Brock-Colegrove, Jonathon
Current rating: 1473
Record: 5-7
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 405 | Keegan, Aoife (1500) | Won 2-0 | +191481 |
| 2standard | 158 | Perez, Randy (1779) | Won 2-1 | +231504 |
| 3standard | 7 | Robinson, Matt (1510) | Lost 1-2 | -181486 |
| 4standard | 401 | Linder, Gerald (1516) | Won 2-1 | +191505 |
| 5standard | 169 | Townsend, Erik (1693) | Lost 0-2 | -151490 |
| 6standard | 362 | Kivi, Andrew (1529) | Lost 1-2 | -171473 |
| average opponent: 1588record: 3-3 | new rating: 1473 | |||
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 268 | Garrison, Ryan (1500) | Lost 1-2 | -181482 |
| 2legacy | 538 | Lovlyn, Keaton (1482) | Won 2-1 | +181500 |
| 3legacy | 633 | Velez, Christian (1502) | Lost 1-2 | -181482 |
| 4legacy | 761 | Burugapalli, Sanjay (1482) | Lost 1-2 | -181464 |
| 5legacy | 753 | Lowe, Jeff (1383) | Won 2-0 | +171481 |
| 6legacy | 608 | Nickerson, Eric (1466) | Lost 0-2 | -191462 |
| average opponent: 1469record: 2-4 | new rating: 1462 | |||