Slaughter, John
Current rating: 1545
Record: 8-6-4
| Grand Prix Philadelphia 2000 (extended) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 51 | Douglass, Morgan (1518) | Draw 0-0 | 01484 |
| 3extended | 93 | Ellis, Chad (1545) | Won 0-0 | +191503 |
| 4extended | 68 | Wilbert, Mike (1536) | Won 0-0 | +191522 |
| 5extended | 31 | Battista, Michael (1557) | Won 0-0 | +191541 |
| 6extended | 18 | Ziegler, Eric (1529) | Won 0-0 | +181559 |
| 7extended | 8 | Boyer, Chris (1608) | Won 0-0 | +181577 |
| 8extended | 5 | Joyce, Brian (1595) | Lost 0-0 | -171560 |
| 9extended | 19 | Pisano, Rob (1589) | Lost 0-0 | -181542 |
| 10extended | 23 | Keffer, Philip (1638) | Won 0-0 | +201562 |
| 11extended | 16 | Lute, Joe (1560) | Won 0-0 | +181580 |
| 12extended | 11 | Van Zander, Michael (1582) | Lost 0-0 | -181562 |
| 13extended | 17 | Turk, Eugene (1592) | Lost 0-0 | -171545 |
| 14extended | 21 | Yang, Peter (1557) | Draw 0-0 | 01545 |
| average opponent: 1570record: 7-4-2 | new rating: 1545 | |||
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 7 | Foure, Frederik (1500) | Draw 0-0 | 01500 |
| 4sealed | 74 | Weitz, David (1558) | Won 0-0 | +191519 |
| 5sealed | 35 | Fronzaglio, Frederick (1503) | Draw 0-0 | 01519 |
| 6sealed | 57 | Douglas, Richard (1552) | Lost 0-0 | -181501 |
| 7sealed | 72 | Logue, Timothy (1521) | Lost 0-0 | -171484 |
| average opponent: 1527record: 1-2-2 | new rating: 1484 | |||