Chess South Africa
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Chess South Africa
Mcosana, O (Oyama)
Dob:
2008/01/07 (U18)
Gender:
Female
Chess SA id:
2080154672
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2023/04/02 (412 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
1154.9
Curent Weighted rating
1160.7
Curent Weighted performance
985.7
Current official/published rating (highest between Raw, WR and WP)
1160.7
Current floor (min rating allowed)
704.5
Current highest rating achieved
1204.5
Current K-factor
36
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)
±176.8
Current Raw change used (final)
0.0
Projected new Raw rating
1154.9
Projected new Weighed rating
1159.7
Projected new Weighted performance
985.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1159.7
Projected effective change (new Official - current Official)
-1.0
Projected new highest rating
1204.5
Projected new floor
704.5
Projected new K-facor
36
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
1111.9
Curent Weighted rating
1122.2
Curent Weighted performance
784.4
Current official/published rating (highest between Raw, WR and WP)
1122.2
Current floor (min rating allowed)
700.0
Current highest rating achieved
1200.0
Current K-factor
36
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)
±188.0
Current Raw change used (final)
0.0
Projected new Raw rating
1111.9
Projected new Weighed rating
1120.3
Projected new Weighted performance
784.4
Projected new official/published rating (highest between new Raw, new WR and new WP)
1120.3
Projected effective change (new Official - current Official)
-1.9
Projected new highest rating
1200.0
Projected new floor
700.0
Projected new K-facor
36
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
1229.5
Curent Weighted rating
1226.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1229.5
Current floor (min rating allowed)
729.5
Current highest rating achieved
1229.5
Current K-factor
36
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)
±159.0
Current Raw change used (final)
0.0
Projected new Raw rating
1229.5
Projected new Weighed rating
1226.7
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1229.5
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1229.5
Projected new floor
729.5
Projected new K-facor
36
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
1200.0
Curent Weighted rating
1200.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1200.0
Current floor (min rating allowed)
729.5
Current highest rating achieved
1200.0
Current K-factor
36
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)
±165.8
Current Raw change used (final)
0.0
Projected new Raw rating
1200.0
Projected new Weighed rating
1200.0
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 rating
1200.0
Projected new floor
729.5
Projected new K-facor
36
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
12
Western Cape HS Individuals 2023 (U15 Girls)
2023/04/01
2023/04/02
Cape Town (WCT)
Standard
60
0.83
6
3
0.0
1197.0
1163.0
Analysis
11
Overberg High School Closed 2023 (U15 Girls)
2023/03/25
2023/03/25
Overberg (WOS)
Standard
60
0.83
5
5
2.0
1204.5
1169.1
Analysis
10
Overberg High Schools Trails 2023 (U15)
2023/02/24
2023/02/24
Overberg (WOS)
Rapid
15
0.39
5
5
3.0
1178.4
1200.0
Analysis
9
Overberg Schools Open Tournament 2023 (U16)
2023/02/11
2023/02/11
Overberg (WOS)
Rapid
20
0.47
5
5
3.0
1178.4
1200.0
Analysis
8
Western Cape Top Schools 2022 (U15 Mix)
2022/09/16
2022/09/17
Overberg (WOS)
Standard
60
0.83
5
5
2.0
1183.2
1172.0
Analysis
7
Overberg Closed 2020 (U13 Girls)
2020/03/15
2020/03/15
Overberg (WOS)
Standard
60
0.83
5
5
2.0
1187.1
1172.7
Analysis
6
2019 Western Cape Club Championship (C)
2019/10/25
2019/10/27
Overberg (WOS)
Standard
65
0.85
5
5
4.0
1136.3
1109.0
Analysis
5
Western Cape Top Schools 2019 (U11 Mix)
2019/08/31
2019/09/01
Cape Winelands (WCW)
Standard
60
0.83
5
4
0.0
1193.1
1187.5
Analysis
4
Overberg Top Schools 2019 (U11)
2019/07/20
2019/07/20
Overberg (WOS)
Standard
60
0.83
5
5
3.0
1179.4
1170.9
Analysis
3
Overberg First Trial 2019 (U12)
2019/02/23
2019/02/23
Overberg (WOS)
Standard
60
0.83
5
5
2.0
1199.7
1195.7
Analysis
2
Western Cape Top Schools 2018 (U9+U11 Girls)
2018/08/25
2018/08/26
Overberg (WOS)
Standard
60
0.83
5
5
4.0
1172.5
1166.9
Analysis
1
Overberg Schools Closed 2018 (U11 Girls)
2018/03/23
2018/03/24
Overberg (WOS)
Standard
60
0.83
6
6
3.0
1200.0
1200.0
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
63
31
0
32
31.0
49.2
-6.7
1179.8
1173.0
White
31
14
0
17
14.0
45.2
-41.1
1185.5
1144.4
Black
32
17
0
15
17.0
53.1
26.6
1174.1
1200.7
Standard
All
53
25
0
28
25.0
47.2
-24.1
1170.1
1146.0
White
27
14
0
13
14.0
51.9
15.7
1165.5
1181.2
Black
26
11
0
15
11.0
42.3
-65.4
1174.9
1109.5
Rapid
All
10
6
0
4
6.0
60.0
85.0
1230.9
1315.9
White
4
0
0
4
0.0
0.0
-425.0
1321.0
896.0
Black
6
6
0
0
6.0
100.0
425.0
1170.9
1595.9
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
208084103
Sibeko, M (Mbalntle)
3
0.0
0
0
3
0.0
1188.4
-425.0
763.4
View list
2
2090099929
Haman, B (Bionica)
2
2.0
2
0
0
100.0
1179.4
425.0
1604.4
View list
3
2070116642
Mushangera, T (Tadiwanashe)
2
2.0
2
0
0
100.0
1179.4
425.0
1604.4
View list
4
208068746
Snyders, M (Meya)
2
2.0
2
0
0
100.0
1179.4
425.0
1604.4
View list
5
2090102785
Beyers, D (Donna-Claire)
2
0.0
0
0
2
0.0
1179.4
-425.0
754.4
View list
6
208084107
Beveridge, TG (Talitha)
2
0.0
0
0
2
0.0
1200.8
-425.0
775.8
View list
7
207084105
Dondolo, A (Ayola)
2
0.0
0
0
2
0.0
1179.4
-425.0
754.4
View list
8
207084106
Hlanzela, M (Milani)
2
0.0
0
0
2
0.0
1193.5
-425.0
768.5
View list
9
208091547
Hendricks, J (Jacquin)
1
1.0
1
0
0
100.0
1136.3
425.0
1561.3
View list
10
1080152205
Booysen, W (Will-Matthew)
1
1.0
1
0
0
100.0
1178.4
425.0
1603.4
View list
11
107092948
Adams, A (Ashley)
1
1.0
1
0
0
100.0
1183.2
425.0
1608.2
View list
12
207088935
Dees, J (Jody)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
13
2080133325
Fredericks, K (Keshia)
1
1.0
1
0
0
100.0
1187.1
425.0
1612.1
View list
14
2070105985
Fransies, H (Hanlie)
1
1.0
1
0
0
100.0
1172.5
425.0
1597.5
View list
15
2090097172
Erasmus, A (Anneke)
1
1.0
1
0
0
100.0
1172.5
425.0
1597.5
View list
16
2080138409
Duminy, Z (Zaldine)
1
1.0
1
0
0
100.0
1178.4
425.0
1603.4
View list
17
2090152208
Du Toit, I (Isabella)
1
1.0
1
0
0
100.0
1204.5
425.0
1629.5
View list
18
1090100607
Du Plessis, L (Luc)
1
1.0
1
0
0
100.0
1199.7
425.0
1624.7
View list
19
2080099833
Johnson, T (Thandi)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list
20
208094918
Mdlokovane, S (Sphendulwe)
1
1.0
1
0
0
100.0
1200.0
425.0
1625.0
View list