Player Page

Meng, Y (Yufei)
Dob: 2013/05/28 (U12)
Gender: Female
Chess SA id: 2130152476
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s):
Last active: 2024/03/02 (118 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 rating1211.6
Current Weighted rating1195.0
Current Weighted performance1107.9
Current official/published rating (highest between Raw, WR and WP)1211.6
Current highest rating achieved1211.6
Current floor (min rating allowed)711.6
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)±163.1
Current Raw change used (final)0.0
Projected new Raw rating1211.6
Projected new Weighed rating1099.4
Projected new Weighted performance1107.9
Projected new final Raw rating (if new WP > new Raw)1211.6
Projected new highest rating1211.6
Projected new floor711.6
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1211.6
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 rating1221.0
Current Weighted rating1197.7
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1221.0
Current highest rating achieved1221.0
Current floor (min rating allowed)721.0
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)±160.9
Current Raw change used (final)0.0
Projected new Raw rating1221.0
Projected new Weighed rating1101.9
Projected new Weighted performance1036.8
Projected new final Raw rating (if new WP > new Raw)1221.0
Projected new highest rating1221.0
Projected new floor721.0
Projected new K-facor36
Projected new official/published rating (highest between new Raw, new WR and new WP)1221.0
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 rating1183.4
Current Weighted rating1195.0
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)1195.0
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)±169.8
Current Raw change used (final)0.0
Projected new Raw rating1183.4
Projected new Weighed rating1099.2
Projected new Weighted performance361.4
Projected new final Raw rating (if new WP > new Raw)1183.4
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)1183.4
Projected effective change (new Official - current Official)-11.6
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
2 JMC Unika School Tournament 2024 (D) 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1182.7 1188.2 Analysis
1 Chess Power House 1st Rapid 2024 (B) 2024/02/24 2024/02/24 Johannesburg Metro (GJM) Rapid 20 0.47 5 5 2.0 1188.0 1200.0 Analysis
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
5 JMC Unika School Tournament 2024 (D) 2024/03/02 2024/03/02 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1182.7 1188.2 Analysis
4 Chess Power House 1st Rapid 2024 (B) 2024/02/24 2024/02/24 Johannesburg Metro (GJM) Rapid 20 0.47 5 5 2.0 1188.0 1200.0 Analysis
3 GoForChess Junior Chess Championship Grayston 2023 (Seniors) 2023/07/16 2023/07/16 Johannesburg Metro (GJM) Standard 60 0.83 5 5 2.0 1198.6 1200.4 Analysis
2 Knight Riders Youth Day 2023 (U12) 2023/06/16 2023/06/16 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1189.0 1188.4 Analysis
1 JMC 1 St Peters 2023 (D) 2023/03/18 2023/03/18 Johannesburg Metro (GJM) Standard 60 0.83 5 5 3.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 10 5 0 5 5.0 50.0 0.0 1228.8 1228.8
White 4 1 0 3 1.0 25.0 -212.5 1197.2 984.7
Black 6 4 0 2 4.0 66.7 141.7 1249.9 1391.6
Standard All 5 3 0 2 3.0 60.0 85.0 1240.0 1325.0
White 2 0 0 2 0.0 0.0 -425.0 1300.0 875.0
Black 3 3 0 0 3.0 100.0 425.0 1200.0 1625.0
Rapid All 5 2 0 3 2.0 40.0 -85.0 1217.6 1132.6
White 2 1 0 1 1.0 50.0 0.0 1094.3 1094.3
Black 3 1 0 2 1.0 33.3 -141.7 1299.8 1158.1
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 25 13 0 12 13.0 52.0 17.0 1181.4 1198.4
White 12 5 0 7 5.0 41.7 -70.8 1172.1 1101.3
Black 13 8 0 5 8.0 61.5 98.1 1190.0 1288.1
Standard All 20 11 0 9 11.0 55.0 42.5 1172.4 1214.9
White 10 4 0 6 4.0 40.0 -85.0 1187.7 1102.7
Black 10 7 0 3 7.0 70.0 170.0 1157.1 1327.1
Rapid All 5 2 0 3 2.0 40.0 -85.0 1217.6 1132.6
White 2 1 0 1 1.0 50.0 0.0 1094.3 1094.3
Black 3 1 0 2 1.0 33.3 -141.7 1299.8 1158.1
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 2110133943 Kalmek, M (Mia) 1 1.0 1 0 0 100.0 1198.6 425.0 1623.6 View list
2 1120192079 Chirimuta, T (Troy Gabriel) 1 1.0 1 0 0 100.0 1188.0 425.0 1613.0 View list
3 1120152458 Chadalavada, B (Bhaarghavarama) 1 1.0 1 0 0 100.0 1189.0 425.0 1614.0 View list
4 1140148603 Brits, E (Etienne) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
5 1100111983 Ngqweqwe, S (Sanele) 1 1.0 1 0 0 100.0 1188.0 425.0 1613.0 View list
6 1120156407 Namane, B (Bokamoso) 1 1.0 1 0 0 100.0 1189.0 425.0 1614.0 View list
7 2130144302 Naicker, V (Victoria Angelique) 1 1.0 1 0 0 100.0 1189.0 425.0 1614.0 View list
8 1120143851 Milner, A (Aiden) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
9 1130300261 Sibanda, A (Andile) 1 1.0 1 0 0 100.0 1182.7 425.0 1607.7 View list
10 2120300259 Patimile, M (Mbali) 1 1.0 1 0 0 100.0 1182.7 425.0 1607.7 View list
11 1130158258 Tang, Z (Zilean) 1 1.0 1 0 0 100.0 1198.6 425.0 1623.6 View list
12 1150143819 Tabilo Lillo, M (Marcelo) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
13 1110300266 Velloen, D (Dean Hendrik) 1 1.0 1 0 0 100.0 1182.7 425.0 1607.7 View list
14 1120158259 Townsend, B (Brian) 1 0.0 0 0 1 0.0 1198.6 -425.0 773.6 View list
15 1130157337 Swanepoel, C (Christian) 1 0.0 0 0 1 0.0 1189.0 -425.0 764.0 View list
16 1110191342 Nieuwoudt, L (Lincoln) 1 0.0 0 0 1 0.0 1188.0 -425.0 763.0 View list
17 109076696 Ni, YS (Yi Shi) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 1130140204 Sehloho, T (Thandolwethu) 1 0.0 0 0 1 0.0 1198.6 -425.0 773.6 View list
19 2120143693 Prakash, M (Maisha) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
20 2120147298 Petersen, Farah 1 0.0 0 0 1 0.0 1188.0 -425.0 763.0 View list