Guzman, Charle
Current rating: 1583
Record: 12-8
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 586 | Collins, Matthew P (1500) | Won 2-0 | +181544 |
| 2sealed | 231 | Vega, William (1480) | Won 2-1 | +171561 |
| 3sealed | 95 | Spoley, John (1536) | Won 2-0 | +171578 |
| 4sealed | 85 | Pray, Joshua (1505) | Lost 0-2 | -191559 |
| 5sealed | 387 | Trottier, Charles (1633) | Won 2-0 | +191578 |
| 6sealed | 200 | Jackson, Nathaniel (1541) | Won 2-1 | +181596 |
| 7sealed | 4 | Gorin, Vadim (1580) | Won 2-0 | +171613 |
| 8sealed | 21 | Samms, Phil (1767) | Lost 0-2 | -151598 |
| 9sealed | 93 | Buckingham, James (1733) | Lost 1-2 | -151583 |
| top | average opponent: 1586record: 6-3 | new rating: 1583 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 228 | Boehmer, Maury J (1518) | Lost 0-2 | -171467 |
| 3sealed | 217 | McCown, Monica (1466) | Won 2-1 | +181485 |
| 4sealed | 218 | Plowman, Sean (1518) | Won 2-0 | +181503 |
| 5sealed | 110 | Hauf, Bryan (1483) | Won 2-0 | +181521 |
| 6sealed | 107 | Gurevich, Misha (1614) | Lost 0-2 | -161505 |
| 7sealed | 132 | Stolze, Philip (1648) | Won 2-0 | +201525 |
| 8sealed | 86 | Gapinski, Trevor (1554) | Won 2-0 | +191544 |
| 9sealed | 67 | Vargas, Andrew (1581) | Lost 0-2 | -181526 |
| top | average opponent: 1548record: 5-3 | new rating: 1526 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 70 | Freitas, John (1480) | Won 2-0 | +181518 |
| 4sealed | 85 | Suarez, Daniel (1571) | Lost 1-2 | -171501 |
| 5sealed | 83 | Gindy, Charles (1581) | Lost 0-2 | -171484 |
| top | average opponent: 1544record: 1-2 | new rating: 1484 | ||