Guinn, Matt
Current rating: 1521
Record: 1-1 (GP) / 4-3 (professional)
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 52 | Chin, Mark (1518) | Lost 0-0 | -181503 |
| 3sealed | 116 | Harvie, Donovan (1500) | Won 0-0 | +181521 |
| average opponent: 1509record: 1-1 | new rating: 1521 | |||
| Pro Tour New York 1999 (Urza's block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 1 | Rao, Siddhartha (1465) | Lost 1-2 | -191481 |
| 2block | 92 | Bolyard, Donald (1482) | Won 2-0 | +181499 |
| 3block | 109 | Steht, Lee (1502) | Won 2-1 | +181517 |
| 4block | 65 | Simpson, Ken (1611) | Lost 0-2 | -161501 |
| 5block | 80 | Comer, Alan (1633) | Lost 1-2 | -151486 |
| 6block | 101 | Tsukamoto, Toshiki (1527) | Won 2-1 | +181504 |
| 7block | 77 | Godinez Estrada, Gerardo (1460) | Won 2-1 | +171521 |
| average opponent: 1526record: 4-3 | new rating: 1521 | |||