Player Page

Zhang, Y (Yufeng)
Dob: 2016/12/27 (U10)
Gender: Male
Chess SA id: 1160190423
FIDE id:
Region: Tshwane (GTP)
Citizen: RSA
Title(s):
Last active: 2024/09/21 (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
Current Raw rating1278.7
Current Weighted rating1242.3
Current Weighted performance1197.3
Current official/published rating (highest between Raw, WR and WP)1278.7
Current highest rating achieved1358.7
Current floor (min rating allowed)858.7
Current K-factor36
Games played this month16
Score (S)6.5
Expected score (We)7.63
Difference (S-We)-1.06
Current Raw change (no limits, including tournament time weight)-38.1
Current min/max change allowed (with limits)±148.2
Current Raw change used (final)-38.1
Projected new Raw rating1240.6
Projected new Weighed rating1144.4
Projected new Weighted performance1198.9
Projected new final Raw rating (if new WP > new Raw)1240.6
Projected new highest rating1358.7
Projected new floor858.7
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1240.6
Projected effective change (new Official - current Official)-38.1
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 rating1262.5
Current Weighted rating1237.9
Current Weighted performance1197.3
Current official/published rating (highest between Raw, WR and WP)1262.5
Current highest rating achieved1355.0
Current floor (min rating allowed)855.0
Current K-factor36
Games played this month16
Score (S)6.5
Expected score (We)7.35
Difference (S-We)-0.85
Current Raw change (no limits, including tournament time weight)-30.6
Current min/max change allowed (with limits)±151.7
Current Raw change used (final)-30.6
Projected new Raw rating1231.9
Projected new Weighed rating1140.3
Projected new Weighted performance1198.9
Projected new final Raw rating (if new WP > new Raw)1231.9
Projected new highest rating1355.0
Projected new floor855.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1231.9
Projected effective change (new Official - current Official)-30.6
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 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
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
Tournament: Centurion Chess Open Tournament 2024 (U10)
Start: 2024/09/21  End: 2024/09/21  Host: GTP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 3.0
Main rating: 1278.7  Rating gain/loss: 20.0
Type rating: 1262.5  Rating gain/loss: 28.4
Analysis
Tournament: 2024 Curro Hazeldean High Open Chess Tournament (U10)
Start: 2024/09/07  End: 2024/09/07  Host: GTP  Type: Standard   Time: 60  Time weight: 0.83  Rounds: 5
Games: 5  Score: 2.0
Main rating: 1278.7  Rating gain/loss: -20.9
Type rating: 1262.5  Rating gain/loss: -23.0
Analysis
Tournament: 2024 Etienne Lewis (U10)
Start: 2024/08/30  End: 2024/09/01  Host: GTP  Type: Standard   Time: 90  Time weight: 0.94  Rounds: 6
Games: 6  Score: 1.5
Main rating: 1278.7  Rating gain/loss: -37.2
Type rating: 1262.5  Rating gain/loss: -36.0
Analysis
#TournamentStartEndHostTypeTimeWeightRnsGmsScrMainTypeAnalysis
16 Centurion Chess Open Tournament 2024 (U10) 2024/09/21 2024/09/21 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1278.7 1262.5 Analysis
15 2024 Curro Hazeldean High Open Chess Tournament (U10) 2024/09/07 2024/09/07 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1278.7 1262.5 Analysis
14 2024 Etienne Lewis (U10) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 6 1.5 1278.7 1262.5 Analysis
13 2024 Jacaranda Round Robin Open Chess Tournament (F) 2024/08/17 2024/08/17 Tshwane (GTP) Standard 60 0.83 5 5 0.0 1343.4 1337.0 Analysis
12 2024 Alekhine Open Chess Tournament (U10) 2024/08/09 2024/08/09 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1343.4 1337.0 Analysis
11 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U9A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1343.4 1337.0 Analysis
10 Menlopark Open Chess Tournament 2024 (U10) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1334.7 1323.7 Analysis
9 2024 Elise Steenkamp Open Chess Tournament (Bishops) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 3.5 1358.7 1355.0 Analysis
8 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (D) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1358.7 1355.0 Analysis
7 2024 Mid Gauteng Open Chess Tournament (U10) 2024/05/02 2024/05/02 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1316.5 1309.8 Analysis
6 2024 Silver Lakes Open Chess Tournament (E) 2024/04/20 2024/04/20 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1214.0 1215.8 Analysis
5 2024 KSNG CHess Academy Open Tournament (E) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1214.0 1215.8 Analysis
4 2024 Chris Greyling Open Chess Tournament (E) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1184.1 1179.8 Analysis
3 2024 Wynie Robbertse Chess Tournament (E) 2024/03/02 2024/03/02 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1184.1 1179.8 Analysis
2 2024 Blou Bul Open Chess Tournament (E) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1185.1 1181.6 Analysis
1 2024 Piet Robbertse Open Chess Tournament (E) 2024/02/03 2024/02/03 Tshwane (GTP) Standard 90 0.94 5 5 2.5 1185.1 1181.6 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
17 Centurion Chess Open Tournament 2024 (U10) 2024/09/21 2024/09/21 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1278.7 1262.5 Analysis
16 2024 Curro Hazeldean High Open Chess Tournament (U10) 2024/09/07 2024/09/07 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1278.7 1262.5 Analysis
15 2024 Etienne Lewis (U10) 2024/08/30 2024/09/01 Tshwane (GTP) Standard 90 0.94 7 6 1.5 1278.7 1262.5 Analysis
14 2024 Jacaranda Round Robin Open Chess Tournament (F) 2024/08/17 2024/08/17 Tshwane (GTP) Standard 60 0.83 5 5 0.0 1343.4 1337.0 Analysis
13 2024 Alekhine Open Chess Tournament (U10) 2024/08/09 2024/08/09 Tshwane (GTP) Standard 90 0.94 5 5 3.0 1343.4 1337.0 Analysis
12 D4 Tshwane South District Schools Teams Chess Tournament 2024 (U9A) 2024/08/03 2024/08/03 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1343.4 1337.0 Analysis
11 Menlopark Open Chess Tournament 2024 (U10) 2024/07/13 2024/07/13 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1334.7 1323.7 Analysis
10 2024 Elise Steenkamp Open Chess Tournament (Bishops) 2024/06/15 2024/06/15 Tshwane (GTP) Standard 90 0.94 5 5 3.5 1358.7 1355.0 Analysis
9 2024 Johannes Mabusela's 40th Birthday Chess Tournament F Section (D) 2024/06/01 2024/06/01 Tshwane (GTP) Standard 60 0.83 5 5 2.5 1358.7 1355.0 Analysis
8 2024 Mid Gauteng Open Chess Tournament (U10) 2024/05/02 2024/05/02 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1316.5 1309.8 Analysis
7 2024 Silver Lakes Open Chess Tournament (E) 2024/04/20 2024/04/20 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1214.0 1215.8 Analysis
6 2024 KSNG CHess Academy Open Tournament (E) 2024/04/06 2024/04/06 Tshwane (GTP) Standard 60 0.83 5 5 4.0 1214.0 1215.8 Analysis
5 2024 Chris Greyling Open Chess Tournament (E) 2024/03/16 2024/03/16 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1184.1 1179.8 Analysis
4 2024 Wynie Robbertse Chess Tournament (E) 2024/03/02 2024/03/02 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1184.1 1179.8 Analysis
3 2024 Blou Bul Open Chess Tournament (E) 2024/02/10 2024/02/10 Tshwane (GTP) Standard 60 0.83 5 5 3.0 1185.1 1181.6 Analysis
2 2024 Piet Robbertse Open Chess Tournament (E) 2024/02/03 2024/02/03 Tshwane (GTP) Standard 90 0.94 5 5 2.5 1185.1 1181.6 Analysis
1 Lardies Open Tournament 2023 (F) 2023/10/28 2023/10/28 Tshwane (GTP) Standard 60 0.83 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 81 43 4 34 45.0 55.6 47.2 1229.0 1276.2
White 41 26 3 12 27.5 67.1 145.1 1215.8 1361.0
Black 40 17 1 22 17.5 43.8 -53.1 1242.5 1189.4
Standard All 81 43 4 34 45.0 55.6 47.2 1229.0 1276.2
White 41 26 3 12 27.5 67.1 145.1 1215.8 1361.0
Black 40 17 1 22 17.5 43.8 -53.1 1242.5 1189.4
Rapid 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
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 86 45 4 37 47.0 54.7 39.5 1227.7 1267.2
White 44 27 3 14 28.5 64.8 125.6 1216.1 1341.7
Black 42 18 1 23 18.5 44.0 -50.6 1239.7 1189.1
Standard All 86 45 4 37 47.0 54.7 39.5 1227.7 1267.2
White 44 27 3 14 28.5 64.8 125.6 1216.1 1341.7
Black 42 18 1 23 18.5 44.0 -50.6 1239.7 1189.1
Rapid 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
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 1150149177 Kleynhans, M (Magnus) 3 1.0 1 0 2 33.3 1318.9 -141.7 1177.3 View list
2 2170191352 Kgwale, K (Keratilwe) 2 2.0 2 0 0 100.0 1214.0 425.0 1639.0 View list
3 2150157433 Westermann, I (Inge) 2 2.0 2 0 0 100.0 1297.6 425.0 1722.6 View list
4 2160162781 Westermann, Z (Zelri) 2 2.0 2 0 0 100.0 1231.9 425.0 1656.9 View list
5 1160300019 Zhu, H (Hengyu) 2 2.0 2 0 0 100.0 1246.3 425.0 1671.3 View list
6 1150136650 Coetzee, R (Riko) 2 1.5 1 1 0 75.0 1184.6 212.5 1397.1 View list
7 2150162780 Marais, L (Leja) 2 1.0 1 0 1 50.0 1246.3 0.0 1246.3 View list
8 2160159597 Rampersadh, M (Micah) 2 1.0 1 0 1 50.0 1318.7 0.0 1318.7 View list
9 2150151386 Rizvi, Z (Zara) 2 1.0 1 0 1 50.0 1297.6 0.0 1297.6 View list
10 1170162033 Sahoo, S (Shaurya) 2 1.0 1 0 1 50.0 1279.3 0.0 1279.3 View list
11 1150300425 Van Der Merwe, A (Abraham) 2 1.0 1 0 1 50.0 1184.1 0.0 1184.1 View list
12 1150190422 Li, J (Jiming) 2 0.0 0 0 2 0.0 1185.1 -425.0 760.1 View list
13 1160147672 Rocher, G (Gideon) 2 0.0 0 0 2 0.0 1192.0 -425.0 767.0 View list
14 1160148677 Roos, B (Benjamin) 2 0.0 0 0 2 0.0 1246.3 -425.0 821.3 View list
15 1150159694 Smit, J (Juanru) 2 0.0 0 0 2 0.0 1231.9 -425.0 806.9 View list
16 1160161737 Swanepoel, M (Marnu) 2 0.0 0 0 2 0.0 1184.6 -425.0 759.6 View list
17 1160152741 Botha, M (Marloux) 1 1.0 1 0 0 100.0 1214.0 425.0 1639.0 View list
18 1150302694 Coetzee, J (Juan) 1 1.0 1 0 0 100.0 1334.7 425.0 1759.7 View list
19 1150147657 Danzfuss, E (Edrich) 1 1.0 1 0 0 100.0 1184.1 425.0 1609.1 View list
20 1170149169 Barkhuizen, R (Reuben) 1 1.0 1 0 0 100.0 1358.7 425.0 1783.7 View list