Chess South Africa
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Chess South Africa
Botha, E (Eduan)
Dob:
2012/08/12 (U14)
Gender:
Male
Chess SA id:
1120112770
FIDE id:
Region:
Cape Town (WCT)
Citizen:
RSA
Title(s):
Last active:
2024/03/16 (47 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
1559.1
Curent Weighted rating
1550.5
Curent Weighted performance
1416.8
Current official/published rating (highest between Raw, WR and WP)
1559.1
Current floor (min rating allowed)
1075.5
Current highest rating achieved
1575.5
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)
±99.4
Current Raw change used (final)
0.0
Projected new Raw rating
1559.1
Projected new Weighed rating
1551.9
Projected new Weighted performance
1416.8
Projected new official/published rating (highest between new Raw, new WR and new WP)
1559.1
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1575.5
Projected new floor
1075.5
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
1507.8
Curent Weighted rating
1513.3
Curent Weighted performance
1366.9
Current official/published rating (highest between Raw, WR and WP)
1513.3
Current floor (min rating allowed)
1042.4
Current highest rating achieved
1542.4
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)
±106.9
Current Raw change used (final)
0.0
Projected new Raw rating
1507.8
Projected new Weighed rating
1513.3
Projected new Weighted performance
1366.9
Projected new official/published rating (highest between new Raw, new WR and new WP)
1513.3
Projected effective change (new Official - current Official)
+0.1
Projected new highest rating
1542.4
Projected new floor
1042.4
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
1523.4
Curent Weighted rating
1467.5
Curent Weighted performance
1452.1
Current official/published rating (highest between Raw, WR and WP)
1523.4
Current floor (min rating allowed)
1023.4
Current highest rating achieved
1523.4
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)
±104.6
Current Raw change used (final)
0.0
Projected new Raw rating
1523.4
Projected new Weighed rating
1474.5
Projected new Weighted performance
1452.1
Projected new official/published rating (highest between new Raw, new WR and new WP)
1523.4
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1523.4
Projected new floor
1023.4
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
1256.8
Curent Weighted rating
1234.1
Curent Weighted performance
0.0
Current official/published rating (highest between Raw, WR and WP)
1256.8
Current floor (min rating allowed)
1023.4
Current highest rating achieved
1256.8
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)
±152.9
Current Raw change used (final)
0.0
Projected new Raw rating
1256.8
Projected new Weighed rating
1236.9
Projected new Weighted performance
0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)
1256.8
Projected effective change (new Official - current Official)
=0.0
Projected new highest rating
1256.8
Projected new floor
1023.4
Projected new K-facor
36
Tournaments
History
Did not participate this month.
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
2
Cape Town Open Rapid Chess Championship 2024 (U12)
2024/03/16
2024/03/16
Cape Town (WCT)
Rapid
25
0.54
6
6
5.0
1547.9
1488.5
Analysis
1
North District School Trials 2024 (U13 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1562.8
1523.2
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
26
Cape Town Open Rapid Chess Championship 2024 (U12)
2024/03/16
2024/03/16
Cape Town (WCT)
Rapid
25
0.54
6
6
5.0
1547.9
1488.5
Analysis
25
North District School Trials 2024 (U13 Boys)
2024/02/03
2024/02/03
Cape Town (WCT)
Standard
60
0.83
5
5
3.5
1562.8
1523.2
Analysis
24
Western Cape Closed Championship 2023 (U12)
2023/09/23
2023/09/23
Cape Town (WCT)
Rapid
25
0.54
6
6
5.0
1557.4
1452.3
Analysis
23
Western Cape Closed Championship 2023 (Blitz)
2023/09/23
2023/09/25
Cape Town (WCT)
Blitz
7
0.23
7
7
3.0
1557.4
1200.0
Analysis
22
WP Closed 2023 (U12)
2023/06/16
2023/06/17
Cape Town (WCT)
Standard
70
0.87
6
6
4.0
1575.5
1542.4
Analysis
21
Western Cape PS Individuals 2023 (U11 Boys)
2023/05/05
2023/05/06
Cape Town (WCT)
Standard
60
0.83
6
6
5.5
1530.1
1494.4
Analysis
20
Cape Town Open 2023 (U12)
2023/03/25
2023/03/25
Cape Town (WCT)
Rapid
25
0.54
6
6
6.0
1502.6
1381.0
Analysis
19
Cape Town Metro Schools Chess Closed Individuals 2023 (U11 Boys)
2023/03/03
2023/03/04
Cape Town (WCT)
Standard
60
0.83
6
6
5.0
1502.6
1486.1
Analysis
18
North District School Trials 2023 (U11 Boys)
2023/02/03
2023/02/04
Cape Town (WCT)
Standard
60
0.83
6
6
4.5
1502.6
1489.6
Analysis
17
Kenridge Rapid 2022 (U12)
2022/11/05
2022/11/05
Cape Town (WCT)
Rapid
25
0.54
6
6
4.0
1511.2
1363.0
Analysis
16
Metro Rapid 2022 (U11 Boys)
2022/10/22
2022/10/22
Cape Town (WCT)
Rapid
30
0.60
5
5
3.0
1525.2
1351.8
Analysis
15
WP Closed 2022 (U12)
2022/06/16
2022/06/16
Cape Town (WCT)
Standard
70
0.87
6
6
4.5
1509.1
1472.0
Analysis
14
Western Cape Schools 2022 (U11 Boys)
2022/05/28
2022/05/29
Cape Winelands (WCW)
Standard
65
0.85
6
6
5.0
1496.0
1450.9
Analysis
13
Metro WP Schools Chess Trials 2022 (U11 Boys)
2022/04/22
2022/04/23
Cape Town (WCT)
Standard
60
0.83
6
6
4.5
1483.0
1430.4
Analysis
12
District North 2022 (U11)
2022/03/05
2022/03/05
Cape Town (WCT)
Rapid
30
0.60
6
6
5.0
1468.2
1284.8
Analysis
11
Cape Winelands Open 2022 (U12)
2022/02/12
2022/02/13
Cape Winelands (WCW)
Standard
70
0.87
6
6
5.0
1440.1
1393.0
Analysis
10
Western Cape Schools 2021 (U9 Boys)
2021/10/23
2021/10/23
Overberg (WOS)
Rapid
35
0.66
5
5
4.0
1419.4
1230.8
Analysis
9
Western Cape Closed 2020 (Rapid)
2021/03/06
2021/03/06
Cape Town (WCT)
Rapid
25
0.54
7
6
2.0
1463.5
1310.0
Analysis
8
2020 Metro Trials (U9 Boys)
2020/03/13
2020/03/14
Cape Town (WCT)
Standard
60
0.83
5
5
4.0
1411.2
1310.7
Analysis
7
2020 Welgemoed Chess Challenge (U10)
2020/02/29
2020/02/29
Cape Town (WCT)
Rapid
30
0.60
5
5
5.0
1249.1
1200.0
Analysis
1
2
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
11
8
1
2
8.5
77.3
231.8
1330.0
1561.8
White
6
3
1
2
3.5
58.3
70.8
1333.4
1404.2
Black
5
5
0
0
5.0
100.0
425.0
1326.0
1751.0
Standard
All
5
3
1
1
3.5
70.0
170.0
1301.1
1471.1
White
3
1
1
1
1.5
50.0
0.0
1334.3
1334.3
Black
2
2
0
0
2.0
100.0
425.0
1251.3
1676.3
Rapid
All
6
5
0
1
5.0
83.3
283.3
1354.1
1637.5
White
3
2
0
1
2.0
66.7
141.7
1332.5
1474.1
Black
3
3
0
0
3.0
100.0
425.0
1375.8
1800.8
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
154
105
6
43
108.0
70.1
171.1
1289.0
1460.1
White
78
48
3
27
49.5
63.5
114.4
1299.7
1414.1
Black
76
57
3
16
58.5
77.0
229.3
1278.1
1507.4
Standard
All
96
63
6
27
66.0
68.8
159.4
1268.1
1427.5
White
50
30
3
17
31.5
63.0
110.5
1277.6
1388.1
Black
46
33
3
10
34.5
75.0
212.5
1257.8
1470.3
Rapid
All
51
39
0
12
39.0
76.5
225.0
1293.7
1518.7
White
24
17
0
7
17.0
70.8
177.1
1285.7
1462.7
Black
27
22
0
5
22.0
81.5
267.6
1300.9
1568.5
Blitz
All
7
3
0
4
3.0
42.9
-60.7
1542.1
1481.4
White
4
1
0
3
1.0
25.0
-212.5
1660.2
1447.7
Black
3
2
0
1
2.0
66.7
141.7
1384.7
1526.4
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
1120135094
Singh, S (Shaurya)
6
2.0
1
2
3
33.3
1524.2
-141.7
1382.5
View list
2
1110109831
Strydom, H (Henroux)
4
1.5
1
1
2
37.5
1475.1
-106.3
1368.8
View list
3
1110109004
Jeftha, L (Liam)
4
1.0
1
0
3
25.0
1347.7
-212.5
1135.2
View list
4
2110098074
Johnson, A (Annabelle)
3
3.0
3
0
0
100.0
1303.5
425.0
1728.5
View list
5
1120110807
Minnaar, A (Adriaan)
3
3.0
3
0
0
100.0
1512.3
425.0
1937.3
View list
6
1110108081
Muller, H (Helgard)
3
2.0
2
0
1
66.7
1440.3
141.7
1582.0
View list
7
1110097963
Pfaff, R (Ruben)
3
1.0
1
0
2
33.3
1317.8
-141.7
1176.1
View list
8
1120116389
Brey, E (Emaad)
2
2.0
2
0
0
100.0
1451.2
425.0
1876.2
View list
9
1130137322
De Villiers, C (Christiaan)
2
2.0
2
0
0
100.0
1525.3
425.0
1950.3
View list
10
1130143658
Du Preez, Z (Zolani)
2
2.0
2
0
0
100.0
1539.0
425.0
1964.0
View list
11
1120132064
Fourie, R (Ruan)
2
2.0
2
0
0
100.0
1525.3
425.0
1950.3
View list
12
2120108073
Li, K (Karena)
2
2.0
2
0
0
100.0
1235.2
425.0
1660.2
View list
13
1130147719
Michaelides, A (Alexander)
2
2.0
2
0
0
100.0
1530.0
425.0
1955.0
View list
14
1120138507
Shasha, I (Iyanda)
2
2.0
2
0
0
100.0
1502.6
425.0
1927.6
View list
15
1120112772
Winshaw, JJ (James John)
2
2.0
2
0
0
100.0
1389.6
425.0
1814.6
View list
16
1110102387
Smith, Z (Zion)
2
1.5
1
1
0
75.0
1496.0
212.5
1708.5
View list
17
1130137335
Nel, C (Charles Paul)
2
1.0
1
0
1
50.0
1502.6
0.0
1502.6
View list
18
1120113687
Prinsloo, L (Lyle)
2
1.0
1
0
1
50.0
1472.3
0.0
1472.3
View list
19
1120138780
Rall, L (Lian)
2
1.0
1
0
1
50.0
1510.6
0.0
1510.6
View list
20
2100097164
Lockem , M (Marli)
2
0.0
0
0
2
0.0
1235.2
-425.0
810.2
View list