Player Page

Onyekwere, V (Vivian)
Dob: 2009/11/27 (U16)
Gender: Female
Chess SA id: 2090157258
FIDE id:
Region: Ekurhuleni (GE)
Citizen: RSA
Title(s):
Last active: 2023/12/09 (162 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 rating1173.4
Curent Weighted rating1187.7
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1187.7
Current floor (min rating allowed)701.0
Current highest rating achieved1201.0
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)±172.2
Current Raw change used (final)0.0
Projected new Raw rating1173.4
Projected new Weighed rating1186.2
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1186.2
Projected effective change (new Official - current Official)-1.5
Projected new highest rating1201.0
Projected new floor701.0
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 rating1209.7
Curent Weighted rating1206.3
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1209.7
Current floor (min rating allowed)709.7
Current highest rating achieved1209.7
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)±163.5
Current Raw change used (final)0.0
Projected new Raw rating1209.7
Projected new Weighed rating1206.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1209.7
Projected effective change (new Official - current Official)=0.0
Projected new highest rating1209.7
Projected new floor709.7
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 rating1143.9
Curent Weighted rating1170.8
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1170.8
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
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)±179.6
Current Raw change used (final)0.0
Projected new Raw rating1143.9
Projected new Weighed rating1167.8
Projected new Weighted performance0.0
Projected new official/published rating (highest between new Raw, new WR and new WP)1167.8
Projected effective change (new Official - current Official)-3.0
Projected new highest rating1200.0
Projected new floor700.0
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 rating1200.0
Curent Weighted rating1200.0
Curent Weighted performance0.0
Current official/published rating (highest between Raw, WR and WP)1200.0
Current floor (min rating allowed)700.0
Current highest rating achieved1200.0
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 rating1200.0
Projected new Weighted performance
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
Projected new highest rating1200.0
Projected new floor700.0
Projected new K-facor36
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
4 Chess is My Lifestyle 2023 (High School Girls) 2023/12/09 2023/12/09 Johannesburg Metro (GJM) Rapid 30 0.60 5 5 1.5 1201.0 1184.9 Analysis
3 Chess Molecules Rapid 2023 (High School Girls) 2023/09/23 2023/09/23 Ekurhuleni (GE) Rapid 30 0.60 5 4 2.0 1198.0 1182.4 Analysis
2 2023 Gauteng Top Schools (U15 Girls) 2023/08/19 2023/08/19 West Rand (GWR) Standard 60 0.83 5 5 2.5 1189.6 1200.0 Analysis
1 Chess Molecules 16 June Tournament 2023 (High School Girls) 2023/06/16 2023/06/16 Ekurhuleni (GE) Rapid 30 0.60 5 5 2.0 1200.0 1200.0 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main 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
Standard 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
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 19 7 2 10 8.0 42.1 -67.1 1203.9 1136.8
White 9 3 1 5 3.5 38.9 -94.4 1197.9 1103.4
Black 10 4 1 5 4.5 45.0 -42.5 1209.3 1166.8
Standard All 5 2 1 2 2.5 50.0 0.0 1232.7 1232.7
White 2 1 0 1 1.0 50.0 0.0 1204.5 1204.5
Black 3 1 1 1 1.5 50.0 0.0 1251.5 1251.5
Rapid All 14 5 1 8 5.5 39.3 -91.1 1193.6 1102.5
White 7 2 1 4 2.5 35.7 -121.4 1196.0 1074.6
Black 7 3 0 4 3.0 42.9 -60.7 1191.2 1130.5
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 2070140167 Yalcoue, Z (Zenebou) 2 1.0 1 0 1 50.0 1199.5 0.0 1199.5 View list
2 1070191347 Obioha, C (Chiwendu) 1 1.0 1 0 0 100.0 1201.0 425.0 1626.0 View list
3 2080155630 Sibiya, T (Thandlowethu) 1 1.0 1 0 0 100.0 1189.6 425.0 1614.6 View list
4 2080161028 Rammoneng, K (Kabelo) 1 1.0 1 0 0 100.0 1189.6 425.0 1614.6 View list
5 2080157255 Greta, C (Carnelli) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
6 2090162461 Kekane, T (Tshireketso) 1 1.0 1 0 0 100.0 1198.0 425.0 1623.0 View list
7 2090157256 Marongwe, A (Anotida) 1 1.0 1 0 0 100.0 1200.0 425.0 1625.0 View list
8 2080145938 Mashatola, N (Nomvula Miriam) 1 0.5 0 1 0 50.0 1189.6 0.0 1189.6 View list
9 2090153970 Kiruri, C (Cynthia) 1 0.5 0 1 0 50.0 1201.0 0.0 1201.0 View list
10 2080146674 Oliver, R (Ruby) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
11 2100112830 Motaung, R (Retshepile) 1 0.0 0 0 1 0.0 1189.6 -425.0 764.6 View list
12 2080105770 Moodley, DD (Dhivya Dhanam) 1 0.0 0 0 1 0.0 1189.6 -425.0 764.6 View list
13 2070140159 Moila, K (Kamogelo Ntombi) 1 0.0 0 0 1 0.0 1201.0 -425.0 776.0 View list
14 2060099126 Malatji, L (Lethabo) 1 0.0 0 0 1 0.0 1201.0 -425.0 776.0 View list
15 2060133808 Mafinya, T (Thama) 1 0.0 0 0 1 0.0 1198.0 -425.0 773.0 View list
16 2080140157 Jain, C (Chesta) 1 0.0 0 0 1 0.0 1198.0 -425.0 773.0 View list
17 2080157253 Chan-Henry, S (Sophie) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list
18 2090157252 Bennett, J (Jemmah) 1 0.0 0 0 1 0.0 1200.0 -425.0 775.0 View list