Leo, Jonny
Current rating: 1439
| Grand Prix Salt Lake City 2012 (DKA standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 85 | Ferry, Sergio (1722) | Lost 0-2 | -131433 |
| 5standard | 195 | Smith, Travis (1468) | Won 2-1 | +191452 |
| 6standard | 108 | Dixon, Jay (1561) | Won 2-1 | +201472 |
| 7standard | 48 | Burns, Ben (1582) | Lost 0-2 | -161456 |
| 8standard | 97 | Calvin, Nathan (1523) | Lost 0-2 | -171439 |
| top | average opponent: 1571record: 2-3 | new rating: 1439 | ||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 453 | Clarke, Matt D (1500) | Won 2-0 | +191500 |
| 2sealed | 485 | Ronquillo, Ramoncito D (1478) | Lost 1-2 | -191481 |
| 3sealed | 517 | Patrick S., (1481) | Lost 0-2 | -181463 |
| 4sealed | 594 | Robinson, Ken (1481) | Lost 1-2 | -181445 |
| 5sealed | 608 | Noda, Garrhet (1466) | Won 2-0 | +191464 |
| 6sealed | 569 | Corneveaux, George (1483) | Lost 1-2 | -181446 |
| top | average opponent: 1481record: 2-4 | new rating: 1446 | ||
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 276 | Ekstrand, Matthew B (1466) | Won 2-0 | +171517 |
| 2legacy | 213 | Hawkins, Chris (1518) | Won 2-0 | +181535 |
| 3legacy | 43 | Holland, Bob (1518) | Lost 1-2 | -181517 |
| 4legacy | 176 | Pederson, Michael w (1518) | Lost 1-2 | -181499 |
| 5legacy | 262 | Sabaio, Vince (1503) | Lost 0-2 | -181481 |
| top | average opponent: 1505record: 2-3 | new rating: 1481 | ||