Walter, Bill
Current rating: 1505
Record: 13-12
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 270 | Westervelt, Richard (1500) | Lost 1-2 | -191526 |
| 2standard | 521 | Racan, Jeffrey (1482) | Lost 0-2 | -191507 |
| 3standard | 629 | Beradi, Brett (1463) | Lost 0-2 | -191488 |
| 4standard | 766 | Borton, John (1428) | Won 2-0 | +171505 |
| top | average opponent: 1468record: 1-3 | new rating: 1505 | ||
| Grand Prix Salt Lake City 2005 (Kamigawa block) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 47 | Limb, Jeff (1500) | Won 2-1 | +171548 |
| 2block | 16 | Moore, Hugh (1502) | Lost 0-2 | -191529 |
| 3block | 47 | Morse-Fortier, Philip (1500) | Lost 1-2 | -181511 |
| 4block | 110 | Howa, John (1482) | Won 2-1 | +171528 |
| 5block | 86 | Oddo, Shane (1500) | Won 2-1 | +181546 |
| 6block | 65 | Smith, Kelly (1518) | Won 2-1 | +171563 |
| 7block | 31 | Cook, Richard (1543) | Lost 0-2 | -181545 |
| top | average opponent: 1506record: 4-3 | new rating: 1545 | ||
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 98 | Waite, Jack (1500) | Lost 0-2 | -191516 |
| 2sealed | 157 | Cogswell, Phillip (1481) | Won 2-1 | +171533 |
| 3sealed | 171 | Muir, Jeremy (1483) | Lost 0-2 | -191514 |
| 4sealed | 231 | Morin, Phillip (1482) | Won 2-0 | +181532 |
| 5sealed | 148 | Mongeon, Joe (1501) | Won 2-1 | +171549 |
| 6sealed | 127 | Faucher, Bernie (1520) | Lost 0-2 | -181531 |
| top | average opponent: 1495record: 3-3 | new rating: 1531 | ||
| Grand Prix Philadelphia 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Chamberlain, Bryan (1500) | Lost 1-2 | -181482 |
| 2sealed | 168 | Gobeyn, Joe (1484) | Won 2-0 | +181500 |
| 3sealed | 154 | Lynn, Nicholas (1500) | Lost 0-2 | -181482 |
| 4sealed | 202 | Weaver, Chad (1482) | Won 2-0 | +181500 |
| 5sealed | 183 | Gluck, Terrence (1501) | Won 2-0 | +181518 |
| 6sealed | 129 | Kaus, Jon (1462) | Won 2-0 | +171535 |
| 7sealed | 104 | Smith, Jason (1542) | Won 2-1 | +181553 |
| 8sealed | 57 | Margolin, Yan (1522) | Lost 0-2 | -181535 |
| top | average opponent: 1499record: 5-3 | new rating: 1535 | ||