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Chess SA Region AOC

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Yul Siebritz

1110139048
West Coast (WCU)
Personal
Main rating
Rating 1398.8
K-factor 32
Floor 963.4
Highest 1466.9 (2024-02-01)
Min/Max +/- allowed 113
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1282.5
Final +/- 0
New Rating
()
Rating 1398.8
K-factor 32
Floor 963.4
Highest 1466.9 (2024-02-01)
Min/Max +/- allowed 113.4
Standard rating
Rating 1377.1
K-factor 32
Floor 924.6
Highest 1424.6 (2026-03-01)
Min/Max +/- allowed 120.4
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1304.4
Final +/- 0
New Rating
()
Rating 1377.1
K-factor 32
Floor 924.6
Highest 1424.6 (2026-03-01)
Min/Max +/- allowed 120.4
Rapid rating
Rating 1463.1
K-factor 32
Floor 1030.8
Highest 1549.5 (2024-02-01)
Min/Max +/- allowed 100.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1290.1
Final +/- 0
New Rating
()
Rating 1463.1
K-factor 32
Floor 1030.8
Highest 1549.5 (2024-02-01)
Min/Max +/- allowed 100.8
Blitz rating
Rating 1375.9
K-factor 32
Floor 903.4
Highest 1418 (2024-04-01)
Min/Max +/- allowed 121.5
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 1168.4
Final +/- 0
New Rating
()
Rating 1375.9
K-factor 32
Floor 903.4
Highest 1418 (2024-04-01)
Min/Max +/- allowed 121.5
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 2026 WCSC HS Individual Championship (U15 Boys) Standard 2026-05-02 2026-05-03 Eden (WEG) 6 1440.7 6 1.5 1191.4 -46.7 Details
2 Moja Chess Extravaganza 2026 (U16) Standard 2026-04-25 2026-04-26 Cape Town (WCT) 5 1440.7 5 2.5 1478.3 4.8 Details
3 West Coast Schools Prestige Individuals Championships 2026 (U15 Boys) Standard 2026-02-28 2026-03-07 West Coast (WCU) 6 1416.8 3 3 1658.3 23.9 Details
4 West Coast League 2026 (B) Rapid 2026-02-07 2026-02-07 West Coast (WCU) 5 1418.3 4 2 1443.9 0.9 Details
5 West Coast Schools Chess Grand Challenge League 2025 (HS Super) Rapid 2025-11-08 2025-11-08 West Coast (WCU) 5 1423 5 2.5 1391.4 -1.7 Details
6 Basil Ellman Annual Rapid 2025 (Seniors) Rapid 2025-09-20 2025-09-20 West Coast (WCU) 5 1429.8 5 2 1170.2 -18.5 Details
7 Western Cape Women’s Championship 2025 (Sunday Rapid) Rapid 2025-08-10 2025-08-10 West Coast (WCU) 5 1421.6 5 3 1521.8 5.2 Details
8 Lower West Coast Top Schools 2025 (U17) Rapid 2025-06-14 2025-06-14 West Coast (WCU) 6 1457.1 6 2.5 1201.4 -16.9 Details
9 Deep Blue Open 2025 (A) Standard 2025-06-21 2025-06-21 West Coast (WCU) 5 1457.1 5 2 1373.6 -7.6 Details
10 West Coast And Mykonos Open 2025 (Open) Standard 2025-05-02 2025-05-04 West Coast (WCU) 6 1438.9 6 4 1524.3 11.4 Details
11 Western Cape Schools Individual Championship 2025 (U15 Boys) Standard 2025-04-26 2025-04-27 West Coast (WCU) 6 1409.6 6 4 1565.9 18.3 Details
12 West Coast Schools Chess Prestige 2025 (U15 Boys) Standard 2025-03-08 2025-03-08 West Coast (WCU) 6 1416.1 6 4 1379.7 -4 Details
13 Lower West Coast Prestige 2025 (U15 Boys) Rapid 2025-02-22 2025-02-22 West Coast (WCU) 5 1417.1 5 3.5 1399.1 -0.6 Details
14 Lambertsbay Chess Club Crayfish Classic 2024 Standard 2024-12-16 2024-12-16 West Coast (WCU) 5 1442.1 5 2.5 1289 -15.6 Details
15 West Coast Grand Challange League 2024 (PS Champions) Rapid 2024-10-26 2024-10-26 West Coast (WCU) 5 1417.7 5 4.5 1648.6 15.3 Details
16 Western Cape Women’s Championship 2024 (Advanced) Classical 2024-08-08 2024-08-11 West Coast (WCU) 6 1432.1 6 3 1369.4 -9 Details
17 South African Open Chess Championship 2024 (C) Standard 2024-07-04 2024-07-07 Ethekwini (KED) 7 1463.4 7 4 1339.4 -19.5 Details
18 Lambertsbay Youth Open 2024 (Elite) Rapid 2024-06-17 2024-06-17 West Coast (WCU) 5 1454 5 4 1553.2 7.1 Details
19 Basil Ellman Annual Rapid 2024 (Elite) Rapid 2024-06-08 2024-06-08 West Coast (WCU) 5 1454 5 2.5 1441.9 -1.3 Details
20 Deep Blue CC May Blitz 2024 Blitz 2024-05-22 2024-05-22 West Coast (WCU) 7 1384.2 7 4 1388.4 0 Details
21 West Coast & Mykonos Open 2024 (Open) Standard 2024-05-17 2024-05-19 West Coast (WCU) 6 1384.2 6 3 1290.1 -12.2 Details
22 Lower West Top Schools 2024 (U18) Rapid 2024-05-11 2024-05-11 West Coast (WCU) 5 1384.2 4 3.5 1592.1 10.9 Details
23 Western Cape PS Individuals Championship 2024 (U13 Boys) Standard 2024-05-04 2024-05-05 West Coast (WCU) 6 1384.2 6 3.5 1622.8 27.7 Details
24 Lambersbaai Open 2024 (A) Rapid 2024-05-01 2024-05-01 West Coast (WCU) 5 1384.2 5 5 1624.6 17.3 Details
25 Deep Blue Chess Club April Blitz 2024 Blitz 2024-04-24 2024-04-24 West Coast (WCU) 7 1392 5 4 1544.5 3.1 Details
26 Deep Blue Open 2024 (Elite) Rapid 2024-04-13 2024-04-13 West Coast (WCU) 5 1392 5 1.5 1204.3 -15 Details
27 Deep Blue March Blitz 2024 Blitz 2024-03-27 2024-03-27 West Coast (WCU) 5 1392 5 5 1714.1 7 Details
28 Western Cape Inter Region Cup 2024 (U14 Boys) Standard 2024-03-23 2024-03-24 Overberg (WOS) 5 1407.7 4 1 1305.8 -9 Details
29 Western Cape Inter Region Cup 2024 (Blitz) Blitz 2024-03-22 2024-03-22 Overberg (WOS) 7 1407.7 7 2 1222.3 -5.3 Details
30 West Coast Schools Chess Prestige Championships 2024 (U13 Boys) Rapid 2024-03-09 2024-03-09 West Coast (WCU) 5 1407.7 5 3.5 1476.7 4.6 Details
31 Lower West Coast Schools Chess Prestige 2024 (U13 Boys) Rapid 2024-02-17 2024-02-17 West Coast (WCU) 5 1367.6 4 4 1645.5 15.9 Details
32 Deep Blue February Blitz Juniors 2024 Blitz 2024-02-28 2024-02-28 West Coast (WCU) 7 1367.6 7 6.5 1592.7 6.6 Details
33 Longacres Top 10 Battle January 2024 Rapid 2024-01-27 2024-01-27 West Coast (WCU) 5 1345.1 5 4 1444.5 3.6 Details
34 Deep Blue CC Blitz 2024 (Juniors) Blitz 2024-01-27 2024-01-27 West Coast (WCU) 7 1345.1 7 7 1639.3 8.9 Details
35 Clanwilliam Chess Club Open 2023 (B) Rapid 2023-12-02 2023-12-02 West Coast (WCU) 5 1315.4 5 4 1534.4 16.4 Details
36 Deep Blue Open Team 2023 Rapid 2023-11-04 2023-11-04 West Coast (WCU) 5 1280.6 5 4 1548.2 19.6 Details
37 West Coast Primary Schools Grand Challenge League 2023 (Primary School) Rapid 2023-10-21 2023-10-21 West Coast (WCU) 5 1265.2 5 3.5 1446.1 8.6 Details
38 Western Cape Closed Championship 2023 (D) Standard 2023-09-24 2023-09-25 Cape Town (WCT) 6 1322.3 6 3 1345.4 3 Details
39 Deep Blue Open 2023 (Elite) Rapid 2023-09-16 2023-09-16 West Coast (WCU) 5 1322.3 5 1 1043.1 -19.5 Details
40 Basil Ellman Rapid 2023 (C) Rapid 2023-09-30 2023-09-30 West Coast (WCU) 5 1322.3 5 1 1099.7 -15.3 Details
41 CW Top Schools 2023 (Advanced) Standard 2023-08-11 2023-08-13 West Coast (WCU) 6 1350.4 6 2 1233.6 -15.6 Details
42 Pedro Booyse Top Schools 2023 (U13) Standard 2023-07-29 2023-07-29 West Coast (WCU) 5 1333.1 5 3 1439.5 9.6 Details
43 Youth Day 1 2023 (Elite) Rapid 2023-06-17 2023-06-17 West Coast (WCU) 5 1378.3 5 2 1327.4 -3.3 Details
44 West Coast Open 2023 (Elite) Standard 2023-05-20 2023-06-03 West Coast (WCU) 5 1378.3 5 2 1211.6 -15.9 Details
45 Lower West Coast Top Schools Championships 2023 (U13) Rapid 2023-06-10 2023-06-10 West Coast (WCU) 5 1378.3 5 3 1295.8 -6.3 Details
46 Western Cape PS Individuals 2023 (U13 Boys) Standard 2023-05-05 2023-05-06 Cape Town (WCT) 6 1328.9 6 3.5 1543.2 24.9 Details
47 St Helenabaai Open 2023 (Elite) Rapid 2023-05-13 2023-05-13 West Coast (WCU) 5 1328.9 5 2 1356.6 2.4 Details
48 WCCI Open 2023 (A) Rapid 2023-04-29 2023-04-29 West Coast (WCU) 5 1258 5 5 1758 39.1 Details
49 WCCI Open 2023 (Blitz) Blitz 2023-04-29 2023-04-29 West Coast (WCU) 5 1258 5 2 1269 0.1 Details
50 Western Cape Inter Regional 2023 (Junior Boys) Standard 2023-03-18 2023-03-19 Eden (WEG) 5 1246.2 2 0 1049 -8.8 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 18
Wins 8
Draws 2
Losses 8
White 9
Black 9
White wins 4
Black wins 4
Score 9
Percent 50
Dp 0
AOR 1405
Performance 1405
Game statistics (History)
Games 338
Wins 181
Draws 22
Losses 135
White 171
Black 167
White wins 96
Black wins 85
Score 192
Percent 56.8
Dp 57.8
AOR 1321.6
Performance 1379.4
Rankings (Main)
National
Overall 3626
Gender 3064
Age group 497
Gender/Age 401
Provincial
Overall 1118
Gender 906
Age group 152
Gender/Age 117
Regional
Overall 81
Gender 64
Age group 16
Gender/Age 13
Rankings (Standard)
National
Overall 3653
Gender 3035
Age group 542
Gender/Age 432
Provincial
Overall 1075
Gender 843
Age group 156
Gender/Age 118
Regional
Overall 66
Gender 52
Age group 13
Gender/Age 10
Rankings (Rapid)
National
Overall 519
Gender 475
Age group 83
Gender/Age 72
Provincial
Overall 244
Gender 216
Age group 34
Gender/Age 28
Regional
Overall 36
Gender 27
Age group 10
Gender/Age 7
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 18
Score 9
Percent 50
Aor 1405
Dp 0
Prat 1405
Performance (12 months)
Games 44
Score 21
Percent 47.7
Aor 1378
Dp -19.3
Prat 1358.7
Performance (History)
Games 338
Score 192
Percent 56.8
Aor 1321.6
Dp 57.8
Prat 1379.4
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Ellman, A (Anne-Belle) 9 3 6 Youth Day 1 2023 (Elite) Lambertsbay Youth Open 2024 (Elite) Details
Overall 2 Siebritz, N (Noelle) 7 5 2 Deep Blue CC Blitz 2024 (Juniors) Deep Blue Open 2025 (A) Details
Overall 3 Ellman, A (Andries) 5 2 3 Deep Blue CC Blitz 2024 (Juniors) Lambertsbay Youth Open 2024 (Elite) Details
Overall 4 Wehr, C (Corbin) 5 2 3 Deep Blue Open Team 2023 Deep Blue CC May Blitz 2024 Details
Overall 5 Klaasens, J (Jemaine) 5 2 3 Lower West Coast Schools Prestige 2022 (U11 Boys) Clanwilliam Chess Club Open 2023 (B) Details
Standard 1 Prinsloo, L (Lyle) 3 3 0 Western Cape Closed Championship 2022 (U12) Western Cape PS Individuals Championship 2024 (U13 Boys) Details
Standard 2 Siebritz, N (Noelle) 3 2 1 South African Open Chess Championship 2024 (C) Deep Blue Open 2025 (A) Details
Standard 3 Maarman, L (Luciano) 2 0 2 West Coast Schools Chess Prestige 2025 (U15 Boys) West Coast Schools Prestige Individuals Championships 2026 (U15 Boys) Details
Standard 4 Duiker, P (Phillip) 2 1 1 West Coast Open 2022 (Open) West Coast Open 2023 (Elite) Details
Standard 5 Maruma, KB (Kamogelo) 2 1 1 Western Cape Closed Championship 2023 (D) Western Cape Inter Region Cup 2024 (U14 Boys) Details
Rapid 1 Klaasens, J (Jemaine) 5 2 3 Lower West Coast Schools Prestige 2022 (U11 Boys) Clanwilliam Chess Club Open 2023 (B) Details
Rapid 2 Arendse, Q (Quinwinne) 4 3 1 St Helenabaai Open 2023 (Elite) Lower West Coast Prestige 2025 (U15 Boys) Details
Rapid 3 Ellman, A (Anne-Belle) 4 2 2 Youth Day 1 2023 (Elite) Lambertsbay Youth Open 2024 (Elite) Details
Rapid 4 Koopman, T (Tyler) 4 3 1 Lower West Coast Primary Schools Prestige Championships 2023 (U13 Boys) West Coast Primary Schools Grand Challenge League 2023 (Primary School) Details
Rapid 5 Visagie, C (Christopher) 4 1 3 Onder-Weskus Top Skole 2022 (O13 Seuns) West Coast League 2026 (B) Details
Blitz 1 Ellman, A (Anne-Belle) 5 1 4 Deep Blue CC Blitz 2024 (Juniors) Deep Blue CC May Blitz 2024 Details
Blitz 2 Wehr, C (Corbin) 4 2 2 Deep Blue CC Blitz 2024 (Juniors) Deep Blue CC May Blitz 2024 Details
Blitz 3 Siebritz, N (Noelle) 4 3 1 Deep Blue CC Blitz 2024 (Juniors) Deep Blue Chess Club April Blitz 2024 Details
Blitz 4 Ellman, A (Andries) 4 2 2 Deep Blue CC Blitz 2024 (Juniors) Deep Blue CC May Blitz 2024 Details
Blitz 5 Sedeman, A (Aiden) 3 3 0 Deep Blue March Blitz 2024 Deep Blue CC May Blitz 2024 Details