Sheffey, Tobias
Current rating: 1588
Record: 21-17
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1613 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 101 | Daugherty, Jeremy (1484) | Lost 0-2 | -201593 |
| 3standard | 367 | Gillenwater, Chad (1430) | Won 2-1 | +151608 |
| 4standard | 321 | Spencer, David (1518) | Lost 1-2 | -201588 |
| top | average opponent: 1477record: 1-2 | new rating: 1588 | ||
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1607 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 199 | Dovey, Emily (1472) | Won 2-0 | +151622 |
| 3sealed | 150 | Davies, Brendan (1536) | Won 2-1 | +171639 |
| 4sealed | 149 | Orlikoff, Russell (1526) | Lost 0-2 | -201619 |
| 5sealed | 271 | Shefler, Alex (1591) | Won 2-1 | +171636 |
| 6sealed | 158 | Menlibai, Paul (1537) | Lost 0-2 | -201616 |
| 7sealed | 307 | Rauch, Matt (1537) | Won 2-0 | +171633 |
| 8sealed | 215 | Richmond, Jonathan (1521) | Lost 0-2 | -201613 |
| top | average opponent: 1531record: 4-3 | new rating: 1613 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 824 | Vizaro, Justin (1555) | Won 2-0 | +181580 |
| 3sealed | 670 | Hess, James (1586) | Lost 1-2 | -181562 |
| 4sealed | 1023 | Walker, Mark (1589) | Won 2-1 | +191581 |
| 5sealed | 848 | Prater, John (1603) | Won 2-1 | +181599 |
| 6sealed | 754 | Marat, John (1624) | Won 2-1 | +181617 |
| 7sealed | 755 | Rosenthal, Stephen (1584) | Won 2-0 | +181635 |
| 8sealed | 333 | Stark, Ben S (2246) | Lost 0-2 | -81627 |
| 9sealed | 377 | Sunell, Jeremy J (1514) | Lost 0-2 | -201607 |
| top | average opponent: 1663record: 5-3 | new rating: 1607 | ||
| Grand Prix Charleston 2012 (RTR standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 39 | Delaporte, Josh (1500) | Won 0-0 | +191502 |
| 2standard | 47 | Nissen, Thomas (1518) | Won 2-1 | +181520 |
| 3standard | 53 | Smith, Ryan A (1533) | Lost 0-2 | -181502 |
| 4standard | 159 | LaFave, Christopher (1501) | Won 2-1 | +181520 |
| 5standard | 144 | Brehe, Patrick C (1518) | Won 2-0 | +181538 |
| 6standard | 2 | Pal, Carlos (1729) | Won 2-1 | +221560 |
| 7standard | 52 | Threet, Jason (1572) | Lost 1-2 | -181542 |
| 8standard | 70 | Odom, Mitch (1495) | Won 2-0 | +171559 |
| 9standard | 40 | Schneider, Andrew (1608) | Won 2-1 | +191578 |
| 10standard | 19 | Farrington, Kyle (1591) | Won 2-1 | +181596 |
| 11standard | 23 | Black, Samuel (1774) | Lost 0-2 | -151581 |
| 12standard | 23 | Fennell, Christopher (1971) | Won 2-0 | +251606 |
| 13standard | 21 | Stark, Ben S (2018) | Lost 1-2 | -111595 |
| 14standard | 24 | Van Deelen, Mike (1581) | Lost 1-2 | -181577 |
| 15standard | 30 | Romao, Carlos (1750) | Lost 1-2 | -151562 |
| top | average opponent: 1644record: 9-6 | new rating: 1562 | ||
| Grand Prix Nashville 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 581 | Bauer, Noah (1482) | Won 2-0 | +181518 |
| 2sealed | 412 | Belfatto, Michael (1604) | Lost 0-2 | -171501 |
| 3sealed | 565 | Rowell, Sean P (1499) | Lost 0-2 | -181483 |
| 4sealed | 688 | Bidwell, Nathan (1480) | Won 2-0 | +181501 |
| 5sealed | 644 | Cavenaugh, Justin (1519) | Lost 0-2 | -181483 |
| top | average opponent: 1517record: 2-3 | new rating: 1483 | ||