McGuire, John
Current rating: 1480
| Grand Prix Charlotte 2005 (extended) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 54 | McCraw, Neil (1500) | Won 2-1 | +181512 |
| 2extended | 57 | Tompkins, Mike (1518) | Won 2-1 | +181530 |
| 3extended | 25 | Connelly, Christopher (1659) | Lost 1-2 | -161514 |
| 4extended | 124 | Westnedge, Adam (1592) | Lost 0-2 | -161498 |
| 5extended | 143 | Aintrazi, Amer (1501) | Draw 1-1 | 01498 |
| 6extended | 130 | Hendrickson, Cecil (1501) | Lost 1-2 | -181480 |
| 7extended | 122 | Wolfe, Jeremy (1465) | Lost 0-2 | -191461 |
| 8extended | 97 | Carroll, Jarrad (1465) | Won 2-0 | +191480 |
| top | average opponent: 1525record: 3-4-1 | new rating: 1480 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 5 | Berryhill, Ellison (1518) | Won 2-0 | +171568 |
| 3block | 10 | Gryder, Berkley (1488) | Won 2-1 | +171585 |
| 4block | 88 | Kuhman, Michael (1532) | Lost 0-2 | -191566 |
| 5block | 60 | Impellizzieri, Anthony (1692) | Lost 0-2 | -161550 |
| 6block | 119 | Suarez, Daniel (1518) | Lost 1-2 | -191531 |
| 7block | 113 | Klaity, Ian (1499) | Lost 1-2 | -181513 |
| 8block | 95 | Underwood, Justin (1449) | Lost 0-2 | -191494 |
| top | average opponent: 1528record: 2-5 | new rating: 1494 | ||
| Grand Prix Atlanta 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 24 | Stammerjohan, William (1494) | Won 2-1 | +181518 |
| 2sealed | 57 | Levy, Adam (1518) | Won 2-0 | +181536 |
| 3sealed | 3 | Karem, Laura (1518) | Lost 0-2 | -181518 |
| 4sealed | 86 | Bleiweiss, Ben (1427) | Lost 0-2 | -201498 |
| 5sealed | 112 | Gibbs, Ronald (1500) | Won 2-0 | +181516 |
| 6sealed | 95 | Sickmiller, Todd (1458) | Won 2-0 | +171533 |
| 7sealed | 70 | Toney, Richard (1521) | Won 2-0 | +181551 |
| top | average opponent: 1491record: 5-2 | new rating: 1551 | ||