Groh, Tony D
Current rating: 1544
Record: 10-8
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1566 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 310 | Baker, Alexander (1500) | Lost 1-2 | -201546 |
| 2standard | 432 | Patton, Josh (1482) | Won 2-0 | +171563 |
| 3standard | 312 | Lenkner, Marcus A (1483) | Lost 0-2 | -191544 |
| 4standard | 510 | Kohler, Michael (1593) | Won 2-1 | +191563 |
| 5standard | 442 | Lancaster, Nicholas (1505) | Lost 0-2 | -191544 |
| average opponent: 1513record: 2-3 | new rating: 1544 | |||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 519 | Spano, Mark (1526) | Lost 0-2 | -181482 |
| 3legacy | 562 | Murphy, Sean (1533) | Won 2-0 | +191501 |
| 4legacy | 514 | Guibault, Josh A (1555) | Won 2-1 | +191520 |
| 5legacy | 497 | Uebel, Kenny (1452) | Won 2-1 | +171537 |
| 6legacy | 436 | Wilson, Zack (1554) | Won 2-0 | +181555 |
| 7legacy | 423 | Signorini, Daniel (1550) | Won 2-1 | +181573 |
| 8legacy | 413 | Rabovsky, Jeffrey W (1705) | Won 2-0 | +211594 |
| 9legacy | 414 | Serignese, Paul (1670) | Lost 0-2 | -171577 |
| 10legacy | 68 | Antczak, Justin C (1622) | Won 2-0 | +191596 |
| 11legacy | 28 | Woltereck, Chris (1886) | Lost 0-2 | -131583 |
| 12legacy | 54 | Gearhart, David (1570) | Lost 1-2 | -181565 |
| 13legacy | 59 | DeAngelo, John (1575) | Won 2-1 | +181583 |
| 14legacy | 46 | Larson, Mark (1610) | Lost 0-2 | -171566 |
| average opponent: 1601record: 8-5 | new rating: 1566 | |||