Giarratana, Samuel
Current rating: 1555
Record: 16-15-2
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 260 | Van Ausdal, Matthew (1316) | Won 2-0 | +141549 |
| 2standard | 75 | Still, Jim (1549) | Won 2-0 | +181567 |
| 3standard | 112 | Rountree, Collin (2061) | Lost 0-2 | -101557 |
| 4standard | 291 | Sasser, Drake (1760) | Lost 0-2 | -141543 |
| 5standard | 409 | Peters, Patrick (1331) | Won 2-0 | +141557 |
| 6standard | 257 | Sottile, Richard (1523) | Won 2-0 | +171574 |
| 7standard | 254 | Hudson, Matthew (1492) | Lost 0-2 | -191555 |
| top | average opponent: 1576record: 4-3 | new rating: 1555 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 18 | Whitcomb, Caleb (1500) | Won 2-1 | +191454 |
| 2standard | 96 | Fielman, Josh (1525) | Draw 1-1 | +21456 |
| 3standard | 299 | Laino, Michael (1518) | Won 2-1 | +191475 |
| 4standard | 163 | Hynes, Benjamin (1538) | Won 1-0 | +191494 |
| 5standard | 81 | Gellis, Dylan (1628) | Won 2-1 | +201514 |
| 6standard | 40 | Wysocki, Eric (1563) | Won 2-0 | +191533 |
| 7standard | 21 | Schmidt, Zack (1723) | Lost 0-2 | -141519 |
| 8standard | 71 | Skarren, Frank (2016) | Won 2-0 | +261545 |
| 9standard | 36 | Spring, Tyler (1594) | Lost 1-2 | -171528 |
| 10standard | 82 | Gibson, Matthew (1569) | Lost 1-2 | -171511 |
| 11standard | 141 | Holt, Andrew (1556) | Lost 0-2 | -171494 |
| 12standard | 160 | Hudson, John (1548) | Won 2-0 | +191513 |
| 13standard | 130 | Herrera, Joseph (1664) | Won 2-0 | +201533 |
| 14standard | 94 | Underwood, Alexander (1572) | Won 2-0 | +191552 |
| 15standard | 72 | Byrne, Christopher (1584) | Lost 1-2 | -171535 |
| top | average opponent: 1607record: 9-5-1 | new rating: 1535 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 173 | Thomas, Tommy (1472) | Lost 0-2 | -171436 |
| 2sealed | 620 | Faherty, Francesco (1431) | Draw 1-1 | 01436 |
| 3sealed | 977 | Krolik, Chip (1305) | Won 2-0 | +151451 |
| 4sealed | 760 | Lodes, Kyle (1471) | Won 2-1 | +191470 |
| 5sealed | 544 | Kean, Matthew (1457) | Lost 0-2 | -191451 |
| 6sealed | 676 | Babson, McCray (1563) | Lost 1-2 | -161435 |
| top | average opponent: 1450record: 2-3-1 | new rating: 1435 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 795 | Pordes, Casey (1778) | Won 2-0 | +231523 |
| 4sealed | 681 | Faure Montero, Rodrigo (1562) | Lost 1-2 | -171506 |
| 5sealed | 746 | Harris, Tristan (1497) | Lost 0-2 | -181488 |
| 6sealed | 891 | Spezzo, Vincent (1562) | Lost 1-2 | -171471 |
| 7sealed | 873 | Gillespie, Jesse (1493) | Lost 0-2 | -181453 |
| top | average opponent: 1579record: 1-4 | new rating: 1453 | ||