Shaffer, Tim J
Current rating: 1489
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 466 | Baillargeon, Dan (1500) | Won 2-0 | +181487 |
| 2sealed | 414 | Skedzielewski, Karl (1517) | Won 2-0 | +191506 |
| 3sealed | 380 | Hicks, Steven (1450) | Lost 1-2 | -191487 |
| 4sealed | 524 | Peters, Scott (1504) | Lost 1-2 | -181469 |
| 5sealed | 492 | Thibault, Gregoire (1502) | Won 2-1 | +191488 |
| 6sealed | 463 | Bayat, Behrouz (1520) | Won 2-0 | +181506 |
| 7sealed | 425 | Tulloch, Brandon L (1529) | Lost 0-2 | -171489 |
| top | average opponent: 1503record: 4-3 | new rating: 1489 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 459 | Compton, Travis (1517) | Draw 1-1 | +11485 |
| 3legacy | 499 | McClasky, Derek (1515) | Lost 0-2 | -181467 |
| 4legacy | 596 | Lekse, Jonathan (1499) | Draw 1-1 | +11468 |
| 5legacy | 634 | Lusk, Rob (1482) | Won 2-0 | +181486 |
| 6legacy | 579 | Speir, Gary (1519) | Lost 0-2 | -171469 |
| top | average opponent: 1507record: 1-2-2 | new rating: 1469 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 277 | Smith, Michael (1520) | Lost 1-2 | -181482 |
| 3legacy | 337 | Clark, Dan (1441) | Lost 1-2 | -181464 |
| 4legacy | 463 | Lisko, Nathan (1481) | Won 2-0 | +181482 |
| 5legacy | 323 | Ranallo, Frank (1501) | Won 2-0 | +181500 |
| 6legacy | 201 | Parnes, Stuart (1589) | Lost 0-2 | -161484 |
| top | average opponent: 1506record: 2-3 | new rating: 1484 | ||