Player Page

Zheng, Y (Yi)
Dob: 2011/07/19 (U14)
Gender: Male
Chess SA id: 1110140745
FIDE id:
Region: Cape Winelands (WCW)
Citizen: RSA
Title(s):
Last active: 2024/10/05 (65 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
Current Raw rating1391.4
Current Weighted rating1347.3
Current Weighted performance1271.2
Current official/published rating (highest between Raw, WR and WP)1391.4
Current highest rating achieved1422.1
Current floor (min rating allowed)922.1
Current K-factor32
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)±126.2
Current Raw change used (final)0.0
Projected new Raw rating1391.4
Projected new Weighed rating1241.4
Projected new Weighted performance1271.2
Projected new final Raw rating (if new WP > new Raw)1391.4
Projected new highest rating1422.1
Projected new floor922.1
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1391.4
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 rating1381.8
Current Weighted rating1328.5
Current Weighted performance1337.7
Current official/published rating (highest between Raw, WR and WP)1381.8
Current highest rating achieved1416.4
Current floor (min rating allowed)916.4
Current K-factor32
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)±128.0
Current Raw change used (final)0.0
Projected new Raw rating1381.8
Projected new Weighed rating1225.5
Projected new Weighted performance1337.7
Projected new final Raw rating (if new WP > new Raw)1381.8
Projected new highest rating1416.4
Projected new floor916.4
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1381.8
Projected effective change (new Official - current Official)=0.0
s
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 rating1363.4
Current Weighted rating1326.9
Current Weighted performance1297.2
Current official/published rating (highest between Raw, WR and WP)1363.4
Current highest rating achieved1432.0
Current floor (min rating allowed)932.0
Current K-factor32
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)±131.4
Current Raw change used (final)0.0
Projected new Raw rating1363.4
Projected new Weighed rating1220.9
Projected new Weighted performance1297.2
Projected new final Raw rating (if new WP > new Raw)1363.4
Projected new highest rating1432.0
Projected new floor932.0
Projected new K-facor32
Projected new official/published rating (highest between new Raw, new WR and new WP)1363.4
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 rating1200.0
Current Weighted rating1200.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1200.0
Current highest rating achieved1200.0
Current floor (min rating allowed)700.0
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)±165.8
Current Raw change used (final)0.0
Projected new Raw rating1200.0
Projected new Weighed rating1104.0
Projected new Weighted performance
Projected new final Raw rating (if new WP > new Raw)
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1200.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
13 Grant East Annual Primary School Invitational Chess Tournament 2024 (U13) 2024/10/05 2024/10/05 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1376.8 1377.0 Analysis
12 Chess Elevation Series -September 2024 (Open) 2024/09/20 2024/09/21 Cape Town (WCT) Standard 70 0.87 5 4 1.5 1405.5 1416.4 Analysis
11 Curro Durbanville Chess Rapid Open 2024 (Intermediate) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1422.1 1402.1 Analysis
10 Chess Elevation Series - July 2024 (Level 3) 2024/07/05 2024/07/06 Cape Town (WCT) Standard 70 0.87 5 5 3.5 1422.1 1411.0 Analysis
9 Rylib Winter Slam 2024 (Championship) 2024/06/19 2024/06/19 Cape Town (WCT) Rapid 20 0.47 6 6 1.5 1421.5 1432.0 Analysis
8 Cape Town Chess Federation Closed Chess Championships 2024 (U14) 2024/06/15 2024/06/16 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1421.5 1370.7 Analysis
7 4th BC Trials 2024 (U10B) 2024/06/08 2024/06/08 Buffalo City (EBC) Standard 60 0.83 5 0 0.0 1421.5 1370.7 Analysis
6 Cape Town Junior League Finals 2024 (U13 Open A) 2024/05/18 2024/05/18 Cape Town (WCT) Rapid 25 0.54 5 5 4.0 1373.0 1264.1 Analysis
5 Western Cape PS Individuals Championship 2024 (U13 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 3.0 1373.0 1368.6 Analysis
4 Cape Town Junior League - Qualifier 2 2024 (U13) 2024/04/20 2024/04/20 Cape Town (WCT) Rapid 25 0.54 6 4 4.0 1373.0 1264.1 Analysis
3 Cape Town Junior League Qualifier 2024 (U13 Open) 2024/04/06 2024/04/06 Cape Town (WCT) Rapid 25 0.54 6 6 5.0 1355.3 1206.8 Analysis
2 Cape Town Metro Schools Chess Closed Individuals 2024 (U13 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 5.0 1275.2 1286.9 Analysis
1 CT District East Schools Chess Individuals Trails 2024 (U13 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 4.0 1227.7 1237.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
25 Grant East Annual Primary School Invitational Chess Tournament 2024 (U13) 2024/10/05 2024/10/05 Cape Town (WCT) Standard 60 0.83 5 5 3.0 1376.8 1377.0 Analysis
24 Chess Elevation Series -September 2024 (Open) 2024/09/20 2024/09/21 Cape Town (WCT) Standard 70 0.87 5 4 1.5 1405.5 1416.4 Analysis
23 Curro Durbanville Chess Rapid Open 2024 (Intermediate) 2024/07/13 2024/07/13 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1422.1 1402.1 Analysis
22 Chess Elevation Series - July 2024 (Level 3) 2024/07/05 2024/07/06 Cape Town (WCT) Standard 70 0.87 5 5 3.5 1422.1 1411.0 Analysis
21 Rylib Winter Slam 2024 (Championship) 2024/06/19 2024/06/19 Cape Town (WCT) Rapid 20 0.47 6 6 1.5 1421.5 1432.0 Analysis
20 Cape Town Chess Federation Closed Chess Championships 2024 (U14) 2024/06/15 2024/06/16 Cape Town (WCT) Standard 70 0.87 6 6 4.0 1421.5 1370.7 Analysis
19 4th BC Trials 2024 (U10B) 2024/06/08 2024/06/08 Buffalo City (EBC) Standard 60 0.83 5 0 0.0 1421.5 1370.7 Analysis
18 Cape Town Junior League Finals 2024 (U13 Open A) 2024/05/18 2024/05/18 Cape Town (WCT) Rapid 25 0.54 5 5 4.0 1373.0 1264.1 Analysis
17 Western Cape PS Individuals Championship 2024 (U13 Boys) 2024/05/04 2024/05/05 West Coast (WCU) Standard 60 0.83 6 6 3.0 1373.0 1368.6 Analysis
16 Cape Town Junior League - Qualifier 2 2024 (U13) 2024/04/20 2024/04/20 Cape Town (WCT) Rapid 25 0.54 6 4 4.0 1373.0 1264.1 Analysis
15 Cape Town Junior League Qualifier 2024 (U13 Open) 2024/04/06 2024/04/06 Cape Town (WCT) Rapid 25 0.54 6 6 5.0 1355.3 1206.8 Analysis
14 Cape Town Metro Schools Chess Closed Individuals 2024 (U13 Boys) 2024/03/02 2024/03/03 Cape Town (WCT) Standard 60 0.83 6 6 5.0 1275.2 1286.9 Analysis
13 CT District East Schools Chess Individuals Trails 2024 (U13 Boys) 2024/02/03 2024/02/03 Cape Town (WCT) Standard 60 0.83 5 5 4.0 1227.7 1237.6 Analysis
12 Kraaifontein Open 2023 (Open) 2023/12/10 2023/12/10 Cape Town (WCT) Rapid 30 0.60 6 5 1.0 1306.8 1342.2 Analysis
11 Kraaifontein Open 2023 (U14) 2023/12/09 2023/12/09 Cape Town (WCT) Rapid 30 0.60 6 6 0.0 1306.8 1342.2 Analysis
10 Western Cape Closed Championship 2023 (U14) 2023/09/23 2023/09/23 Cape Town (WCT) Rapid 25 0.54 6 6 2.5 1314.4 1373.2 Analysis
9 Curro Durbanville Chess Open Rapid 2023 (U14) 2023/07/15 2023/07/15 Cape Town (WCT) Rapid 35 0.66 6 6 3.0 1332.0 1415.1 Analysis
8 WP Closed 2023 (U14) 2023/06/16 2023/06/17 Cape Town (WCT) Standard 70 0.87 6 6 3.0 1320.1 1193.6 Analysis
7 Rhenish Primary Tournament 2023 (U14) 2023/05/13 2023/05/13 Cape Winelands (WCW) Rapid 30 0.60 6 5 4.5 1283.6 1351.4 Analysis
6 Cape Town Open 2023 (U14) 2023/03/25 2023/03/25 Cape Town (WCT) Rapid 25 0.54 6 6 5.0 1241.2 1279.4 Analysis
12
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 64 39 5 20 41.5 64.8 126.2 1321.9 1448.1
White 33 21 3 9 22.5 68.2 154.5 1329.2 1483.8
Black 31 18 2 11 19.0 61.3 96.0 1314.1 1410.0
Standard All 37 22 4 11 24.0 64.9 126.4 1338.3 1464.7
White 17 10 3 4 11.5 67.6 150.0 1358.2 1508.2
Black 20 12 1 7 12.5 62.5 106.3 1321.5 1427.7
Rapid All 27 17 1 9 17.5 64.8 125.9 1299.4 1425.3
White 16 11 0 5 11.0 68.8 159.4 1298.5 1457.9
Black 11 6 1 4 6.5 59.1 77.3 1300.6 1377.9
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 129 69 10 50 74.0 57.4 62.6 1306.1 1368.7
White 65 39 5 21 41.5 63.8 117.7 1301.9 1419.6
Black 64 30 5 29 32.5 50.8 6.6 1310.5 1317.1
Standard All 54 29 5 20 31.5 58.3 70.8 1330.3 1401.1
White 24 14 3 7 15.5 64.6 124.0 1342.4 1466.3
Black 30 15 2 13 16.0 53.3 28.3 1320.6 1349.0
Rapid All 75 40 5 30 42.5 56.7 56.7 1288.7 1345.4
White 41 25 2 14 26.0 63.4 114.0 1278.2 1392.2
Black 34 15 3 16 16.5 48.5 -12.5 1301.5 1289.0
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
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 1110137370 Spence, B (Brian) 4 3.0 3 0 1 75.0 1312.6 212.5 1525.1 View list
2 1120140113 Guo, A (Aleks) 4 1.0 1 0 3 25.0 1278.3 -212.5 1065.8 View list
3 1110146858 Adolf, F (Feraydo) 2 2.0 2 0 0 100.0 1309.0 425.0 1734.0 View list
4 1110152912 Dainton, M (Michael) 2 2.0 2 0 0 100.0 1277.8 425.0 1702.8 View list
5 1130193355 Chilumba, C (Cornelius) 2 2.0 2 0 0 100.0 1364.2 425.0 1789.2 View list
6 2110138783 Sedick, S (Shafeeqa) 2 2.0 2 0 0 100.0 1266.0 425.0 1691.0 View list
7 1110148238 Tshenolo, T (Tsamai) 2 2.0 2 0 0 100.0 1232.5 425.0 1657.5 View list
8 1120118992 Van Zyl, F (Frede) 2 2.0 2 0 0 100.0 1213.8 425.0 1638.8 View list
9 2120118993 Webb, A (Amori) 2 2.0 2 0 0 100.0 1399.2 425.0 1824.2 View list
10 1100301933 Chen, H (Haoyu) 2 1.0 1 0 1 50.0 1413.8 0.0 1413.8 View list
11 2110150428 Kirthan, V (Vajra) 2 1.0 1 0 1 50.0 1364.2 0.0 1364.2 View list
12 1110108081 Muller, H (Helgard) 2 1.0 1 0 1 50.0 1280.7 0.0 1280.7 View list
13 1120137368 Sher, J (Jonah) 2 1.0 1 0 1 50.0 1255.7 0.0 1255.7 View list
14 2110130698 Sobada, A (Anelisa) 2 1.0 1 0 1 50.0 1331.3 0.0 1331.3 View list
15 1120150408 Rogov, E (Evgenij) 2 0.0 0 0 2 0.0 1364.2 -425.0 939.2 View list
16 1110102387 Smith, Z (Zion) 2 0.0 0 0 2 0.0 1345.6 -425.0 920.6 View list
17 1120147430 Booysen, O (Okuhle) 1 1.0 1 0 0 100.0 1236.2 425.0 1661.2 View list
18 1100141156 De Wet, C (Christo) 1 1.0 1 0 0 100.0 1241.2 425.0 1666.2 View list
19 1110140725 Davis, J (Joshua) 1 1.0 1 0 0 100.0 1283.6 425.0 1708.6 View list
20 1120150098 Arendse, V (Virgil) 1 1.0 1 0 0 100.0 1376.8 425.0 1801.8 View list