Knowlton, John
Current rating: 1485
Record: 12-14-4
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 37 | Bozhyk, Roman (1413) | Won 2-0 | +171513 |
| 2legacy | 138 | Humphrey, Stephen (1496) | Lost 1-2 | -181495 |
| 3legacy | 357 | Cesari, Paolo (1892) | Lost 0-2 | -121483 |
| 4legacy | 432 | Beach, James (1485) | Won 2-0 | +181501 |
| 5legacy | 295 | Kwan, Philip (1543) | Lost 1-2 | -171484 |
| 6legacy | 299 | Ostreicher, Harley (1485) | Won 2-0 | +181502 |
| 7legacy | 250 | Cullum, Travis (1541) | Lost 1-2 | -171485 |
| top | average opponent: 1551record: 3-4 | new rating: 1485 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 528 | Tipton, David (1524) | Lost 0-2 | -171477 |
| 2legacy | 599 | Lingafelter, Spencer (1446) | Draw 1-1 | -11476 |
| 3legacy | 754 | Parker-Martell, Alisha (1508) | Won 2-1 | +191495 |
| 4legacy | 594 | Gutkin, Brad (1420) | Won 2-0 | +171512 |
| 5legacy | 404 | Johnson, Vincent (1657) | Draw 1-1 | +21514 |
| 6legacy | 541 | Summers, Hunter (1521) | Lost 0-2 | -181496 |
| top | average opponent: 1513record: 2-2-2 | new rating: 1496 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 515 | Roberts, Adam (1537) | Won 2-0 | +201467 |
| 2sealed | 293 | Chase, John (1679) | Lost 0-2 | -141453 |
| 3sealed | 536 | Sedlak, Jon (1524) | Lost 1-2 | -171436 |
| 4sealed | 635 | Hastings, Bobby (1482) | Won 2-1 | +191455 |
| 5sealed | 619 | Kronenberger, Chris (1717) | Won 2-1 | +231478 |
| 6sealed | 344 | Hill, James (1260) | Won 2-0 | +141492 |
| 7sealed | 326 | Rose-Gray, Thomas (1567) | Won 2-0 | +191511 |
| 8sealed | 117 | Douglass, Tyler (1588) | Lost 1-2 | -171494 |
| top | average opponent: 1544record: 5-3 | new rating: 1494 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 464 | Jones, Matt S (1500) | Lost 0-2 | -181481 |
| 4legacy | 410 | Crowley, Dave (1446) | Draw 1-1 | -11480 |
| 5legacy | 436 | Elgin, Jack (1615) | Lost 0-2 | -151465 |
| 6legacy | 546 | Debaugh, Tom S (1497) | Lost 1-2 | -181447 |
| top | average opponent: 1514record: 0-3-1 | new rating: 1447 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Koleszar, RJ (1500) | Won 2-1 | +181518 |
| 2sealed | 201 | Kovalcik, Brad (1518) | Won 2-0 | +181536 |
| 3sealed | 97 | Keane, Trevor (1522) | Draw 1-1 | 01536 |
| 4sealed | 215 | Campbell, Eric (1500) | Lost 0-2 | -191517 |
| 5sealed | 358 | Biondillo, Julian (1510) | Lost 0-2 | -181499 |
| top | average opponent: 1510record: 2-2-1 | new rating: 1499 | ||