Boyce, K J
Current rating: 1563
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 256 | Lewis, Cole (1500) | Won 2-0 | +181540 |
| 2sealed | 173 | Havener, Joshua (1500) | Won 2-0 | +171557 |
| 3sealed | 62 | Bartolomei, Iain (1834) | Lost 0-2 | -131544 |
| 4sealed | 320 | Woolley, Tyler (1543) | Won 2-0 | +181562 |
| 5sealed | 239 | Amato, Alex (1539) | Won 2-1 | +181580 |
| 6sealed | 144 | Pavelchak, Drew (1545) | Won 2-0 | +171597 |
| 7sealed | 72 | Vidugiris, Gaudenis (1774) | Lost 1-2 | -151582 |
| 8sealed | 131 | Dhanani, Ahmad (1520) | Lost 0-2 | -191563 |
| top | average opponent: 1594record: 5-3 | new rating: 1563 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 285 | McCourt, Zachary (1500) | Lost 0-2 | -181484 |
| 2sealed | 452 | Cyr, Zachary (1482) | Won 2-0 | +181502 |
| 3sealed | 211 | Thomson, Brandon (1500) | Won 2-0 | +181520 |
| 4sealed | 241 | McKenzie, Brendan (1520) | Won 2-1 | +181538 |
| 5sealed | 203 | Maros, Leonardo (1535) | Won 2-0 | +181556 |
| 6sealed | 107 | Shenhar, Shahar (1524) | Lost 0-2 | -181538 |
| 7sealed | 240 | Medeiros Merjam, Guilherme (1688) | Lost 1-2 | -161522 |
| top | average opponent: 1536record: 4-3 | new rating: 1522 | ||
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 242 | Phillips, Gary (1500) | Draw 1-1 | 01500 |
| 2standard | 283 | Lifirenko, Mikhail M (1500) | Won 2-0 | +181518 |
| 3standard | 202 | Budgell, Lane (1500) | Won 2-0 | +181536 |
| 4standard | 151 | Kovacs, Bryan J (1519) | Lost 1-2 | -191517 |
| 5standard | 257 | Nalmpantidis, Nick (1517) | Won 2-0 | +181535 |
| 6standard | 175 | Pauly, Christopher M (1700) | Lost 1-2 | -151520 |
| 7standard | 254 | Barnes, Miles E (1518) | Lost 1-2 | -181502 |
| top | average opponent: 1536record: 3-3-1 | new rating: 1502 | ||