Potochny, Joseph
Current rating: 1451
| Grand Prix Charlotte 2015 (modern) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 989 | Walpole, Chandler (1500) | Won 2-0 | +181486 |
| 2modern | 909 | Mcgee, Kyle W (1518) | Lost 1-2 | -171469 |
| 3modern | 976 | Hammitt, Joel C (1500) | Lost 1-2 | -181451 |
| top | average opponent: 1506record: 1-2 | new rating: 1451 | ||
| Grand Prix Baltimore 2014 (KTK limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 338 | Nelson, Jesse (1500) | Won 2-0 | +191485 |
| 2sealed | 133 | Kauffman, Brandon (1517) | Lost 0-2 | -171468 |
| top | average opponent: 1509record: 1-1 | new rating: 1468 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1044 | Gordon, Jesse (1563) | Won 2-0 | +191519 |
| 2modern | 1447 | Vogt, Eric (1518) | Lost 1-2 | -181501 |
| 3modern | 1291 | Mack, Shaun (1574) | Lost 1-2 | -171484 |
| 4modern | 1585 | Nguyen, Wesley (1481) | Lost 1-2 | -181466 |
| top | average opponent: 1534record: 1-3 | new rating: 1466 | ||