Chess South Africa
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Chess South Africa
Siebritz, Y (Yul)
Dob:
2011/01/09 (U14)
Gender:
Male
Chess SA id:
1110139048
FIDE id:
Region:
West Coast (WCU)
Citizen:
RSA
Title(s):
Last active:
2024/07/07 (20 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
1463.4
Current Weighted rating
1354.1
Current Weighted performance
1354.6
Current official/published rating (highest between Raw, WR and WP)
1463.4
Current highest rating achieved
1463.4
Current floor (min rating allowed)
963.4
Current K-factor
32
Games played this month
7
Score (S)
4.0
Expected score (We)
5.04
Difference (S-We)
-0.98
Current Raw change (no limits, including tournament time weight)
-31.3
Current min/max change allowed (with limits)
±113.9
Current Raw change used (final)
-31.3
Projected new Raw rating
1432.1
Projected new Weighed rating
1248.5
Projected new Weighted performance
1347.7
Projected new final Raw rating (if new WP > new Raw)
1432.1
Projected new highest rating
1463.4
Projected new floor
963.4
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1432.1
Projected effective change (new Official - current Official)
-31.3
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
1370.8
Current Weighted rating
1292.7
Current Weighted performance
1323.3
Current official/published rating (highest between Raw, WR and WP)
1370.8
Current highest rating achieved
1370.8
Current floor (min rating allowed)
870.8
Current K-factor
36
Games played this month
7
Score (S)
4.0
Expected score (We)
4.47
Difference (S-We)
-0.47
Current Raw change (no limits, including tournament time weight)
-16.9
Current min/max change allowed (with limits)
±130.0
Current Raw change used (final)
-16.9
Projected new Raw rating
1353.9
Projected new Weighed rating
1191.0
Projected new Weighted performance
1341.6
Projected new final Raw rating (if new WP > new Raw)
1353.9
Projected new highest rating
1370.8
Projected new floor
870.8
Projected new K-facor
36
Projected new official/published rating (highest between new Raw, new WR and new WP)
1353.9
Projected effective change (new Official - current Official)
-16.9
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
1490.5
Current Weighted rating
1382.2
Current Weighted performance
1486.3
Current official/published rating (highest between Raw, WR and WP)
1490.5
Current highest rating achieved
1517.4
Current floor (min rating allowed)
1017.4
Current K-factor
32
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)
±109.6
Current Raw change used (final)
0.0
Projected new Raw rating
1490.5
Projected new Weighed rating
1275.9
Projected new Weighted performance
1486.3
Projected new final Raw rating (if new WP > new Raw)
1490.5
Projected new highest rating
1517.4
Projected new floor
1017.4
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1490.5
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
1375.9
Current Weighted rating
1225.2
Current Weighted performance
1436.0
Current official/published rating (highest between Raw, WR and WP)
1436.0
Current highest rating achieved
1403.4
Current floor (min rating allowed)
903.4
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)
±129.1
Current Raw change used (final)
0.0
Projected new Raw rating
1375.9
Projected new Weighed rating
1129.1
Projected new Weighted performance
1436.0
Projected new final Raw rating (if new WP > new Raw)
1436.0
Projected new highest rating
1436.0
Projected new floor
936.0
Projected new K-facor
32
Projected new official/published rating (highest between new Raw, new WR and new WP)
1436.0
Projected effective change (new Official - current Official)
=0.0
Tournaments
History
Tournament:
South African Open Chess Championship 2024 (C)
Start:
2024/07/04
End:
2024/07/07
Host:
KED
Type:
Standard
Time:
90
Time weight:
0.94
Rounds:
7
Games:
7
Score:
4.0
Main rating:
1463.4
Rating gain/loss:
-31.3
Type rating:
1370.8
Rating gain/loss:
-16.9
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rns
Gms
Scr
Main
Type
Analysis
18
South African Open Chess Championship 2024 (C)
2024/07/04
2024/07/07
Ethekwini (KED)
Standard
90
0.94
7
7
4.0
1463.4
1370.8
Analysis
17
Lambertsbay Youth Open 2024 (Elite)
2024/06/17
2024/06/17
West Coast (WCU)
Rapid
33
0.64
5
5
4.0
1454.0
1495.0
Analysis
16
Basil Ellman Annual Rapid 2024 (Elite)
2024/06/08
2024/06/08
West Coast (WCU)
Rapid
28
0.58
5
5
2.5
1454.0
1495.0
Analysis
15
Deep Blue CC May Blitz 2024
2024/05/22
2024/05/22
West Coast (WCU)
Blitz
5
0.18
7
7
4.0
1384.2
1403.4
Analysis
14
West Coast & Mykonos Open 2024 (Open)
2024/05/17
2024/05/19
West Coast (WCU)
Standard
90
0.94
6
6
3.0
1384.2
1292.3
Analysis
13
Lower West Top Schools 2024 (U18)
2024/05/11
2024/05/11
West Coast (WCU)
Rapid
30
0.60
5
4
3.5
1384.2
1454.4
Analysis
12
Western Cape PS Individuals Championship 2024 (U13 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
3.5
1384.2
1292.3
Analysis
11
Lambersbaai Open 2024 (A)
2024/05/01
2024/05/01
West Coast (WCU)
Rapid
32
0.63
5
5
5.0
1384.2
1454.4
Analysis
10
Deep Blue Chess Club April Blitz 2024
2024/04/24
2024/04/24
West Coast (WCU)
Blitz
5
0.18
7
5
4.0
1392.0
1249.4
Analysis
9
Deep Blue Open 2024 (Elite)
2024/04/13
2024/04/13
West Coast (WCU)
Rapid
35
0.66
5
5
1.5
1392.0
1517.4
Analysis
8
Deep Blue March Blitz 2024
2024/03/27
2024/03/27
West Coast (WCU)
Blitz
5
0.18
5
5
5.0
1392.0
1249.4
Analysis
7
Western Cape Inter Region Cup 2024 (U14 Boys)
2024/03/23
2024/03/24
Overberg (WOS)
Standard
90
0.94
5
4
1.0
1407.7
1291.6
Analysis
6
Western Cape Inter Region Cup 2024 (Blitz)
2024/03/22
2024/03/22
Overberg (WOS)
Blitz
5
0.18
7
7
2.0
1407.7
1347.0
Analysis
5
West Coast Schools Chess Prestige Championships 2024 (U13 Boys)
2024/03/09
2024/03/09
West Coast (WCU)
Rapid
30
0.60
5
5
3.5
1407.7
1507.9
Analysis
4
Deep Blue February Blitz Juniors 2024
2024/02/28
2024/02/28
West Coast (WCU)
Blitz
5
0.18
7
7
6.5
1367.6
1277.2
Analysis
3
Lower West Coast Schools Chess Prestige 2024 (U13 Boys)
2024/02/17
2024/02/17
West Coast (WCU)
Rapid
30
0.60
5
4
4.0
1367.6
1380.2
Analysis
2
Longacres Top 10 Battle January 2024
2024/01/27
2024/01/27
West Coast (WCU)
Rapid
12
0.33
5
5
4.0
1345.1
1364.5
Analysis
1
Deep Blue CC Blitz 2024 (Juniors)
2024/01/27
2024/01/27
West Coast (WCU)
Blitz
5
0.18
7
7
7.0
1345.1
1124.4
Analysis
#
Tournament
Start
End
Host
Type
Time
Weight
Rounds
Games
Score
Main
Type
Analysis
49
South African Open Chess Championship 2024 (C)
2024/07/04
2024/07/07
Ethekwini (KED)
Standard
90
0.94
7
7
4.0
1463.4
1370.8
Analysis
48
Lambertsbay Youth Open 2024 (Elite)
2024/06/17
2024/06/17
West Coast (WCU)
Rapid
33
0.64
5
5
4.0
1454.0
1495.0
Analysis
47
Basil Ellman Annual Rapid 2024 (Elite)
2024/06/08
2024/06/08
West Coast (WCU)
Rapid
28
0.58
5
5
2.5
1454.0
1495.0
Analysis
46
Deep Blue CC May Blitz 2024
2024/05/22
2024/05/22
West Coast (WCU)
Blitz
5
0.18
7
7
4.0
1384.2
1403.4
Analysis
45
West Coast & Mykonos Open 2024 (Open)
2024/05/17
2024/05/19
West Coast (WCU)
Standard
90
0.94
6
6
3.0
1384.2
1292.3
Analysis
44
Lower West Top Schools 2024 (U18)
2024/05/11
2024/05/11
West Coast (WCU)
Rapid
30
0.60
5
4
3.5
1384.2
1454.4
Analysis
43
Western Cape PS Individuals Championship 2024 (U13 Boys)
2024/05/04
2024/05/05
West Coast (WCU)
Standard
60
0.83
6
6
3.5
1384.2
1292.3
Analysis
42
Lambersbaai Open 2024 (A)
2024/05/01
2024/05/01
West Coast (WCU)
Rapid
32
0.63
5
5
5.0
1384.2
1454.4
Analysis
41
Deep Blue Chess Club April Blitz 2024
2024/04/24
2024/04/24
West Coast (WCU)
Blitz
5
0.18
7
5
4.0
1392.0
1249.4
Analysis
40
Deep Blue Open 2024 (Elite)
2024/04/13
2024/04/13
West Coast (WCU)
Rapid
35
0.66
5
5
1.5
1392.0
1517.4
Analysis
39
Deep Blue March Blitz 2024
2024/03/27
2024/03/27
West Coast (WCU)
Blitz
5
0.18
5
5
5.0
1392.0
1249.4
Analysis
38
Western Cape Inter Region Cup 2024 (U14 Boys)
2024/03/23
2024/03/24
Overberg (WOS)
Standard
90
0.94
5
4
1.0
1407.7
1291.6
Analysis
37
Western Cape Inter Region Cup 2024 (Blitz)
2024/03/22
2024/03/22
Overberg (WOS)
Blitz
5
0.18
7
7
2.0
1407.7
1347.0
Analysis
36
West Coast Schools Chess Prestige Championships 2024 (U13 Boys)
2024/03/09
2024/03/09
West Coast (WCU)
Rapid
30
0.60
5
5
3.5
1407.7
1507.9
Analysis
35
Deep Blue February Blitz Juniors 2024
2024/02/28
2024/02/28
West Coast (WCU)
Blitz
5
0.18
7
7
6.5
1367.6
1277.2
Analysis
34
Lower West Coast Schools Chess Prestige 2024 (U13 Boys)
2024/02/17
2024/02/17
West Coast (WCU)
Rapid
30
0.60
5
4
4.0
1367.6
1380.2
Analysis
33
Longacres Top 10 Battle January 2024
2024/01/27
2024/01/27
West Coast (WCU)
Rapid
12
0.33
5
5
4.0
1345.1
1364.5
Analysis
32
Deep Blue CC Blitz 2024 (Juniors)
2024/01/27
2024/01/27
West Coast (WCU)
Blitz
5
0.18
7
7
7.0
1345.1
1124.4
Analysis
31
Clanwilliam Chess Club Open 2023 (B)
2023/12/02
2023/12/02
West Coast (WCU)
Rapid
35
0.66
5
5
4.0
1315.4
1332.2
Analysis
30
Deep Blue Open Team 2023
2023/11/04
2023/11/04
West Coast (WCU)
Rapid
30
0.60
5
5
4.0
1280.6
1268.8
Analysis
1
2
3
Game History
History
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
99
65
6
28
68.0
68.7
158.8
1315.3
1474.2
White
54
38
6
10
41.0
75.9
220.4
1299.6
1520.0
Black
45
27
0
18
27.0
60.0
85.0
1334.2
1419.2
Standard
All
23
11
1
11
11.5
50.0
0.0
1394.6
1394.6
White
12
7
1
4
7.5
62.5
106.3
1369.0
1475.3
Black
11
4
0
7
4.0
36.4
-115.9
1422.5
1306.6
Rapid
All
38
26
4
8
28.0
73.7
201.3
1290.2
1491.5
White
23
15
4
4
17.0
73.9
203.3
1304.4
1507.7
Black
15
11
0
4
11.0
73.3
198.3
1268.3
1466.6
Blitz
All
38
28
1
9
28.5
75.0
212.5
1292.5
1505.0
White
19
16
1
2
16.5
86.8
313.2
1249.9
1563.0
Black
19
12
0
7
12.0
63.2
111.8
1335.2
1447.1
Colour
Games
Wins
Draws
Losses
Score
%
Dp
Aor
Perform
Main
All
255
139
13
103
145.5
57.1
60.0
1311.6
1371.6
White
131
76
9
46
80.5
61.5
97.3
1297.8
1395.1
Black
124
63
4
57
65.0
52.4
20.6
1326.1
1346.7
Standard
All
75
34
3
38
35.5
47.3
-22.7
1359.3
1336.6
White
39
19
2
18
20.0
51.3
10.9
1366.3
1377.2
Black
36
15
1
20
15.5
43.1
-59.0
1351.6
1292.6
Rapid
All
132
74
9
49
78.5
59.5
80.5
1283.5
1364.0
White
68
39
6
23
42.0
61.8
100.0
1271.1
1371.1
Black
64
35
3
26
36.5
57.0
59.8
1296.6
1356.3
Blitz
All
48
31
1
16
31.5
65.6
132.8
1314.2
1447.1
White
24
18
1
5
18.5
77.1
230.2
1261.8
1492.0
Black
24
13
0
11
13.0
54.2
35.4
1366.7
1402.1
Top 20 opponents most often played
#
Chess SA id
Name
Games
Score
Wins
Draws
Losses
%
Aor
Dp
Perform
View
1
206055118
Ellman, A (Anne-Belle)
9
7.5
7
1
1
83.3
1380.0
283.3
1663.3
View list
2
1120100598
Ellman, A (Andries)
5
5.0
5
0
0
100.0
1388.6
425.0
1813.6
View list
3
2110159903
Siebritz, N (Noelle)
5
5.0
5
0
0
100.0
1392.0
425.0
1817.0
View list
4
1120153777
Wehr, C (Corbin)
5
5.0
5
0
0
100.0
1353.9
425.0
1778.9
View list
5
1100192698
Sedeman, A (Aiden)
4
3.0
3
0
1
75.0
1405.5
212.5
1618.0
View list
6
206077294
Galant, R (Rozaan)
4
1.0
1
0
3
25.0
1317.0
-212.5
1104.5
View list
7
1090096311
Schroeder, L (Liam)
4
1.0
1
0
3
25.0
1282.0
-212.5
1069.5
View list
8
2100142543
Love, C (Celine)
4
0.5
0
1
3
12.5
1318.9
-318.8
1000.1
View list
9
1100138326
Koopman, T (Tyler)
4
0.0
0
0
4
0.0
1304.7
-425.0
879.7
View list
10
1060099677
Njokweni, L (Llyabona)
4
0.0
0
0
4
0.0
1337.7
-425.0
912.7
View list
11
209077302
Ellman, E (Elle-Marie)
3
3.0
3
0
0
100.0
1365.6
425.0
1790.6
View list
12
1110117560
Stoffberg, M (Mikaeel)
3
2.0
2
0
1
66.7
1381.3
141.7
1522.9
View list
13
1090105088
Williams, C (Clarance-John)
3
2.0
2
0
1
66.7
1274.8
141.7
1416.4
View list
14
109093484
Duiker, P (Phillip)
3
1.5
1
1
1
50.0
1285.1
0.0
1285.1
View list
15
1100103503
Arendse, Q (Qnwinne)
3
1.0
1
0
3
33.3
1296.9
-141.7
1155.2
View list
16
1120139043
Klaasens, J (Jermaine)
3
0.5
0
1
2
16.7
1225.3
-283.3
941.9
View list
17
1120113687
Prinsloo, L (Lyle)
3
0.5
0
1
2
16.7
1328.2
-283.3
1044.9
View list
18
1060096290
Kariem, S (Shakir)
3
0.0
0
0
3
0.0
1315.6
-425.0
890.6
View list
19
109090543
Visagie, C (Christopher)
3
0.0
0
0
3
0.0
1287.9
-425.0
862.9
View list
20
1110157832
Adams, T (Tyler)
2
2.0
2
0
0
100.0
1393.0
425.0
1818.0
View list