PLAYER PAGE
Ruben Vermaak
1120140148Ekurhuleni (GE)Personal
Main rating
| Rating | 1251.8 |
| K-factor | 36 |
| Floor | 789 |
| Highest | 1289 (2025-01-01) |
| Min/Max +/- allowed | 146 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1107.7 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1251.8 |
| K-factor | 36 |
| Floor | 789 |
| Highest | 1289 (2025-01-01) |
| Min/Max +/- allowed | 146.1 |
Standard rating
| Rating | 1254.9 |
| K-factor | 36 |
| Floor | 789.6 |
| Highest | 1289.6 (2025-01-01) |
| Min/Max +/- allowed | 145.9 |
| Rating Change () | |
| Games | 0 |
| Score | 0 |
| We | 0 |
| SWe | 0 |
| Temp +/- | 0 |
| Penalties | 0 |
| Weight perform | 1124.2 |
| Final +/- | 0 |
| New Rating () | |
| Rating | 1254.9 |
| K-factor | 36 |
| Floor | 789.6 |
| Highest | 1289.6 (2025-01-01) |
| Min/Max +/- allowed | 145.9 |
Rapid rating
| Rating | 1199.7 |
| 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 | 1199.7 |
| 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 (U14 Candidates) | Standard | 2025-12-06 | 2025-12-07 | Sedibeng (GSV) | 5 | 1253.9 | 5 | 2.5 | 1236.4 | -2.6 | Details |
| 2 | Ekurhuleni Trials 2025 (E) | Standard | 2025-07-26 | 2025-07-26 | Ekurhuleni (GE) | 5 | 1254.5 | 5 | 2 | 1206.4 | -5.5 | Details |
| 3 | Ekurhuleni Trials 2025 (E) | Standard | 2025-05-24 | 2025-05-24 | Ekurhuleni (GE) | 5 | 1255.8 | 5 | 3 | 1309.1 | 4.5 | Details |
| 4 | CPH May 2025 (C) | Standard | 2025-05-03 | 2025-05-03 | Johannesburg Metro (GJM) | 5 | 1255.8 | 5 | 1 | 965 | -29 | Details |
| 5 | Chess Molecules Open Tournament 2025 (C) | Rapid | 2025-04-19 | 2025-04-19 | Johannesburg Metro (GJM) | 5 | 1286.6 | 5 | 1 | 1039 | -17.2 | Details |
| 6 | AHS Open Chess Tournament 2025 (D) | Standard | 2025-03-01 | 2025-03-01 | Tshwane (GTP) | 5 | 1289 | 5 | 3 | 1281.6 | -1.3 | Details |
| 7 | Gauteng Inter-Region at UJ 2024 (U14 Candidates) | Standard | 2024-12-07 | 2024-12-08 | Johannesburg Metro (GJM) | 5 | 1252.7 | 5 | 3 | 1431.7 | 18.9 | Details |
| 8 | Ekurhuleni Closed 2024 (U14) | Standard | 2024-09-21 | 2024-09-21 | Ekurhuleni (GE) | 5 | 1246.7 | 5 | 2.5 | 1289.8 | 3.3 | Details |
| 9 | Ekurhuleni Trails 2 2024 (U14) | Standard | 2024-07-27 | 2024-07-27 | Ekurhuleni (GE) | 5 | 1214.1 | 5 | 3 | 1406.8 | 18.1 | Details |
| 10 | 2024 Mid Gauteng Open Chess Tournament (U14) | Standard | 2024-05-02 | 2024-05-02 | Tshwane (GTP) | 5 | 1198 | 5 | 2 | 1284.7 | 9 | Details |
| 11 | Ekurhuleni Open 2024 (D) | Standard | 2024-04-06 | 2024-04-06 | Ekurhuleni (GE) | 5 | 1230.3 | 5 | 2 | 1002.7 | -17.9 | Details |
| 12 | 2024 Constantiapark Open (D2) | Standard | 2024-02-17 | 2024-02-17 | Tshwane (GTP) | 5 | 1267.4 | 5 | 2 | 1063.4 | -20.4 | Details |
| 13 | 2024 Gauteng Inter-Region Chess Championship (U12B) | Standard | 2024-01-13 | 2024-01-14 | Tshwane (GTP) | 5 | 1224.4 | 4 | 3 | 1493.9 | 23.8 | Details |
| 14 | Ekurhuleni Chess Spring Tournament 2023 (D) | Standard | 2023-09-23 | 2023-09-23 | Ekurhuleni (GE) | 5 | 1200.2 | 5 | 3 | 1332.8 | 13.6 | Details |
| 15 | Ekurhuleni Chess Trial 3 2023 (U12) | Standard | 2023-06-17 | 2023-06-17 | Ekurhuleni (GE) | 5 | 1228.3 | 5 | 1.5 | 1075.7 | -15.6 | Details |
| 16 | Ekhuruleni Chess Trials 1 2023 (U12) | Standard | 2023-03-25 | 2023-03-25 | Ekurhuleni (GE) | 5 | 1183.8 | 5 | 3 | 1404.8 | 22.1 | Details |
| 17 | Ekurhuleni Trials 2 2022 (U12) | Standard | 2022-05-28 | 2022-05-28 | Ekurhuleni (GE) | 5 | 1180.8 | 4 | 2 | 1200.2 | 1.5 | Details |
| 18 | Ekurhuleni Trials 1 2022 (U12) | Standard | 2022-04-23 | 2022-04-23 | Ekurhuleni (GE) | 5 | 1200 | 5 | 2 | 1095.5 | -9.6 | 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 | 88 |
| Wins | 40 |
| Draws | 3 |
| Losses | 45 |
| White | 46 |
| Black | 42 |
| White wins | 18 |
| Black wins | 22 |
| Score | 41.5 |
| Percent | 47.2 |
| Dp | -24.1 |
| AOR | 1250.3 |
| Performance | 1226.2 |
Rankings (Main)
| National | |
| Overall | 8565 |
| Gender | 6930 |
| Age group | 1527 |
| Gender/Age | 1175 |
| Provincial | |
| Overall | 2872 |
| Gender | 2325 |
| Age group | 522 |
| Gender/Age | 389 |
| Regional | |
| Overall | 633 |
| Gender | 486 |
| Age group | 127 |
| Gender/Age | 86 |
Rankings (Standard)
| National | |
| Overall | 7307 |
| Gender | 5843 |
| Age group | 1292 |
| Gender/Age | 978 |
| Provincial | |
| Overall | 2592 |
| Gender | 2078 |
| Age group | 485 |
| Gender/Age | 356 |
| Regional | |
| Overall | 508 |
| Gender | 382 |
| Age group | 110 |
| Gender/Age | 71 |
Rankings (Rapid)
| 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 |
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 | 20 |
| Score | 8.5 |
| Percent | 42.5 |
| Aor | 1243 |
| Dp | -63.8 |
| Prat | 1179.2 |
Performance (History)
| Games | 88 |
| Score | 41.5 |
| Percent | 47.2 |
| Aor | 1250.3 |
| Dp | -24.1 |
| Prat | 1226.2 |
Top 5 opponents most often played
| Type | # | Opponent | Games | White | Black | First tournament | Last tournament | Details |
| Overall | 1 | Waring, C (Caydence) | 2 | 1 | 1 | Ekurhuleni Closed 2024 (U14) | Ekurhuleni Trials 2025 (E) | Details |
| Overall | 2 | Buitendag, D (Darius) | 2 | 1 | 1 | Ekurhuleni Chess Trial 3 2023 (U12) | Ekurhuleni Trails 2 2024 (U14) | Details |
| Overall | 3 | Aucamp, A (Alexander Nicolai) | 2 | 1 | 1 | Ekurhuleni Trials 1 2022 (U12) | Ekurhuleni Chess Trial 3 2023 (U12) | Details |
| Overall | 4 | Voogt, A (Arno) | 2 | 2 | 0 | Ekhuruleni Chess Trials 1 2023 (U12) | Ekurhuleni Closed 2024 (U14) | Details |
| Overall | 5 | Chen, Y (Yuqi) | 2 | 2 | 0 | 2024 Mid Gauteng Open Chess Tournament (U14) | Ekurhuleni Trials 2025 (E) | Details |
| Standard | 1 | Waring, C (Caydence) | 2 | 1 | 1 | Ekurhuleni Closed 2024 (U14) | Ekurhuleni Trials 2025 (E) | Details |
| Standard | 2 | Buitendag, D (Darius) | 2 | 1 | 1 | Ekurhuleni Chess Trial 3 2023 (U12) | Ekurhuleni Trails 2 2024 (U14) | Details |
| Standard | 3 | Aucamp, A (Alexander Nicolai) | 2 | 1 | 1 | Ekurhuleni Trials 1 2022 (U12) | Ekurhuleni Chess Trial 3 2023 (U12) | Details |
| Standard | 4 | Voogt, A (Arno) | 2 | 2 | 0 | Ekhuruleni Chess Trials 1 2023 (U12) | Ekurhuleni Closed 2024 (U14) | Details |
| Standard | 5 | Chen, Y (Yuqi) | 2 | 2 | 0 | 2024 Mid Gauteng Open Chess Tournament (U14) | Ekurhuleni Trials 2025 (E) | Details |