Chess South Africa
Last updated:
Player Page
Home
Chess South Africa
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
The
Projected values
below are
NOT
the actual and official values as calculated by the Ratings Bureau.
Main
Standard
Rapid
Blitz
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 rating
1391.1
Curent Weighted rating
1345.5
Curent Weighted performance
1257.6
Current official/published rating (highest between Raw, WR and WP)
1391.1
Current floor (min rating allowed)
914.5
Current highest rating achieved
1414.5
Current K-factor
32
Games played this month
0
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 rating
1391.1
Projected new Weighed rating
1353.2
Projected new Weighted performance
1257.6
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 rating
1414.5
Projected new floor
914.5
Projected new K-facor
32
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 rating
1384.2
Curent Weighted rating
1343.6
Curent Weighted performance
1255.9
Current official/published rating (highest between Raw, WR and WP)
1384.2
Current floor (min rating allowed)
912.7
Current highest rating achieved
1412.7
Current K-factor
32
Games played this month
0
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 rating
1384.2
Projected new Weighed rating
1350.5
Projected new Weighted performance
1255.9
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 rating
1412.7
Projected new floor
912.7
Projected new K-facor
32
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 rating
809.6
Curent Weighted rating
809.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
809.6
Current floor (min rating allowed)
500.0
Current highest rating achieved
809.6
Current K-factor
40
Games played this month
0
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 rating
809.6
Projected new Weighed rating
809.6
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 rating
809.6
Projected new floor
500.0
Projected new K-facor
40
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 rating
809.6
Curent Weighted rating
809.6
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
809.6
Current floor (min rating allowed)
500.0
Current highest rating achieved
809.6
Current K-factor
40
Games played this month
0
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 rating
809.6
Projected new Weighed rating
809.6
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 rating
809.6
Projected new floor
500.0
Projected new K-facor
40
Tournaments
History
Did not participate this month.
Did not participate this year.
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
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
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
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