Sheehan, John
Current rating: 1519
Record: 16-19
| Grand Prix Orlando 2018 (M19 standard) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 280 | Mullins, Corey (1434) | Lost 0-2 | -201516 |
| 2standard | 336 | Haltiwanger, Jonathan (1487) | Lost 0-2 | -181498 |
| 3standard | 440 | Abreu, Leonard (1464) | Won 2-1 | +171515 |
| 4standard | 378 | Gibson, Travis (1537) | Won 2-1 | +181533 |
| 5standard | 284 | Ma, Xiaozhe (1726) | Lost 0-2 | -141519 |
| top | average opponent: 1529record: 2-3 | new rating: 1519 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 2 | Chou, Cosmo (1518) | Won 2-0 | +181549 |
| 3standard | 265 | Kocsis, Michael (1534) | Lost 1-2 | -181531 |
| 4standard | 323 | Morse, William (1517) | Won 2-0 | +171548 |
| 5standard | 249 | Miller, Myles (1603) | Lost 0-2 | -171531 |
| 6standard | 345 | Peters, Erik (1793) | Won 2-0 | +231554 |
| 7standard | 262 | Fonseca, Oscar (1538) | Lost 0-2 | -181536 |
| 8standard | 314 | Guthrie, Brett (1520) | Won 2-0 | +171553 |
| 9standard | 149 | Li, Lucas Muxi (1583) | Lost 0-2 | -171536 |
| top | average opponent: 1576record: 4-4 | new rating: 1536 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 559 | May, Taylor (1760) | Won 2-0 | +231514 |
| 4sealed | 550 | Byrd, Nicholas (1719) | Won 2-1 | +221536 |
| 5sealed | 583 | Romao, Carlos (1901) | Lost 0-2 | -121524 |
| 6sealed | 604 | Novak, Ed (1565) | Won 2-1 | +191543 |
| 7sealed | 652 | Fonseca, Oscar (1668) | Won 2-0 | +201563 |
| 8sealed | 578 | Chernoff, Adam (1770) | Lost 1-2 | -141549 |
| 9sealed | 638 | Orellana, Manuel (1751) | Lost 1-2 | -151534 |
| 10draft | 729 | Yu, Jarvis (1964) | Won 2-1 | +261560 |
| 11draft | 730 | Maginnis, Peter (1946) | Lost 0-2 | -111549 |
| 12draft | 725 | Hovis, Matthew (1584) | Lost 1-2 | -181531 |
| top | average opponent: 1763record: 5-5 | new rating: 1531 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 684 | Mullin, Geoff (1734) | Won 2-1 | +231505 |
| 4sealed | 574 | Enevoldsen, Thomas (2067) | Won 2-0 | +271532 |
| 5sealed | 604 | Epstein, Justin (1558) | Lost 0-2 | -181514 |
| 6sealed | 637 | Burdette, Kendall (1549) | Lost 0-2 | -171497 |
| 7sealed | 742 | Neal, Robert (1468) | Lost 1-2 | -191478 |
| 8sealed | 809 | Martin, Dan (1496) | Won 2-0 | +191497 |
| 9sealed | 793 | Krangel, Eric (1634) | Won 2-1 | +201517 |
| 10draft | 1010 | Reilly, Michael (1651) | Lost 0-2 | -151502 |
| 11draft | 1028 | Doshi, Vishvas (1741) | Lost 1-2 | -141488 |
| 12draft | 1028 | Baker, Justin (1602) | Won 2-0 | +201508 |
| 13draft | 853 | Holcomb, Austin (1579) | Lost 1-2 | -171491 |
| top | average opponent: 1643record: 5-6 | new rating: 1491 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 367 | Sauer-Hart, Seth (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||