Cupo, Tom
Current rating: 1474
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1491 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 8 | Rivers, Jared (1500) | Lost 0-2 | -181473 |
| 2block | 167 | Loveless, Evan (1482) | Won 2-0 | +181491 |
| 3block | 148 | Irvine, David (1494) | Lost 0-2 | -181473 |
| 4block | 209 | Meerbott, James (1483) | Won 2-0 | +181491 |
| 5block | 150 | Iglesias, John (1507) | Lost 1-2 | -171474 |
| top | average opponent: 1493record: 2-3 | new rating: 1474 | ||
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 158 | Lawson, Gregory (1500) | Won 2-0 | +191501 |
| 2sealed | 112 | Prater, James (1452) | Won 2-0 | +171518 |
| 3sealed | 44 | Stern, Jon (1758) | Won 2-0 | +221540 |
| 4sealed | 58 | Kirsch, Gregory (1571) | Won 2-1 | +191559 |
| 5sealed | 13 | Hoaen, Rich (1632) | Lost 1-2 | -171542 |
| 6sealed | 58 | Imperiale, Jason (1539) | Lost 1-2 | -181524 |
| 7sealed | 111 | Parker, Neil (1636) | Lost 1-2 | -161508 |
| 8sealed | 85 | Chin, Chris (1560) | Lost 1-2 | -171491 |
| top | average opponent: 1581record: 4-4 | new rating: 1491 | ||
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 15 | Waser, Mark (1518) | Won 0-0 | +181518 |
| 3sealed | 37 | Sullivan, Robert (1500) | Lost 0-0 | -181500 |
| 4sealed | 126 | Barylski, Steven (1518) | Lost 0-0 | -181482 |
| top | average opponent: 1512record: 1-2 | new rating: 1482 | ||