Buttrum, Jon
Current rating: 1525
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1492 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 376 | Cicardo, Jenna (1503) | Won 2-0 | +181510 |
| 2modern | 174 | Moreno, Arthur (1502) | Lost 0-2 | -181492 |
| 3modern | 404 | Sienkiewicz, Daniel (1399) | Won 2-1 | +161508 |
| 4modern | 224 | Tatum, Joseph (1462) | Lost 1-2 | -181490 |
| 5modern | 389 | Ma, Tony (1463) | Won 2-1 | +171507 |
| 6modern | 190 | Jacobi, Brian (1473) | Won 2-0 | +171524 |
| 7modern | 115 | Robichaux, Henry (1535) | Lost 1-2 | -171507 |
| 8modern | 211 | Litz, Samantha (1515) | Won 2-0 | +181525 |
| top | average opponent: 1481record: 5-3 | new rating: 1525 | ||
| Grand Prix Houston 2018 (RIX limited) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 36 | Wallace, Michael (1588) | Draw 1-1 | +11529 |
| 2sealed | 209 | Phillips, Brett (1500) | Lost 0-2 | -181511 |
| 3sealed | 371 | Thomas, Tommy (1459) | Lost 0-2 | -191492 |
| top | average opponent: 1516record: 0-2-1 | new rating: 1492 | ||
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 348 | Valdez, Zachary (1500) | Lost 1-2 | -181482 |
| 2standard | 652 | Grason, Ethan (1464) | Won 2-0 | +181500 |
| 3standard | 569 | Grogan, Jonathan (1500) | Won 2-1 | +181518 |
| 4standard | 480 | Chadwick, Jacob (1591) | Won 2-1 | +191537 |
| 5standard | 290 | Mekeel, Edward (1539) | Won 2-0 | +181555 |
| 6standard | 155 | Garcia III, Joe (1716) | Lost 0-2 | -151540 |
| 7standard | 314 | Wang, Yitu (1576) | Won 2-0 | +191559 |
| 8standard | 178 | Kimmerly, Jake (1612) | Lost 1-2 | -171542 |
| 9standard | 338 | Zaidi, Jibraeel (1811) | Lost 0-2 | -141528 |
| top | average opponent: 1590record: 5-4 | new rating: 1528 | ||