Gragg, John
Current rating: 1466
| MagicCon Las Vegas 2023 Limited Open (WOE limited) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3152 | Brown, Sean D (1514) | Lost 0-2 | -171398 |
| 2sealed | 3619 | Oakes, Barry (1450) | Won 2-1 | +191417 |
| 3sealed | 3320 | Wong, Daniel (1689) | Lost 0-2 | -131404 |
| 4sealed | 3415 | Zhang, Bushi (1692) | Draw 1-1 | +51409 |
| 5sealed | 3457 | Gallinaro, Loris (1276) | Won 2-0 | +161425 |
| 6sealed | 3341 | Ruml, John (1501) | Won 2-0 | +191444 |
| 7sealed | 3233 | Franco, Justin (1647) | Draw 1-1 | +41448 |
| 8sealed | 3204 | O'Brien, John (1473) | Won 2-1 | +181466 |
| top | average opponent: 1530record: 4-2-2 | new rating: 1466 | ||
| Grand Prix Milwaukee 2002 (TOR standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 36 | Hilleson, Benjamin (1517) | Lost 0-2 | -171448 |
| 2standard | 212 | Szamborski, Jeff (1482) | Won 2-0 | +191467 |
| 3standard | 138 | Schneck, George (1500) | Lost 0-2 | -181449 |
| 4standard | 250 | Weber, Scott (1485) | Lost 0-2 | -171432 |
| 5standard | 237 | Weiss, Tyler (1465) | Lost 0-2 | -171415 |
| top | average opponent: 1490record: 1-4 | new rating: 1415 | ||
| Grand Prix Denver 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 15 | Sambrano, Daniel (1500) | Won 2-1 | +181518 |
| 2block | 30 | Herberg, Cory (1518) | Lost 0-2 | -181500 |
| 3block | 125 | Hanson, Vance (1500) | Draw 1-1 | 01500 |
| 4block | 128 | Bang, Ran (1501) | Won 2-1 | +181518 |
| 5block | 92 | Vaughan, Richard (1501) | Lost 0-2 | -181500 |
| 6block | 113 | Mayo, Frank (1580) | Lost 0-2 | -171483 |
| 7block | 113 | Pust, Jonathan (1484) | Lost 0-2 | -181465 |
| top | average opponent: 1512record: 2-4-1 | new rating: 1465 | ||