Guy, Sam
Current rating: 1462
| Grand Prix Montreal 2018 (GRN limited) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 207 | MacDonald, Kyle (1468) | Lost 0-2 | -181456 |
| 2sealed | 342 | Moreau, James (1482) | Won 2-1 | +181474 |
| 3sealed | 404 | Whittington, Michael (1521) | Draw 1-1 | +11475 |
| 4sealed | 340 | Sacks, Neal (1780) | Lost 1-2 | -131462 |
| top | average opponent: 1562record: 1-2-1 | new rating: 1462 | ||
| Grand Prix Providence 2018 (M19 standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 22 | Knight, Christopher (1633) | Lost 0-2 | -151470 |
| 4standard | 177 | Puckett, Katie (1572) | Won 2-1 | +201490 |
| 5standard | 120 | Appler, Mikael (1542) | Lost 0-2 | -171473 |
| 6standard | 199 | Courtemanche, Jarrod (1447) | Won 2-1 | +171490 |
| 7standard | 119 | Vulfs, Justin (1561) | Lost 1-2 | -161474 |
| top | average opponent: 1551record: 2-3 | new rating: 1474 | ||
| Grand Prix New Jersey 2017 (lim) (XLN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 79 | Flores, Edgar (1692) | Lost 0-2 | -151485 |
| top | record: 0-1 | new rating: 1485 | ||