PLAYER PAGE
Vivian Onyekwere
2090157258Ekurhuleni (GE)Personal
Main rating
| Rating | 1293.6 |
| K-factor | 36 |
| Floor | 824.1 |
| Highest | 1334 (2025-11-01) |
| Min/Max +/- allowed | 137 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1227 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1293.6 |
| K-factor | 36 |
| Floor | 824.1 |
| Highest | 1334 (2025-11-01) |
| Min/Max +/- allowed | 137 |
Standard rating
| Rating | 1302.8 |
| K-factor | 36 |
| Floor | 836 |
| Highest | 1336 (2025-11-01) |
| Min/Max +/- allowed | 136.6 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1227 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1302.8 |
| K-factor | 36 |
| Floor | 836 |
| Highest | 1336 (2025-11-01) |
| Min/Max +/- allowed | 136.6 |
Rapid rating
| Rating | 1188.8 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1050.9 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1188.8 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Blitz rating
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 0 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1200 |
| K-factor | 36 |
| Floor | 700 |
| Highest | 1200 (2018-10-01) |
| Min/Max +/- allowed | 165.8 |
Rating Graph
Tournaments
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| # | Tournament | Type | Start | End | Host | Rounds | Rating | Games | Score | Perform | Rat+/- | Details |
| 1 | Gauteng Inter-Region at Emerald Resort 2025 (U20) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1323.8 | 5 | 0.5 | 1164.5 | 0 | Details |
| 2 | 2025 Gauteng Top Schools Teams (U19 Girls) | Standard | 2025-08-30 | 2025-08-30 | Tshwane (GTP) | 5 | 1245.1 | 5 | 5 | 1700.3 | 0 | Details |
| 3 | St Peters College Sports & Cultural Festival 2025 | Standard | 2025-09-19 | 2025-09-20 | Johannesburg Metro (GJM) | 6 | 1251.8 | 4 | 2 | 1261.3 | 0 | Details |
| 4 | Tshwane Chess Club Clash 2025 (Ladies) | Standard | 2025-09-13 | 2025-09-13 | Tshwane (GTP) | 5 | 1251.8 | 4 | 1 | 1214.2 | 0 | Details |
| 5 | Ekurhuleni Trials 2025 (C) | Standard | 2025-07-26 | 2025-07-26 | Ekurhuleni (GE) | 5 | 1244.4 | 5 | 2 | 1294.9 | 0 | Details |
| 6 | Moja Chess Extravaganza 2025 (Ladies) | Classical | 2025-04-26 | 2025-05-01 | Johannesburg Metro (GJM) | 9 | 1206.9 | 9 | 4.5 | 1313 | 0 | Details |
| 7 | Chess Molecules Open Tournament 2025 (B) | Rapid | 2025-04-19 | 2025-04-19 | Johannesburg Metro (GJM) | 5 | 1189.2 | 5 | 2.5 | 1322 | 0 | Details |
| 8 | Gauteng Inter-Region at UJ 2024 (U18 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1185.1 | 5 | 1.5 | 1198.3 | 0 | Details |
| 9 | Gauteng Top Schools 2024 (U15 Girls) | Rapid | 2024-10-05 | 2024-10-05 | Ekurhuleni (GE) | 5 | 1138.1 | 5 | 4 | 1468.9 | 0 | Details |
| 10 | Chess Molecules Open Chess Tournament 2024 (High School Girls) | Rapid | 2024-06-15 | 2024-06-15 | Johannesburg Metro (GJM) | 5 | 1173.4 | 4 | 0.5 | 896 | 0 | Details |
| 11 | Ekurhuleni Trails 1 2024 (U16) | Standard | 2024-06-01 | 2024-06-01 | Ekurhuleni (GE) | 5 | 1173.4 | 5 | 1.5 | 1128.9 | 0 | Details |
| 12 | Chess is My Lifestyle 2023 (High School Girls) | Rapid | 2023-12-09 | 2023-12-09 | Johannesburg Metro (GJM) | 5 | 1201 | 5 | 1.5 | 992.5 | 0 | Details |
| 13 | Chess Molecules Rapid 2023 (High School Girls) | Rapid | 2023-09-23 | 2023-09-23 | Ekurhuleni (GE) | 5 | 1198 | 4 | 2 | 1228.2 | 0 | Details |
| 14 | 2023 Gauteng Top Schools (U15 Girls) | Standard | 2023-08-19 | 2023-08-19 | West Rand (GWR) | 5 | 1189.6 | 5 | 2.5 | 1232.7 | 0 | Details |
| 15 | Chess Molecules 16 June Tournament 2023 (High School Girls) | Rapid | 2023-06-16 | 2023-06-16 | Ekurhuleni (GE) | 5 | 1200 | 5 | 2 | 1112 | 0 | Details |
Game statistics ( )
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics ()
| Games | 0 |
| Wins | 0 |
| Draws | 0 |
| Losses | 0 |
| White | 0 |
| Black | 0 |
| White wins | 0 |
| Black wins | 0 |
| Score | 0 |
| Percent | 0 |
| Dp | 0 |
| AOR | 0 |
| Performance | 0 |
Game statistics (History)
| Games | 75 |
| Wins | 29 |
| Draws | 8 |
| Losses | 38 |
| White | 37 |
| Black | 38 |
| White wins | 13 |
| Black wins | 16 |
| Score | 33 |
| Percent | 44 |
| Dp | -51 |
| AOR | 1294.9 |
| Performance | 1243.9 |
Rankings (Main)
| National | |
| Overall | 6221 |
| Gender | 1086 |
| Age group | 975 |
| Gender/Age | 187 |
| Provincial | |
| Overall | 2101 |
| Gender | 365 |
| Age group | 366 |
| Gender/Age | 62 |
| Regional | |
| Overall | 424 |
| Gender | 91 |
| Age group | 81 |
| Gender/Age | 19 |
Rankings (Standard)
| National | |
| Overall | 5267 |
| Gender | 944 |
| Age group | 863 |
| Gender/Age | 163 |
| Provincial | |
| Overall | 1894 |
| Gender | 335 |
| Age group | 346 |
| Gender/Age | 62 |
| Regional | |
| Overall | 352 |
| Gender | 75 |
| Age group | 71 |
| Gender/Age | 16 |
Rankings (Rapid)
| National | |
| Overall | 4902 |
| Gender | 1137 |
| Age group | 682 |
| Gender/Age | 161 |
| Provincial | |
| Overall | 925 |
| Gender | 212 |
| Age group | 132 |
| Gender/Age | 36 |
| Regional | |
| Overall | 329 |
| Gender | 109 |
| Age group | 50 |
| Gender/Age | 16 |
Rankings (Blitz)
| National | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Provincial | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
| Regional | |
| Overall | -1 |
| Gender | -1 |
| Age group | -1 |
| Gender/Age | -1 |
Performance ( )
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance ()
| Games | 0 |
| Score | 0 |
| Percent | 0 |
| Aor | 0 |
| Dp | 0 |
| Prat | 0 |
Performance (12 months)
| Games | 37 |
| Score | 17.5 |
| Percent | 47.3 |
| Aor | 1350.7 |
| Dp | -23 |
| Prat | 1327.8 |
Performance (History)
| Games | 75 |
| Score | 33 |
| Percent | 44 |
| Aor | 1294.9 |
| Dp | -51 |
| Prat | 1243.9 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Kekane, T (Tshireketso) | 2 | 1 | 1 | Chess Molecules Rapid 2023 (High School Girls) | Moja Chess Extravaganza 2025 (Ladies) | Details |
| Overall | 2 | Yalcoue, Z (Zenebou) | 2 | 1 | 1 | Chess Molecules Rapid 2023 (High School Girls) | Chess is My Lifestyle 2023 (High School Girls) | Details |
| Overall | 3 | Moabi, O (Olerato) | 2 | 1 | 1 | Moja Chess Extravaganza 2025 (Ladies) | Gauteng Inter-Region at Emerald Resort 2025 (U20) | Details |
| Overall | 4 | Kiruri, C (Cynthia) | 2 | 1 | 1 | Chess is My Lifestyle 2023 (High School Girls) | Chess Molecules Open Chess Tournament 2024 (High School Girls) | Details |
| Overall | 5 | Bennett, J (Jemmah) | 2 | 1 | 1 | Chess Molecules 16 June Tournament 2023 (High School Girls) | Chess Molecules Open Tournament 2025 (B) | Details |
| Standard | 1 | Moabi, O (Olerato) | 2 | 1 | 1 | Moja Chess Extravaganza 2025 (Ladies) | Gauteng Inter-Region at Emerald Resort 2025 (U20) | Details |
| Rapid | 1 | Yalcoue, Z (Zenebou) | 2 | 1 | 1 | Chess Molecules Rapid 2023 (High School Girls) | Chess is My Lifestyle 2023 (High School Girls) | Details |
| Rapid | 2 | Kiruri, C (Cynthia) | 2 | 1 | 1 | Chess is My Lifestyle 2023 (High School Girls) | Chess Molecules Open Chess Tournament 2024 (High School Girls) | Details |
| Rapid | 3 | Bennett, J (Jemmah) | 2 | 1 | 1 | Chess Molecules 16 June Tournament 2023 (High School Girls) | Chess Molecules Open Tournament 2025 (B) | Details |