Duffy, Shane
Current rating: 1465
Record: 5-6 (GP) / 1-3 (professional)
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 258 | McAtee, Spencer (1500) | Won 2-0 | +191454 |
| 2standard | 232 | Seanger, Nicholas (1537) | Won 2-0 | +201474 |
| 3standard | 105 | Buehler, Alexander (1514) | Won 2-1 | +191493 |
| 4standard | 109 | Jacob, Michael (1853) | Won 2-0 | +241517 |
| 5standard | 53 | Hipp, Ryan (1557) | Lost 0-2 | -171500 |
| 6standard | 109 | Hanford, Casey J (1573) | Lost 0-2 | -171483 |
| 7standard | 200 | Spaeth, Kobie K (1484) | Lost 0-2 | -181465 |
| top | average opponent: 1574record: 4-3 | new rating: 1465 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 109 | Garles, Sam (1483) | Lost 0-2 | -181452 |
| 2sealed | 428 | Weyers, Patrick (1482) | Lost 1-2 | -171435 |
| 3sealed | 461 | Fischer, Nick j (1464) | Won 2-1 | +181453 |
| 4sealed | 482 | Salway, Ashlund (1457) | Lost 1-2 | -181435 |
| top | average opponent: 1471record: 1-3 | new rating: 1435 | ||
| Pro Tour New York 1999 (Urza's block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 25 | Sayers, Adrian (1627) | Won 2-1 | +201520 |
| 2block | 20 | Marks, Jason (1521) | Lost 1-2 | -181502 |
| 3block | 88 | Jonsson, Andreas (1692) | Lost 0-2 | -141488 |
| 4block | 87 | Marks, John (1495) | Lost 0-2 | -181470 |
| top | average opponent: 1584record: 1-3 | new rating: 1470 | ||