Sparling, Bryon
Current rating: 1276
| Grand Prix Portland 2019 (ELD standard) | starting rating: 1329 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 69 | Butler, Torin (1514) | Lost 0-2 | -151314 |
| 2standard | 122 | Scott, Christian (1481) | Won 2-0 | +211335 |
| 3standard | 152 | Greene, Mason (1433) | Lost 0-0 | -161319 |
| 4standard | 188 | Gianatassio, Dominic (1458) | Lost 0-2 | -151304 |
| 5standard | 199 | Fryer, Stephen (1412) | Lost 0-2 | -161288 |
| 6standard | 183 | Pearson, Max (1452) | Lost 0-2 | -151273 |
| 7standard | 158 | Aidala, Harrison (1428) | Won 2-0 | +201293 |
| 8standard | 143 | Dodd, Matthew (1352) | Lost 0-2 | -171276 |
| top | average opponent: 1441record: 2-6 | new rating: 1276 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 261 | Osborn, Jackson (1500) | Lost 0-2 | -171392 |
| 2modern | 666 | Breymeyer, Isaac (1481) | Lost 0-2 | -161376 |
| 3modern | 753 | Olgado, Joseph (1439) | Lost 1-2 | -171359 |
| 4modern | 810 | Ikeda, Tatsuya (1484) | Lost 0-2 | -161343 |
| 5modern | 765 | Bradley, Mitchell (1409) | Lost 0-2 | -161327 |
| 6modern | 660 | Weinhandl, Roland (1410) | Lost 0-2 | -171310 |
| 7modern | 544 | Mancia, Anthony (1392) | Won 2-0 | +201330 |
| 8modern | 436 | Rice, Newel (1300) | Draw 1-1 | -11329 |
| top | average opponent: 1427record: 1-6-1 | new rating: 1329 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 26 | Vallotton, Brandon (1500) | Lost 0-2 | -181482 |
| 2standard | 688 | Sharp, Jeff (1431) | Won 2-0 | +171499 |
| 3standard | 391 | Passarelli, Dominic (1502) | Lost 0-2 | -181481 |
| 4standard | 655 | Boykowich, Dylan (1626) | Lost 0-2 | -151466 |
| 5standard | 738 | Perkins, Justin (1424) | Lost 0-2 | -191447 |
| 6standard | 662 | Vanderhoek, Anthony (1452) | Won 2-0 | +181465 |
| 7standard | 576 | Brauner, Daniel (1427) | Lost 0-2 | -191446 |
| 8standard | 498 | Onagan, Chris (1398) | Lost 0-2 | -181428 |
| 9standard | 421 | Fuller, Matthew (1383) | Lost 0-2 | -191409 |
| top | average opponent: 1460record: 2-7 | new rating: 1409 | ||