Chess South Africa
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Chess South Africa
Sihamba, S (Somila)
Dob:
2008/10/25 (U18)
Gender:
Female
Chess SA id:
208069933
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/08/03 (129 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
Current Raw rating
1289.7
Current Weighted rating
1294.1
Current Weighted performance
1202.7
Current official/published rating (highest between Raw, WR and WP)
1294.1
Current highest rating achieved
1403.7
Current floor (min rating allowed)
903.7
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)
±145.9
Current Raw change used (final)
0.0
Projected new Raw rating
1289.7
Projected new Weighed rating
1190.1
Projected new Weighted performance
1202.7
Projected new final Raw rating (if new WP > new Raw)
1289.7
Projected new highest rating
1403.7
Projected new floor
903.7
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1289.7
Projected effective change (new Official - current Official)
-4.4
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
Current Raw rating
1261.7
Current Weighted rating
1296.0
Current Weighted performance
1208.3
Current official/published rating (highest between Raw, WR and WP)
1296.0
Current highest rating achieved
1391.5
Current floor (min rating allowed)
891.5
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)
±151.9
Current Raw change used (final)
0.0
Projected new Raw rating
1261.7
Projected new Weighed rating
1191.8
Projected new Weighted performance
1208.3
Projected new final Raw rating (if new WP > new Raw)
1261.7
Projected new highest rating
1391.5
Projected new floor
891.5
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1261.7
Projected effective change (new Official - current Official)
-34.3
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
Current Raw rating
1199.3
Current Weighted rating
1174.2
Current Weighted performance
1119.7
Current official/published rating (highest between Raw, WR and WP)
1199.3
Current highest rating achieved
1199.3
Current floor (min rating allowed)
699.3
Current K-factor
40
s
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)
±166.0
Current Raw change used (final)
0.0
Projected new Raw rating
1199.3
Projected new Weighed rating
1082.9
Projected new Weighted performance
1119.7
Projected new final Raw rating (if new WP > new Raw)
1199.3
Projected new highest rating
1199.3
Projected new floor
699.3
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
1199.3
Projected effective change (new Official - current Official)
=0.0
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
Current Raw rating
661.2
Current Weighted rating
661.2
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)
661.2
Current highest rating achieved
661.2
Current floor (min rating allowed)
500.0
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)
±357.3
Current Raw change used (final)
0.0
Projected new Raw rating
661.2
Projected new Weighed rating
608.3
Projected new Weighted performance
29.6
Projected new final Raw rating (if new WP > new Raw)
661.2
Projected new highest rating
661.2
Projected new floor
500.0
Projected new K-facor
40
Projected new official/published rating (highest between new Raw, new WR and new WP)
661.2
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
8
CT League 2024 (D)
2024/08/03
2024/08/03
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1298.1
1279.7
Analysis
7
CT District North Top Schools 2024 (U18 Mixed)
2024/07/27
2024/07/27
Cape Town (WCT)
Rapid
30
0.60
5
4
2.5
1295.8
1183.3
Analysis
6
Cape Town Chess Federation Closed Chess Championships 2024 (U18)
2024/06/15
2024/06/16
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1322.0
1312.8
Analysis
5
Western Cape Inter Region Cup 2024 (U20 Girls)
2024/03/23
2024/03/24
Overberg (WOS)
Standard
90
0.94
5
5
3.5
1215.6
1236.1
Analysis
4
Western Cape HS Individuals Championship 2024 (U18 Girls)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
3.0
1215.6
1236.1
Analysis
3
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Girls)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1215.6
1236.1
Analysis
2
Cape of Good Hope Open Chess Tournament 2024 (Intermediate)
2024/02/17
2024/02/17
Cape Town (WCT)
Standard
70
0.87
6
6
1.5
1266.0
1329.3
Analysis
1
North District School Trials 2024 (U18 Girls)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
4
2.5
1266.0
1329.3
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
47
CT League 2024 (D)
2024/08/03
2024/08/03
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1298.1
1279.7
Analysis
46
CT District North Top Schools 2024 (U18 Mixed)
2024/07/27
2024/07/27
Cape Town (WCT)
Rapid
30
0.60
5
4
2.5
1295.8
1183.3
Analysis
45
Cape Town Chess Federation Closed Chess Championships 2024 (U18)
2024/06/15
2024/06/16
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1322.0
1312.8
Analysis
44
Western Cape Inter Region Cup 2024 (U20 Girls)
2024/03/23
2024/03/24
Overberg (WOS)
Standard
90
0.94
5
5
3.5
1215.6
1236.1
Analysis
43
Western Cape HS Individuals Championship 2024 (U18 Girls)
2024/03/21
2024/03/22
Overberg (WOS)
Standard
60
0.83
6
6
3.0
1215.6
1236.1
Analysis
42
Cape Town Metro Schools Chess Closed Individuals 2024 (U18 Girls)
2024/03/02
2024/03/03
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1215.6
1236.1
Analysis
41
Cape of Good Hope Open Chess Tournament 2024 (Intermediate)
2024/02/17
2024/02/17
Cape Town (WCT)
Standard
70
0.87
6
6
1.5
1266.0
1329.3
Analysis
40
North District School Trials 2024 (U18 Girls)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
4
2.5
1266.0
1329.3
Analysis
39
Western Cape Closed Championship 2023 (U16)
2023/09/23
2023/09/23
Cape Town (WCT)
Rapid
25
0.54
6
6
2.5
1366.4
1098.4
Analysis
38
WP Club League 2023 (D PlayOffs)
2023/09/02
2023/09/09
Cape Town (WCT)
Standard
70
0.87
5
2
0.0
1366.4
1363.7
Analysis
37
CW Top Schools 2023 (Intermediate)
2023/08/12
2023/08/12
West Coast (WCU)
Standard
60
0.83
5
5
4.0
1328.2
1311.5
Analysis
36
WP Club League 2023 (C)
2023/07/29
2023/09/09
Cape Town (WCT)
Standard
120
1.00
11
4
0.0
1366.4
1363.7
Analysis
35
CT Metro District North Top Schools Chess 2023 (U15 Mixed)
2023/07/29
2023/07/29
Cape Town (WCT)
Rapid
30
0.60
7
7
4.0
1338.0
1030.0
Analysis
34
WP Closed 2023 (U16)
2023/06/16
2023/06/17
Cape Town (WCT)
Standard
70
0.87
6
6
3.0
1337.4
1301.1
Analysis
33
Steinitz Open 2023 (C)
2023/05/26
2023/05/28
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1403.7
1391.5
Analysis
32
Western Cape HS Individuals 2023 (U15 Girls)
2023/04/01
2023/04/02
Cape Town (WCT)
Standard
60
0.83
6
6
4.0
1340.0
1338.8
Analysis
31
Cape Town Open 2023 (Intermediate)
2023/03/25
2023/03/26
Cape Town (WCT)
Standard
70
0.87
6
5
3.0
1258.9
1225.2
Analysis
30
Cape Town Metro Schools Chess Closed Individuals 2023 (U15 Girls)
2023/02/03
2023/03/04
Cape Town (WCT)
Standard
60
0.83
6
6
4.5
1258.9
1225.2
Analysis
29
North District School Trials 2023 (U15 Girls)
2023/02/03
2023/02/04
Cape Town (WCT)
Standard
60
0.83
6
6
3.0
1280.7
1241.8
Analysis
28
Cape of Good Hope Open 2023 (Intermediate)
2023/01/28
2023/01/29
Cape Town (WCT)
Standard
70
0.87
6
6
2.0
1318.3
1274.9
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
43
17
6
20
20.0
46.5
-29.7
1290.7
1261.1
White
20
10
1
9
10.5
52.5
21.3
1301.3
1322.5
Black
23
7
5
11
9.5
41.3
-73.9
1281.5
1207.6
Standard
All
39
15
5
19
17.5
44.9
-43.6
1298.5
1254.9
White
18
9
1
8
9.5
52.8
23.6
1310.3
1333.9
Black
21
6
4
11
8.0
38.1
-101.2
1288.5
1187.3
Rapid
All
4
2
1
1
2.5
62.5
106.3
1214.5
1320.7
White
2
1
0
1
1.0
50.0
0.0
1220.4
1220.4
Black
2
1
1
0
1.5
75.0
212.5
1208.5
1421.0
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
253
120
16
117
128.0
50.6
5.0
1196.8
1201.8
White
125
67
6
52
70.0
56.0
51.0
1194.8
1245.8
Black
128
53
10
65
58.0
45.3
-39.8
1198.7
1158.9
Standard
All
211
101
11
99
106.5
50.5
4.0
1197.4
1201.5
White
103
57
4
42
59.0
57.3
61.9
1186.8
1248.7
Black
108
44
7
57
47.5
44.0
-51.2
1207.6
1156.4
Rapid
All
35
17
5
13
19.5
55.7
48.6
1263.2
1311.7
White
19
9
2
8
10.0
52.6
22.4
1283.5
1305.9
Black
16
8
3
5
9.5
59.4
79.7
1239.0
1318.7
Blitz
All
7
2
0
5
2.0
28.6
-182.1
845.2
663.1
White
3
1
0
2
1.0
33.3
-141.7
906.6
764.9
Black
4
1
0
3
1.0
25.0
-212.5
799.2
586.7
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
2080117986
Vermeulen, I (Inge)
5
2.5
2
1
2
50.0
1264.9
0.0
1264.9
View list
2
208090617
Zenzile, A (Amahle)
4
0.0
0
0
4
0.0
1278.3
-425.0
853.3
View list
3
1090100225
Booysen, L (Lebogang)
3
2.5
2
1
0
83.3
934.1
283.3
1217.4
View list
4
1070097077
Andries, D (Devitihano)
3
0.0
0
0
3
0.0
813.7
-425.0
388.7
View list
5
207069845
Hanekom, L (Larissa)
2
2.0
2
0
0
100.0
806.3
425.0
1231.3
View list
6
2080096088
Hart-Davis, K (Katherine)
2
2.0
2
0
0
100.0
1277.8
425.0
1702.8
View list
7
2100135805
Leipoldt, K (Kelly-Ann)
2
2.0
2
0
0
100.0
1322.9
425.0
1747.9
View list
8
2090135179
Mabunda, P (Precious)
2
2.0
2
0
0
100.0
1228.7
425.0
1653.7
View list
9
2080135807
Mouers, M (Melvia)
2
2.0
2
0
0
100.0
1129.8
425.0
1554.8
View list
10
1090130569
Ndzotyana, LI (Lwazi)
2
2.0
2
0
0
100.0
1245.8
425.0
1670.8
View list
11
110085152
Van Aarde, J (Jampie)
2
2.0
2
0
0
100.0
1027.3
425.0
1452.3
View list
12
107089446
Visagie, L (Luchiano)
2
2.0
2
0
0
100.0
837.0
425.0
1262.0
View list
13
207084932
Baai, A (Andrea)
2
1.0
1
0
1
50.0
856.1
0.0
856.1
View list
14
2080146879
Cabane, S (Sukume)
2
1.0
1
0
1
50.0
1273.3
0.0
1273.3
View list
15
107076747
Osborne, R (Ryan Eugene)
2
1.0
1
0
1
50.0
1329.6
0.0
1329.6
View list
16
1120137368
Sher, J (Jonah)
2
1.0
1
0
1
50.0
1297.1
0.0
1297.1
View list
17
2060108811
Van Niekerk, L (Lizelle)
2
1.0
1
0
1
50.0
1240.9
0.0
1240.9
View list
18
208088220
Afonso, IS (Isabella)
2
0.5
0
1
1
25.0
1273.3
-212.5
1060.8
View list
19
2080100490
Nazo, A (Andisiwe)
2
0.5
0
1
1
25.0
1281.5
-212.5
1069.0
View list
20
2070150247
Caeser, W (Waynika)
2
0.0
0
0
2
0.0
1268.8
-425.0
843.8
View list