapid 30 0.60 5 5 2.0 1074.6 1200.0 Analysis
3 Capricorn Qualifying 10 Maart 2018 (U12) 2018/03/10 2018/03/10 Capricorn (LCP) Standard 60 0.83 5 5 4.0 1072.9 1063.2 Analysis
2 Capricorn Qualifying 10 Feb 2018 (U12) 2018/02/10 2018/02/10 Capricorn (LCP) Standard 60 0.83 5 5 3.0 1120.4 1120.4 Analysis
1 South African Junior Team Championships 2017 (U12C) 2018/01/04 2018/01/08 4 Knights (4K) Standard 120 1.00 7 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 81 45 2 34 46.0 56.8 57.7 1033.2 1090.9
White 44 25 2 17 26.0 59.1 77.3 1037.0 1114.3
Black 37 20 0 17 20.0 54.1 34.5 1028.6 1063.1
Standard All 71 38 2 31 39.0 54.9 41.9 1046.7 1088.6
White 39 21 2 16 22.0 56.4 54.5 1033.9 1088.4
Black 32 17 0 15 17.0 53.1 26.6 1062.3 1088.9
Rapid All 10 7 0 3 7.0 70.0 170.0 937.1 1107.1
White 5 4 0 1 4.0 80.0 255.0 1061.1 1316.1
Black 5 3 0 2 3.0 60.0 85.0 813.2 898.2
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 105064140 Leso, L (Lethabo) 2 0.5 0 1 1 25.0 1143.4 -212.5 930.9 View list
2 2070114700 Bezuidenhout, E (Enrika) 1 1.0 1 0 0 100.0 1084.1 425.0 1509.1 View list
3 208088068 Brits, R (Ronel) 1 1.0 1 0 0 100.0 1031.9 425.0 1456.9 View list
4 1070110028 Chidi, M (Masechaba) 1 1.0 1 0 0 100.0 1084.1 425.0 1509.1 View list
5 108084101 De Wet, R (Rossouw) 1 1.0 1 0 0 100.0 1094.6 425.0 1519.6 View list
6 1080116099 Leshabane, P (Phenyo) 1 1.0 1 0 0 100.0 1178.4 425.0 1603.4 View list
7 206090902 Lambert, M (Megan) 1 1.0 1 0 0 100.0 1084.1 425.0 1509.1 View list
8 206095188 Labase, B (Busisiwe) 1 1.0 1 0 0 100.0 1220.9 425.0 1645.9 View list
9 108089798 Joubert, M (Morne) 1 1.0 1 0 0 100.0 1031.9 425.0 1456.9 View list
10 107076073 Jonker, HD (Hendrik) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
11 108088646 Hawkins, J (Joshua) 1 1.0 1 0 0 100.0 1094.6 425.0 1519.6 View list
12 107086838 Ambe, J (Jose) 1 1.0 1 0 0 100.0 1120.4 425.0 1545.4 View list
13 2060098465 Fana, A (Awethu) 1 1.0 1 0 0 100.0 1220.9 425.0 1645.9 View list
14 1080101046 Lotter, B (Berno) 1 1.0 1 0 0 100.0 1084.1 425.0 1509.1 View list
15 206065699 Lubisi, M (Mamello) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
16 1060098377 Malefo, M (Moloko) 1 1.0 1 0 0 100.0 1084.1 425.0 1509.1 View list
17 1050096865 Maleka, K (Kgaugelo) 1 1.0 1 0 0 100.0 1042.6 425.0 1467.6 View list
18 2050109443 Mamathuntsha, LM (Loretta) 1 1.0 1 0 0 100.0 1042.6 425.0 1467.6 View list
19 107086823 Mampuru, TL (Thabiso) 1 1.0 1 0 0 100.0 1120.4 425.0 1545.4 View list
20 1060098376 Mashao, M (Mosa) 1 1.0 1 0 0 100.0 1084.1 425.0 1509.1 View list