Guendulay, Mario
Current rating: 1516
Record: 4-3
| Grand Prix Memphis 1999 (Urza's block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 9 | Baxter, James (1500) | Lost 0-0 | -181482 |
| 2block | 120 | Proffitt, Richie (1464) | Won 0-0 | +181500 |
| 3block | 98 | Johnson, Calum (1483) | Won 0-0 | +171517 |
| 4block | 74 | Prater, James (1518) | Won 0-0 | +181535 |
| 5block | 41 | Franks, Zach (1518) | Lost 0-0 | -181517 |
| 6block | 55 | Beck, Scott (1431) | Won 0-0 | +171534 |
| 7block | 48 | Schilling, Adam (1536) | Lost 0-0 | -181516 |
| average opponent: 1493record: 4-3 | new rating: 1516 | |||