Player Page

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: 2024/04/13 (6 days ago)
Ratings
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 rating1392.0
Curent Weighted rating1322.0
Curent Weighted performance1288.4
Current official/published rating (highest between Raw, WR and WP)1392.0
Current floor (min rating allowed)907.7
Current highest rating achieved1407.7
Current K-factor32
Games played this month10
Score (S)6.5
Expected score (We)5.69
Difference (S-We)0.81
Current Raw change (no limits, including tournament time weight)-12.8
Current min/max change allowed (with limits)±126.1
Current Raw change used (final)-12.8
Projected new Raw rating1379.2
Projected new Weighed rating1329.0
Projected new Weighted performance1288.4
Projected new official/published rating (highest between new Raw, new WR and new WP)1379.2
Projected effective change (new Official - current Official)-12.8
Projected new highest rating1407.7
Projected new floor907.7
Projected new K-facor32
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 rating1292.3
Curent Weighted rating1272.2
Curent Weighted performance1222.2
Current official/published rating (highest between Raw, WR and WP)1292.3
Current floor (min rating allowed)800.6
Current highest rating achieved1300.6
Current K-factor36
Games played this month0
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)±145.4
Current Raw change used (final)0.0
Projected new Raw rating1292.3
Projected new Weighed rating1275.2
Projected new Weighted performance1222.2
Projected new official/published rating (highest between new Raw, new WR and new WP)1292.3
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1300.6
Projected new floor800.6
Projected new K-facor36
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 rating1517.4
Curent Weighted rating1340.6
Curent Weighted performance1507.9
Current official/published rating (highest between Raw, WR and WP)1517.4
Current floor (min rating allowed)1017.4
Current highest rating achieved1517.4
Current K-factor32
Games played this month5
Score (S)1.5
Expected score (We)3.47
Difference (S-We)-1.97
Current Raw change (no limits, including tournament time weight)-63.0
Current min/max change allowed (with limits)±105.5
Current Raw change used (final)-63.0
Projected new Raw rating1454.4
Projected new Weighed rating1353.2
Projected new Weighted performance1507.9
Projected new official/published rating (highest between new Raw, new WR and new WP)1507.9
Projected effective change (new Official - current Official)-9.5
Projected new highest rating1517.4
Projected new floor1017.4
Projected new K-facor32
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 rating1249.4
Curent Weighted rating1177.3
Curent Weighted performance1197.8
Current official/published rating (highest between Raw, WR and WP)1249.4
Current floor (min rating allowed)1017.4
Current highest rating achieved1347.0
Current K-factor36
Games played this month5
Score (S)5.0
Expected score (We)2.61
Difference (S-We)2.39
Current Raw change (no limits, including tournament time weight)86.0
Current min/max change allowed (with limits)±154.5
Current Raw change used (final)86.0
Projected new Raw rating1335.4
Projected new Weighed rating1189.9
Projected new Weighted performance1197.8
Projected new official/published rating (highest between new Raw, new WR and new WP)1335.4
Projected effective change (new Official - current Official)+86.0
Projected new highest rating1347.0
Projected new floor1017.4
Projected new K-facor36
Tournaments
Tournament: Deep Blue Open 2024 (Elite)
Start: 2024/04/13  End: 2024/04/13  Host: WCU  Type: Rapid   Time: 35  Time weight: 0.66  Rounds: 5
Games: 5  Score: 1.5
Main rating: 1392.0  Rating gain/loss: -24.1
Type rating: 1517.4  Rating gain/loss: -63.0
Analysis
Tournament: Deep Blue March Blitz 2024
Start: 2024/03/27  End: 2024/03/27  Host: WCU  Type: Blitz   Time: 5  Time weight: 0.18  Rounds: 5
Games: 5  Score: 5.0
Main rating: 1392.0  Rating gain/loss: 11.2
Type rating: 1249.4  Rating gain/loss: 86.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
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
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
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
29 West Coast Primary Schools Grand Challenge League 2023 (Primary School) 2023/10/21 2023/10/21 West Coast (WCU) Rapid 15 0.39 5 5 3.5 1265.2 1223.7 Analysis
28 Basil Ellman Rapid 2023 (C) 2023/09/30 2023/09/30 West Coast (WCU) Rapid 30 0.60 5 5 1.0 1322.3 1349.8 Analysis
27 Western Cape Closed Championship 2023 (D) 2023/09/24 2023/09/25 Cape Town (WCT) Standard 90 0.94 6 6 3.0 1322.3 1280.1 Analysis
26 Deep Blue Open 2023 (Elite) 2023/09/16 2023/09/16 West Coast (WCU) Rapid 28 0.58 5 5 1.0 1322.3 1349.8 Analysis
25 CW Top Schools 2023 (Advanced) 2023/08/11 2023/08/13 West Coast (WCU) Standard 90 0.94 6 6 2.0 1350.4 1300.6 Analysis
24 Pedro Booyse Top Schools 2023 (U13) 2023/07/29 2023/07/29 West Coast (WCU) Standard 60 0.83 5 5 3.0 1333.1 1269.9 Analysis
23 Youth Day 1 2023 (Elite) 2023/06/17 2023/06/17 West Coast (WCU) Rapid 33 0.64 5 5 2.0 1378.3 1397.5 Analysis
22 Lower West Coast Top Schools Championships 2023 (U13) 2023/06/10 2023/06/10 West Coast (WCU) Rapid 30 0.60 5 5 3.0 1378.3 1397.5 Analysis
21 West Coast Open 2023 (Elite) 2023/05/20 2023/06/03 West Coast (WCU) Standard 65 0.85 5 5 2.0 1378.3 1285.4 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 49 33 3 13 34.5 70.4 173.5 1299.7 1473.1
White 25 18 3 4 19.5 78.0 238.0 1290.0 1528.0
Black 24 15 0 9 15.0 62.5 106.3 1309.8 1416.0
Standard All 4 1 0 3 1.0 25.0 -212.5 1518.3 1305.8
White 2 1 0 1 1.0 50.0 0.0 1524.5 1524.5
Black 2 0 0 2 0.0 0.0 -425.0 1512.3 1087.3
Rapid All 19 12 2 5 13.0 68.4 156.6 1275.5 1432.1
White 11 7 2 2 8.0 72.7 193.2 1290.3 1483.5
Black 8 5 0 3 5.0 62.5 106.3 1255.1 1361.4
Blitz All 26 20 1 5 20.5 78.8 245.2 1283.7 1528.9
White 12 10 1 1 10.5 87.5 318.8 1250.6 1569.3
Black 14 10 0 4 10.0 71.4 182.1 1312.1 1494.2
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 205 107 10 88 112.0 54.6 39.4 1306.9 1346.3
White 102 56 6 40 59.0 57.8 66.7 1294.9 1361.5
Black 103 51 4 48 53.0 51.5 12.4 1318.8 1331.1
Standard All 56 24 2 30 25.0 44.6 -45.5 1356.1 1310.6
White 29 13 1 15 13.5 46.6 -29.3 1376.1 1346.8
Black 27 11 1 15 11.5 42.6 -63.0 1334.6 1271.7
Rapid All 113 60 7 46 63.5 56.2 52.7 1279.9 1332.5
White 56 31 4 21 33.0 58.9 75.9 1261.2 1337.1
Black 57 29 3 25 30.5 53.5 29.8 1298.2 1328.0
Blitz All 36 23 1 12 23.5 65.3 129.9 1315.1 1444.9
White 17 12 1 4 12.5 73.5 200.0 1267.3 1467.3
Black 19 11 0 8 11.0 57.9 67.1 1357.9 1425.0
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 206055118 Ellman, A (Anne-Belle) 5 4.5 4 1 0 90.0 1361.1 340.0 1701.1 View list
2 1120153777 Wehr, C (Corbin) 4 4.0 4 0 0 100.0 1346.3 425.0 1771.3 View list
3 206077294 Galant, R (Rozaan) 4 1.0 1 0 3 25.0 1317.0 -212.5 1104.5 View list
4 1090096311 Schroeder, L (Liam) 4 1.0 1 0 3 25.0 1282.0 -212.5 1069.5 View list
5 2100142543 Love, C (Celine) 4 0.5 0 1 3 12.5 1318.9 -318.8 1000.1 View list
6 1100138326 Koopman, T (Tyler) 4 0.0 0 0 4 0.0 1304.7 -425.0 879.7 View list
7 1060099677 Njokweni, L (Llyabona) 4 0.0 0 0 4 0.0 1337.7 -425.0 912.7 View list
8 2110159903 Siebritz, N (Noelle) 3 3.0 3 0 0 100.0 1368.2 425.0 1793.2 View list
9 1090105088 Williams, C (Clarance-John) 3 2.0 2 0 1 66.7 1274.8 141.7 1416.4 View list
10 109093484 Duiker, P (Phillip) 3 1.5 1 1 1 50.0 1285.1 0.0 1285.1 View list
11 1100103503 Arendse, Q (Qnwinne) 3 1.0 1 0 3 33.3 1296.9 -141.7 1155.2 View list
12 1120139043 Klaasens, J (Jermaine) 3 0.5 0 1 2 16.7 1225.3 -283.3 941.9 View list
13 1060096290 Kariem, S (Shakir) 3 0.0 0 0 3 0.0 1315.6 -425.0 890.6 View list
14 109090543 Visagie, C (Christopher) 3 0.0 0 0 3 0.0 1287.9 -425.0 862.9 View list
15 1110157832 Adams, T (Tyler) 2 2.0 2 0 0 100.0 1393.0 425.0 1818.0 View list
16 1100142259 Adams, J (Jenito) 2 2.0 2 0 0 100.0 1318.2 425.0 1743.2 View list
17 1060130313 Davids, C (Cleverton) 2 2.0 2 0 0 100.0 1246.5 425.0 1671.5 View list
18 1110139098 Diergaardt, M (Maczayn) 2 2.0 2 0 0 100.0 1210.6 425.0 1635.6 View list
19 1120100598 Ellman, A (Andries) 2 2.0 2 0 0 100.0 1356.3 425.0 1781.3 View list
20 209077302 Ellman, E (Elle-Marie) 2 2.0 2 0 0 100.0 1356.3 425.0 1781.3 View list