Williamson, Kenneth
Current rating: 1550
Record: 10-8
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 182 | Waugh, Marcus (1535) | Lost 0-2 | -191591 |
| 2sealed | 248 | Reyes, Rommel-Edward (1449) | Lost 0-2 | -211570 |
| 3sealed | 332 | Cuyar, Christopher (1467) | Lost 0-2 | -201550 |
| average opponent: 1484record: 0-3 | new rating: 1550 | |||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 641 | Czosek, Drew (1481) | Won 2-0 | +181518 |
| 2standard | 600 | Cook, Alexander (1519) | Lost 0-2 | -181500 |
| 3standard | 817 | Gallagher, Greg (1501) | Won 2-0 | +181518 |
| 4standard | 784 | Wilks, Andrew (1519) | Lost 1-2 | -181500 |
| 5standard | 756 | Cooper, Mitchell (1378) | Won 2-0 | +161516 |
| 6standard | 627 | Kaiser, Taylor (1582) | Won 2-0 | +191535 |
| 7standard | 644 | Petersen, Chase (1592) | Won 2-1 | +191554 |
| 8standard | 611 | Iden, Shawn (1507) | Won 2-0 | +171571 |
| 9standard | 547 | Ravanello, Trevor (1575) | Won 2-1 | +181589 |
| 10standard | 76 | Lowry, William (2051) | Won 2-1 | +261615 |
| 11standard | 41 | Weihe, Sean (1799) | Lost 1-2 | -151600 |
| 12standard | 54 | Gross, Mitchell (1684) | Won 2-0 | +201620 |
| 13standard | 58 | Sigrist, Mike (1912) | Lost 0-2 | -131607 |
| 14standard | 52 | Freedman, Henry (1616) | Lost 0-2 | -181589 |
| 15standard | 71 | Calcano, Christian (1764) | Won 2-1 | +211610 |
| average opponent: 1632record: 10-5 | new rating: 1610 | |||