Chess South Africa
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Chess South Africa
Botha, A (Andrea)
Dob:
2010/09/06 (U16)
Gender:
Female
Chess SA id:
210091697
FIDE id:
Region:
Johannesburg Metro (GJM)
Citizen:
RSA
Title(s):
Last active:
2024/05/04 (10 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
1355.3
Curent Weighted rating
1349.5
Curent Weighted performance
1286.6
Current official/published rating (highest between Raw, WR and WP)
1355.3
Current floor (min rating allowed)
889.3
Current highest rating achieved
1389.3
Current K-factor
36
Games played this month
5
Score (S)
2.0
Expected score (We)
2.31
Difference (S-We)
-0.31
Current Raw change (no limits, including tournament time weight)
-9.3
Current min/max change allowed (with limits)
±132.9
Current Raw change used (final)
-9.3
Projected new Raw rating
1346.0
Projected new Weighed rating
1351.3
Projected new Weighted performance
1286.6
Projected new official/published rating (highest between new Raw, new WR and new WP)
1351.3
Projected effective change (new Official - current Official)
-4.0
Projected new highest rating
1389.3
Projected new floor
889.3
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
1350.7
Curent Weighted rating
1345.3
Curent Weighted performance
1287.7
Current official/published rating (highest between Raw, WR and WP)
1350.7
Current floor (min rating allowed)
887.4
Current highest rating achieved
1387.4
Current K-factor
36
Games played this month
5
Score (S)
2.0
Expected score (We)
2.36
Difference (S-We)
-0.36
Current Raw change (no limits, including tournament time weight)
-13.0
Current min/max change allowed (with limits)
±133.8
Current Raw change used (final)
-13.0
Projected new Raw rating
1337.7
Projected new Weighed rating
1346.9
Projected new Weighted performance
1287.7
Projected new official/published rating (highest between new Raw, new WR and new WP)
1346.9
Projected effective change (new Official - current Official)
-3.8
Projected new highest rating
1387.4
Projected new floor
887.4
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
1160.0
Curent Weighted rating
1160.0
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1160.0
Current floor (min rating allowed)
660.0
Current highest rating achieved
1160.0
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)
±175.5
Current Raw change used (final)
0.0
Projected new Raw rating
1160.0
Projected new Weighed rating
1160.0
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1160.0
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1160.0
Projected new floor
660.0
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
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)
660.0
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)
±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
660.0
Projected new K-facor
36
Tournaments
History
Tournament:
JMC Helpmekaar Kollege Tournament 2024 (C)
Start:
2024/05/04
End:
2024/05/04
Host:
GJM
Type:
Standard
Time:
60
Time weight:
0.83
Rounds:
5
Games:
5
Score:
2.0
Main rating:
1355.3
Rating gain/loss:
-9.3
Type rating:
1350.7
Rating gain/loss:
-13.0
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
4
JMC Helpmekaar Kollege Tournament 2024 (C)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1355.3
1350.7
Analysis
3
1st Knights Open Tournament 2024 (C)
2024/03/23
2024/03/23
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1362.8
1357.9
Analysis
2
JMC Kick Off Tournament 2024 (D)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1389.3
1387.4
Analysis
1
2024 Gauteng Inter-Region Chess Championship (U14 Girls)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
2.5
1389.3
1387.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
41
JMC Helpmekaar Kollege Tournament 2024 (C)
2024/05/04
2024/05/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1355.3
1350.7
Analysis
40
1st Knights Open Tournament 2024 (C)
2024/03/23
2024/03/23
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1362.8
1357.9
Analysis
39
JMC Kick Off Tournament 2024 (D)
2024/01/28
2024/01/28
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1389.3
1387.4
Analysis
38
2024 Gauteng Inter-Region Chess Championship (U14 Girls)
2024/01/13
2024/01/14
Tshwane (GTP)
Standard
90
0.94
5
5
2.5
1389.3
1387.4
Analysis
37
2023 Gauteng Top Schools (U13 Mixed)
2023/08/18
2023/08/18
West Rand (GWR)
Standard
60
0.83
5
5
3.5
1339.0
1333.0
Analysis
36
JMC Closed Aug 2023 (U14)
2023/08/04
2023/08/06
Johannesburg Metro (GJM)
Standard
90
0.94
6
6
3.0
1339.0
1333.0
Analysis
35
JMC Trinity Little Falls 2023 (C)
2023/07/02
2023/07/02
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1342.9
1339.8
Analysis
34
JNW Open - Trinityhouse Little Falls 2023 (C)
2023/06/24
2023/06/24
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.5
1303.5
1297.6
Analysis
33
Gauteng Schools Individual Finals 2023 (U13 Girls)
2023/05/26
2023/05/26
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.0
1308.2
1309.5
Analysis
32
JNW Open - Trinityhouse Little Falls 2023 (C)
2023/05/13
2023/05/13
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
2.0
1308.2
1309.5
Analysis
31
Mzansi Fide Open 2023 (Intermediate)
2023/04/27
2023/05/01
Johannesburg Metro (GJM)
Standard
120
1.00
6
6
3.0
1308.2
1309.5
Analysis
30
JNW Open - Crawford 2023 (C)
2023/03/04
2023/03/04
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
4.0
1267.3
1259.8
Analysis
29
2022 South African Junior Team Chess Championships (U14 Open)
2022/12/04
2022/12/08
4 Knights (4K)
Standard
120
1.00
7
6
2.0
1297.9
1283.2
Analysis
28
JMC 2nd Trials 2022 (C)
2022/08/27
2022/08/27
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1182.4
1169.2
Analysis
27
2022 Gauteng Schools Team Championships (U13 Open)
2022/08/27
2022/08/27
Tshwane (GTP)
Standard
60
0.83
5
5
4.0
1182.4
1169.2
Analysis
26
JMC Trials 1 - Laerskool Fontainebleau 2022 (U14)
2022/07/24
2022/07/24
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
1.0
1213.2
1206.3
Analysis
25
2022 Gauteng Schools Individual Chess Championship (U13 Girls)
2022/06/18
2022/06/18
Ekurhuleni (GE)
Standard
60
0.83
5
5
3.5
1179.1
1162.4
Analysis
24
JNW Trinityhouse LF 2022 (Contenders)
2022/03/12
2022/03/12
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
1.5
1221.2
1212.8
Analysis
23
2022 Gauteng Interregion (U12 Open)
2022/02/26
2022/02/26
Tshwane (GTP)
Standard
60
0.83
5
5
3.0
1115.2
1101.4
Analysis
22
JMC @ Pinnacle 2022 (C)
2022/02/19
2022/02/19
Johannesburg Metro (GJM)
Standard
60
0.83
5
5
3.0
1115.2
1101.4
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
20
10
1
9
10.5
52.5
21.3
1293.0
1314.2
White
10
5
0
5
5.0
50.0
0.0
1296.5
1296.5
Black
10
5
1
4
5.5
55.0
42.5
1289.4
1331.9
Standard
All
20
10
1
9
10.5
52.5
21.3
1293.0
1314.2
White
10
5
0
5
5.0
50.0
0.0
1296.5
1296.5
Black
10
5
1
4
5.5
55.0
42.5
1289.4
1331.9
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
207
101
11
95
106.5
51.4
12.3
1205.9
1218.2
White
103
50
8
45
54.0
52.4
20.6
1193.3
1213.9
Black
104
51
3
50
52.5
50.5
4.1
1218.4
1222.5
Standard
All
203
100
11
92
105.5
52.0
16.7
1204.0
1220.7
White
101
49
8
44
53.0
52.5
21.0
1193.4
1214.5
Black
102
51
3
48
52.5
51.5
12.5
1214.4
1226.9
Rapid
All
4
1
0
3
1.0
25.0
-212.5
1303.3
1090.8
White
2
1
0
1
1.0
50.0
0.0
1184.5
1184.5
Black
2
0
0
2
0.0
0.0
-425.0
1422.2
997.2
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 id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
210092704
Deysel, H (Hannah)
4
1.0
1
0
3
25.0
1193.4
-212.5
980.9
View list
2
110091688
Kwak, J (Jaeson)
3
3.0
3
0
0
100.0
1259.6
425.0
1684.6
View list
3
2110107817
Onyemah, I (Ifeoma)
3
2.5
2
1
0
83.3
1145.9
283.3
1429.2
View list
4
1090130898
Mesele, O (Oboitshepo)
3
1.0
1
0
2
33.3
1169.7
-141.7
1028.0
View list
5
110086360
Wang, Y (Yiren)
3
0.0
0
0
3
0.0
1133.5
-425.0
708.5
View list
6
2100105562
Li, Y (Yangyang)
2
2.0
2
0
0
100.0
1110.7
425.0
1535.7
View list
7
1100099598
Rossouw, A (Andries Jacobus Putter)
2
1.5
1
1
0
75.0
1141.2
212.5
1353.7
View list
8
110091691
Barker, R (Ryan)
2
1.0
1
0
1
50.0
1211.7
0.0
1211.7
View list
9
1120119998
Horne, K (Kian Louis)
2
1.0
1
0
1
50.0
1325.6
0.0
1325.6
View list
10
2100100924
Kayiya, A (Anashe)
2
1.0
1
0
1
50.0
1150.7
0.0
1150.7
View list
11
1100141972
Mallach, M (Matthew)
2
1.0
1
0
1
50.0
1276.1
0.0
1276.1
View list
12
1100099279
Oosthuizen, J (Juan)
2
1.0
1
0
1
50.0
1168.8
0.0
1168.8
View list
13
2130130731
Papanicolaou, M (Mila)
2
1.0
1
0
1
50.0
1349.1
0.0
1349.1
View list
14
1110134886
Thomson-Selibowitz, R (Ryder)
2
1.0
1
0
1
50.0
1347.2
0.0
1347.2
View list
15
1130140205
Wessels, T (Theodore)
2
1.0
1
0
1
50.0
1287.8
0.0
1287.8
View list
16
1070118239
Williams, ZJ (Zachary John)
2
1.0
1
0
1
50.0
1132.1
0.0
1132.1
View list
17
2080134889
Yegay, E (Erika)
2
1.0
1
0
1
50.0
1116.1
0.0
1116.1
View list
18
1130130727
Badenhorst, M (Matthew)
2
0.0
0
0
2
0.0
1211.7
-425.0
786.7
View list
19
1100133076
Hazelton-Lagarrigue, V (Vincent)
2
0.0
0
0
2
0.0
1227.1
-425.0
802.1
View list
20
108082807
Joseph, J (Jamie)
2
0.0
0
0
2
0.0
1161.2
-425.0
736.2
View list