Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Yul Siebritz

1110139048
West Coast (WCU)
Personal
Main rating
Rating 1440.7
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 1256.7
Final +/- 0
New Rating
()
Rating 1440.7
K-factor 32
Floor 963.4
Highest 1466.9 (2024-02-01)
Min/Max +/- allowed 113.4
Standard rating
Rating 1424.6
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 1306.3
Final +/- 0
New Rating
()
Rating 1424.6
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 1307.7
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 1187.5
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 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
2 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
3 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
4 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
5 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
6 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
7 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
8 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
9 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
10 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
11 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
12 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
13 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
14 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
15 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
16 Lambertsbay Youth Open 2024 (Elite) Rapid 2024-06-17 2024-06-17 West Coast (WCU) 5 1454 5 4 1553.2 7.1 Details
17 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
18 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
19 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
20 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
21 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
22 Lambersbaai Open 2024 (A) Rapid 2024-05-01 2024-05-01 West Coast (WCU) 5 1384.2 5 5 1624.6 17.3 Details
23 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
24 Deep Blue Open 2024 (Elite) Rapid 2024-04-13 2024-04-13 West Coast (WCU) 5 1392 5 1.5 1204.3 -15 Details
25 Deep Blue March Blitz 2024 Blitz 2024-03-27 2024-03-27 West Coast (WCU) 5 1392 5 5 1714.1 7 Details
26 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
27 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
28 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
29 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
30 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
31 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
32 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
33 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
34 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
35 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
36 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
37 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
38 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
39 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
40 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
41 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
42 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
43 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
44 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
45 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
46 WCCI Open 2023 (A) Rapid 2023-04-29 2023-04-29 West Coast (WCU) 5 1258 5 5 1758 39.1 Details
47 WCCI Open 2023 (Blitz) Blitz 2023-04-29 2023-04-29 West Coast (WCU) 5 1258 5 2 1269 0.1 Details
48 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
49 Western Cape Inter Regional 2023 (Blitz) Blitz 2023-03-17 2023-03-17 Eden (WEG) 5 1246.2 5 1 1184.5 -2.2 Details
50 Lower West Coast Primary Schools Prestige Championships 2023 (U13 Boys) Rapid 2023-03-04 2023-03-04 West Coast (WCU) 5 1246.2 5 4 1487.2 17.6 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 7
Wins 5
Draws 0
Losses 2
White 3
Black 4
White wins 2
Black wins 3
Score 5
Percent 71.4
Dp 182.1
AOR 1353.6
Performance 1535.8
Game statistics (History)
Games 327
Wins 178
Draws 20
Losses 129
White 165
Black 162
White wins 94
Black wins 84
Score 188
Percent 57.5
Dp 63.7
AOR 1317.7
Performance 1381.4
Rankings (Main)
National
Overall 2687
Gender 2301
Age group 352
Gender/Age 277
Provincial
Overall 827
Gender 673
Age group 115
Gender/Age 85
Regional
Overall 51
Gender 41
Age group 10
Gender/Age 7
Rankings (Standard)
National
Overall 2670
Gender 2257
Age group 365
Gender/Age 286
Provincial
Overall 765
Gender 603
Age group 109
Gender/Age 79
Regional
Overall 32
Gender 24
Age group 6
Gender/Age 4
Rankings (Rapid)
National
Overall 460
Gender 420
Age group 77
Gender/Age 64
Provincial
Overall 230
Gender 204
Age group 40
Gender/Age 32
Regional
Overall 38
Gender 29
Age group 11
Gender/Age 8
Rankings (Blitz)
National
Overall 206
Gender 197
Age group 11
Gender/Age 10
Provincial
Overall 79
Gender 75
Age group 3
Gender/Age 3
Regional
Overall 2
Gender 1
Age group 1
Gender/Age 1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 7
Score 5
Percent 71.4
Aor 1353.6
Dp 182.1
Prat 1535.8
Performance (12 months)
Games 45
Score 25
Percent 55.6
Aor 1370.2
Dp 47.2
Prat 1417.5
Performance (History)
Games 327
Score 188
Percent 57.5
Aor 1317.7
Dp 63.7
Prat 1381.4
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 Njokweni, L (Llyabona) 5 3 2 WCCI Open 2023 (Blitz) Deep Blue Open 2025 (A) Details
Overall 4 Schroeder, L (Liam) 5 2 3 West Coast Chess Open 2022 (U13 Boys) West Coast And Mykonos Open 2025 (Open) Details
Overall 5 Ellman, A (Andries) 5 2 3 Deep Blue CC Blitz 2024 (Juniors) Lambertsbay Youth Open 2024 (Elite) Details
Standard 1 Siebritz, N (Noelle) 3 2 1 South African Open Chess Championship 2024 (C) Deep Blue Open 2025 (A) Details
Standard 2 Prinsloo, L (Lyle) 3 3 0 Western Cape Closed Championship 2022 (U12) Western Cape PS Individuals Championship 2024 (U13 Boys) Details
Standard 3 Duiker, P (Phillip) 2 1 1 West Coast Open 2022 (Open) West Coast Open 2023 (Elite) Details
Standard 4 Smith, Z (Zion) 2 0 2 Western Cape PS Individuals 2023 (U13 Boys) Western Cape PS Individuals Championship 2024 (U13 Boys) Details
Standard 5 Schoeman, M (Mischke) 2 1 1 Western Cape Closed Championship 2022 (U12) Deep Blue Open 2025 (A) 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 Ellman, A (Anne-Belle) 4 2 2 Youth Day 1 2023 (Elite) Lambertsbay Youth Open 2024 (Elite) Details
Rapid 3 Visagie, C (Christopher) 4 1 3 Onder-Weskus Top Skole 2022 (O13 Seuns) West Coast League 2026 (B) Details
Rapid 4 Arendse, Q (Quinwinne) 4 3 1 St Helenabaai Open 2023 (Elite) Lower West Coast Prestige 2025 (U15 Boys) Details
Rapid 5 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
Blitz 1 Ellman, A (Anne-Belle) 5 1 4 Deep Blue CC Blitz 2024 (Juniors) Deep Blue CC May Blitz 2024 Details
Blitz 2 Siebritz, N (Noelle) 4 3 1 Deep Blue CC Blitz 2024 (Juniors) Deep Blue Chess Club April Blitz 2024 Details
Blitz 3 Ellman, A (Andries) 4 2 2 Deep Blue CC Blitz 2024 (Juniors) Deep Blue CC May Blitz 2024 Details
Blitz 4 Wehr, C (Corbin) 4 2 2 Deep Blue CC Blitz 2024 (Juniors) Deep Blue CC May Blitz 2024 Details
Blitz 5 Stoffberg, M (Mikaeel) 3 2 1 Deep Blue February Blitz Juniors 2024 Deep Blue CC May Blitz 2024 Details