Buck, Jonathan
Current rating: 1414
Record: 6-11-1
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 643 | Fesler, Soren (1482) | Won 2-0 | +191484 |
| 2modern | 108 | Katz, Samuel (1511) | Lost 1-2 | -181466 |
| 3modern | 448 | Solis, Jonathan (1503) | Lost 1-2 | -171449 |
| 4modern | 887 | Brown, Austin (1502) | Lost 0-2 | -171432 |
| 5modern | 906 | Lovelace, Noah (1465) | Lost 1-2 | -181414 |
| top | average opponent: 1493record: 1-4 | new rating: 1414 | ||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 220 | Funkhouser, Andrew (1463) | Lost 0-0 | -191482 |
| 4modern | 280 | Mills, Cody (1482) | Draw 1-1 | 01482 |
| 5modern | 264 | Le, Tony (1560) | Lost 0-2 | -171465 |
| top | average opponent: 1501record: 0-2-1 | new rating: 1465 | ||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 124 | Cafaro, Giancarlo (1516) | Won 2-1 | +191518 |
| 2standard | 138 | Leggat, Jim (1560) | Won 2-0 | +181536 |
| 3standard | 12 | Broussard, Shawn (1544) | Lost 0-2 | -171519 |
| 4standard | 224 | Pruett, Isaac (1524) | Lost 1-2 | -181501 |
| top | average opponent: 1536record: 2-2 | new rating: 1501 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 350 | Alm, Benjamin (1541) | Lost 0-2 | -171483 |
| 2standard | 382 | Abraham, Matthew (1435) | Won 2-0 | +171500 |
| 3standard | 374 | Musick, Joel (1500) | Lost 0-2 | -181482 |
| 4standard | 394 | Goldman, Maxwell (1466) | Won 2-1 | +181500 |
| 5standard | 354 | Mantey, Tyler (1506) | Lost 0-0 | -181482 |
| 6standard | 307 | Walker, Jan (1464) | Won 2-0 | +171499 |
| top | average opponent: 1485record: 3-3 | new rating: 1499 | ||