Powell, Philip R
Current rating: 1500
Record: 6-6
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 58 | Bishop, Stephen (1556) | Lost 0-2 | -181536 |
| 5sealed | 121 | Jolliffe, Jake (1539) | Lost 1-2 | -181518 |
| 6sealed | 138 | Xie, Charles (1518) | Lost 1-2 | -181500 |
| average opponent: 1538record: 0-3 | new rating: 1500 | |||
| Grand Prix Houston 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 114 | Crittell, Alvin J (1500) | Won 2-0 | +181518 |
| 2extended | 118 | Watson, DeQuan (1449) | Won 2-0 | +171535 |
| 3extended | 46 | Suarez, Andres (1538) | Lost 1-2 | -181517 |
| 4extended | 129 | Nevin, James (1604) | Lost 1-2 | -171500 |
| 5extended | 207 | Nguyen, Hansen (1484) | Won 2-0 | +181518 |
| 6extended | 138 | Chen, Michael (1487) | Won 2-0 | +181536 |
| 7extended | 110 | Doty, Landon (1522) | Lost 1-2 | -191517 |
| 8extended | 113 | Saidler, Shane (1516) | Won 2-0 | +181535 |
| 9extended | 83 | Jones, Andrew W (1553) | Won 2-1 | +191554 |
| average opponent: 1517record: 6-3 | new rating: 1554 | |||