Player Page

Ngubeni, BR (Boitumelo)
Dob: 2006/05/26 (U20)
Gender: Female
Chess SA id: 206072373
FIDE id:
Region: West Rand (GWR)
Citizen: RSA
Title(s):
Last active: 2023/08/19 (273 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 rating1391.1
Curent Weighted rating1345.5
Curent Weighted performance1257.6
Current official/published rating (highest between Raw, WR and WP)1391.1
Current floor (min rating allowed)914.5
Current highest rating achieved1414.5
Current K-factor32
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)±126.3
Current Raw change used (final)0.0
Projected new Raw rating1391.1
Projected new Weighed rating1353.2
Projected new Weighted performance1257.6
Projected new official/published rating (highest between new Raw, new WR and new WP)1391.1
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1414.5
Projected new floor914.5
Projected new K-facor32
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 rating1384.2
Curent Weighted rating1343.6
Curent Weighted performance1255.9
Current official/published rating (highest between Raw, WR and WP)1384.2
Current floor (min rating allowed)912.7
Current highest rating achieved1412.7
Current K-factor32
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)±127.5
Current Raw change used (final)0.0
Projected new Raw rating1384.2
Projected new Weighed rating1350.5
Projected new Weighted performance1255.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1384.2
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1412.7
Projected new floor912.7
Projected new K-facor32
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 rating809.6
Curent Weighted rating809.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)809.6
Current floor (min rating allowed)500.0
Current highest rating achieved809.6
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)±289.2
Current Raw change used (final)0.0
Projected new Raw rating809.6
Projected new Weighed rating809.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)809.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating809.6
Projected new floor500.0
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 rating809.6
Curent Weighted rating809.6
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)809.6
Current floor (min rating allowed)500.0
Current highest rating achieved809.6
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)±289.2
Current Raw change used (final)0.0
Projected new Raw rating809.6
Projected new Weighed rating809.6
Projected new Weighted performance
Projected new official/published rating (highest between new Raw, new WR and new WP)809.6
Projected effective change (new Official - current Official)=0.0
Projected new highest rating809.6
Projected new floor500.0
Projected new K-facor40
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
16 2023 Gauteng Top Schools (U19 Girls) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 5 2.0 1414.5 1412.7 Analysis
15 D2 School League Finals 2023 (U19 Girls) 2023/07/22 2023/07/22 West Rand (GWR) Standard 60 0.83 5 4 4.0 1324.5 1327.5 Analysis
14 Gauteng Schools Individual Finals 2023 (U18 Girls) 2023/05/27 2023/05/27 Ekurhuleni (GE) Standard 60 0.83 5 5 3.0 1208.9 1219.5 Analysis
13 D2 Schools Individuals 2023 (U18 Girls) 2023/05/13 2023/05/13 West Rand (GWR) Standard 60 0.83 5 5 4.0 1208.9 1219.5 Analysis
12 West Rand vs Bojanala 2022 (U18) 2022/11/05 2022/11/05 Bojanala Platina (NBR) Standard 60 0.83 5 5 2.0 1199.3 1210.9 Analysis
11 West Rand Trials 2022 (U18) 2022/09/03 2022/09/03 West Rand (GWR) Standard 60 0.83 5 5 2.0 1230.4 1252.7 Analysis
10 2022 Gauteng Schools Team Championships (U19 Girls) 2022/08/26 2022/08/26 Tshwane (GTP) Standard 60 0.83 5 5 4.5 1115.2 1110.3 Analysis
9 D2 School League Finals 2022 (U18) 2022/08/20 2022/08/20 West Rand (GWR) Standard 60 0.83 5 5 3.0 1115.2 1110.3 Analysis
8 Khutsong Chess Club 2020 (B) 2020/03/07 2020/03/07 West Rand (GWR) Standard 60 0.83 5 5 2.0 1142.8 1142.3 Analysis
7 West Rand Junior Open 2019 (U14) 2019/08/17 2019/08/17 West Rand (GWR) Standard 60 0.83 5 5 3.5 925.4 947.2 Analysis
6 D2 League Finals 2019 (U13 Mix) 2019/08/03 2019/08/03 West Rand (GWR) Standard 60 0.83 7 6 4.0 925.4 947.2 Analysis
5 Merafong Schools Individuals 2019 (U13 Girls) 2019/05/04 2019/05/04 West Rand (GWR) Standard 60 0.83 5 5 2.5 865.0 876.8 Analysis
4 Khutsong Chess Club Freedom Day 2019 (B) 2019/04/27 2019/04/27 West Rand (GWR) Standard 60 0.83 5 4 1.0 894.9 913.6 Analysis
3 2018 Gauteng Secondary Schools Individual Chess Championships (U13 Girls) 2018/05/25 2018/05/25 Tshwane (GTP) Standard 60 0.83 5 5 2.0 809.6 809.6 Analysis
2 D2 Schools Individuals 2018 (U13 Girls) 2018/05/19 2018/05/19 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 809.6 809.6 Analysis
1 Merafong Schools Individuals 2018 (U13 Girls) 2018/05/05 2018/05/05 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 809.6 809.6 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 79 44 3 32 45.5 57.6 64.6 1144.2 1208.8
White 39 18 1 20 18.5 47.4 -21.8 1130.0 1108.2
Black 40 26 2 12 27.0 67.5 148.8 1158.1 1306.8
Standard All 79 44 3 32 45.5 57.6 64.6 1144.2 1208.8
White 39 18 1 20 18.5 47.4 -21.8 1130.0 1108.2
Black 40 26 2 12 27.0 67.5 148.8 1158.1 1306.8
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 206081702 Khutshwa, N (Ntombizikhona) 3 1.0 1 0 2 33.3 958.0 -141.7 816.3 View list
2 2070100937 Maseko, U (Unathi) 3 1.0 1 0 2 33.3 1072.2 -141.7 930.6 View list
3 2060112191 Marumole, V (Vuyokazi) 2 2.0 2 0 0 100.0 1034.1 425.0 1459.1 View list
4 206078654 Ngwenya, TF (Thato) 2 1.0 1 0 1 50.0 1175.8 0.0 1175.8 View list
5 205031170 Prinsloo, TE (Thiana) 2 1.0 1 0 1 50.0 962.4 0.0 962.4 View list
6 207067183 Msiwa, N (Nokuthula) 2 0.0 0 0 2 0.0 1208.9 -425.0 783.9 View list
7 206064938 Mvundla, T (Thandiswa) 2 0.0 0 0 2 0.0 809.6 -425.0 384.6 View list
8 206076220 Kruger, C (Carmi) 1 1.0 1 0 0 100.0 809.6 425.0 1234.6 View list
9 106091297 De Lange, GL (Gianni) 1 1.0 1 0 0 100.0 925.4 425.0 1350.4 View list
10 2060158467 Bothma, L (Leya) 1 1.0 1 0 0 100.0 1324.5 425.0 1749.5 View list
11 206081700 Bezu, R (Reabetswe) 1 1.0 1 0 0 100.0 1142.8 425.0 1567.8 View list
12 1050146383 Banda, B (Blessing) 1 1.0 1 0 0 100.0 1230.4 425.0 1655.4 View list
13 1050100946 Engelbrecht, D (Damion) 1 1.0 1 0 0 100.0 925.4 425.0 1350.4 View list
14 205051065 Dzimati, KN (Karen) 1 1.0 1 0 0 100.0 809.6 425.0 1234.6 View list
15 105053982 Du Toit, T (Tano) 1 1.0 1 0 0 100.0 1115.2 425.0 1540.2 View list
16 2070115594 Grahan, C (Chie-Ann) 1 1.0 1 0 0 100.0 1208.9 425.0 1633.9 View list
17 2060161174 Letuka, M (Mahadi) 1 1.0 1 0 0 100.0 1414.5 425.0 1839.5 View list
18 2060156366 Khanye, A (Atlehang) 1 1.0 1 0 0 100.0 1208.9 425.0 1633.9 View list
19 2070146086 Kgonthe, N (Neo Kabelo) 1 1.0 1 0 0 100.0 1115.2 425.0 1540.2 View list
20 1060117311 Joubert, J (Jean-Pierre) 1 1.0 1 0 0 100.0 925.4 425.0 1350.4 View list