Lackeos, John
Current rating: 1553
Record: 9-6
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 73 | Helton, William L (1536) | Lost 0-2 | -181517 |
| 4sealed | 175 | Burkhart, Nick (1527) | Won 2-0 | +181535 |
| 5sealed | 114 | Driggers, Gerald D (1540) | Lost 1-2 | -181517 |
| 6sealed | 125 | Beckman, David (1470) | Won 2-0 | +171534 |
| 7sealed | 113 | Greene, David (1536) | Won 2-0 | +181552 |
| 8sealed | 71 | Esposito, John (1608) | Won 2-1 | +191571 |
| 9sealed | 24 | Steele, Derrick (1574) | Lost 0-2 | -181553 |
| average opponent: 1542record: 4-3 | new rating: 1553 | |||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 30 | Elder, Rich (1500) | Lost 0-2 | -181482 |
| 2block | 204 | Kerwin, Sean (1482) | Won 2-0 | +181500 |
| 3block | 149 | Ho, John Y (1489) | Lost 1-2 | -181482 |
| 4block | 212 | Tilly, Jeremy (1414) | Won 2-0 | +171499 |
| 5block | 146 | Carlson, Benjamin (1505) | Lost 1-2 | -181481 |
| 6block | 141 | Refenes, Tommy (1482) | Won 2-0 | +181499 |
| 7block | 111 | Miller, Kevin (1499) | Won 2-0 | +181517 |
| 8block | 91 | Hitz, Eric (1518) | Won 2-0 | +181535 |
| average opponent: 1486record: 5-3 | new rating: 1535 | |||