Chappell, Jonathon
Current rating: 1651
Record: 27-18
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1667 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 127 | Boyd, Pheret (1531) | Won 2-0 | +151682 |
| 2standard | 200 | Gauthier, Alain (1595) | Won 2-1 | +171699 |
| 3standard | 131 | Kovacs, Ryan (1556) | Lost 1-2 | -211678 |
| 4standard | 339 | Cameron, Shaun (1471) | Lost 0-2 | -221656 |
| 5standard | 535 | Nallaratnam, Vinashan (1499) | Won 2-1 | +151671 |
| 6standard | 332 | Kang, Eugene (1519) | Lost 1-2 | -201651 |
| top | average opponent: 1529record: 3-3 | new rating: 1651 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1663 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 155 | Thompson, Sean (1512) | Won 2-0 | +151678 |
| 2modern | 108 | Schlactus, Brian (1452) | Won 2-0 | +141692 |
| 3modern | 181 | Madouse, Kurt (1535) | Won 2-1 | +151707 |
| 4modern | 92 | Simonot, Timothee (1829) | Lost 1-2 | -161691 |
| 5modern | 206 | Serignese, Paul (1659) | Lost 1-2 | -181673 |
| 6modern | 207 | Schmidt, Alex (1469) | Won 2-1 | +141687 |
| 7modern | 186 | Gostek, Ryan (1549) | Lost 0-2 | -201667 |
| top | average opponent: 1572record: 4-3 | new rating: 1667 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 358 | Luellen, Matthew (1500) | Won 2-1 | +171542 |
| 2modern | 69 | Robinson, John (1572) | Won 2-0 | +191561 |
| 3modern | 77 | Waldenberger, Philip (1536) | Won 2-0 | +171578 |
| 4modern | 6 | Kohrs, Brandon (1586) | Won 2-1 | +181596 |
| 5modern | 3 | White, Harold (1658) | Won 2-1 | +201616 |
| 6modern | 15 | Copeland, Samuel (1673) | Won 2-0 | +191635 |
| 7modern | 10 | Yackey, Stephen (1607) | Won 2-0 | +171652 |
| 8modern | 6 | Armstrong, Timothy (1612) | Won 2-0 | +171669 |
| 9modern | 1 | Yarbrough, Christopher (1718) | Won 2-1 | +191688 |
| 10modern | 5 | Calderon, Andrew (1903) | Lost 0-2 | -141674 |
| 11modern | 8 | Flores, Edgar (1817) | Lost 0-2 | -151659 |
| 12modern | 25 | Rocco, Craig (1703) | Won 2-0 | +191678 |
| 13modern | 45 | Braun-Duin, Brian (1924) | Won 2-1 | +221700 |
| 14modern | 26 | Wildes, Julian (1656) | Lost 0-2 | -191681 |
| 15modern | 26 | Sabella, Jordan (1665) | Lost 0-2 | -181663 |
| top | average opponent: 1675record: 11-4 | new rating: 1663 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 181 | Warren, Joshua D (1500) | Lost 0-2 | -181482 |
| 2modern | 481 | Cronenwett, Joel (1482) | Won 0-0 | +181500 |
| 3modern | 536 | Everingham, Scott (1499) | Won 2-1 | +181518 |
| 4modern | 313 | Cortina, Austin (1521) | Won 2-0 | +181536 |
| 5modern | 269 | Arthurs, Marshall (1666) | Lost 1-2 | -161520 |
| 6modern | 308 | Snover, Aaron (1647) | Won 2-0 | +201540 |
| 7modern | 275 | Boggemes, Stephen (1674) | Lost 1-2 | -151525 |
| top | average opponent: 1570record: 4-3 | new rating: 1525 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Coe, Nicholas (1500) | Lost 0-2 | -191518 |
| 2sealed | 483 | Winkler, Joseph (1482) | Lost 0-2 | -181500 |
| top | average opponent: 1491record: 0-2 | new rating: 1500 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 294 | Pelletier, Nick (1500) | Won 2-1 | +181518 |
| 2sealed | 115 | Blevins, John (1538) | Lost 1-2 | -181500 |
| 3sealed | 370 | Romonosky, Glen (1500) | Won 2-0 | +181518 |
| 4sealed | 347 | Facchini, Nullo (1547) | Lost 0-2 | -171501 |
| 5sealed | 552 | Cahill, Stephen J (1501) | Won 2-0 | +181519 |
| 6sealed | 397 | Wetmore, Tyler (1518) | Won 2-0 | +181537 |
| 7sealed | 314 | Ratanadawong, Jordan (1542) | Won 2-1 | +181555 |
| 8sealed | 262 | Wurzer, Mike (1550) | Lost 0-2 | -181537 |
| top | average opponent: 1524record: 5-3 | new rating: 1537 | ||