Persello-Seefeld, Glenn
Current rating: 1558
Record: 9-6
| Grand Prix Detroit 2005 (BOK limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 63 | Wolbert Sr., John (1483) | Won 2-1 | +171552 |
| 3sealed | 23 | Jacob, Michael (1646) | Lost 0-2 | -161536 |
| 4sealed | 87 | Henderson, Christopher (1519) | Won 2-0 | +171553 |
| 5sealed | 58 | Pacifico, Andrew (1591) | Won 2-0 | +191572 |
| 6sealed | 58 | Stein, Sam (1726) | Lost 1-2 | -151557 |
| 7sealed | 61 | Skallerup, Josiah (1639) | Won 2-0 | +191576 |
| 8sealed | 48 | Zambrano, Carlos (1585) | Lost 0-2 | -181558 |
| average opponent: 1599record: 4-3 | new rating: 1558 | |||
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 127 | Ratliff, Mark (1464) | Won 2-1 | +171517 |
| 2block | 47 | Acerra, A J (1518) | Lost 1-2 | -181499 |
| 3block | 190 | Kornet, Andy (1415) | Won 2-0 | +171516 |
| 4block | 107 | Reilly, Michael (1581) | Won 2-1 | +191535 |
| 5block | 72 | Petersen, David (1624) | Won 2-0 | +201555 |
| 6block | 62 | Cutler, Aaron (1500) | Lost 1-2 | -191536 |
| 7block | 63 | Morrison, James (1536) | Won 2-1 | +181554 |
| 8block | 56 | Williams, Corkryn (1509) | Lost 1-2 | -191535 |
| average opponent: 1518record: 5-3 | new rating: 1535 | |||