Decker, Samuel
Current rating: 1523
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 244 | Landers, Benjamin (1524) | Lost 0-2 | -171449 |
| 2legacy | 240 | Savage, Benjamin (1485) | Won 2-0 | +191468 |
| 3legacy | 248 | Keefe, William (1321) | Won 2-1 | +151483 |
| 4legacy | 251 | Badrudin, Karim (1594) | Lost 0-2 | -161467 |
| 5legacy | 357 | Bergeron, Julien (1663) | Won 2-1 | +221489 |
| 6legacy | 291 | Lansche, Derek (1717) | Won 2-0 | +221511 |
| 7legacy | 185 | Nord, John (1548) | Won 2-1 | +181529 |
| 8legacy | 62 | Zhang, Boyang (1668) | Won 2-0 | +211550 |
| 9legacy | 66 | Evans, Mark (1792) | Lost 0-2 | -141536 |
| 10legacy | 91 | Roepke, Chris (1657) | Won 2-0 | +201556 |
| 11legacy | 64 | Sharifi, Kamran (1579) | Lost 1-2 | -171539 |
| 12legacy | 82 | Chang, Brandon (1683) | Lost 1-2 | -161523 |
| top | average opponent: 1603record: 7-5 | new rating: 1523 | ||
| Grand Prix Pittsburgh 2018 (DOM standard) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 156 | Curie, Jeremy (1574) | Lost 1-2 | -151415 |
| 2standard | 241 | Sherrin, Michael (1537) | Lost 1-2 | -161399 |
| 3standard | 410 | Conner, Sean (1464) | Won 2-0 | +191418 |
| 4standard | 342 | Collins, Scott (1371) | Won 2-0 | +171435 |
| 5standard | 260 | Gardner, Jonathan (1700) | Won 2-0 | +231458 |
| 6standard | 228 | Gelzhiser, Graham (1453) | Won 2-0 | +181476 |
| 7standard | 196 | Pastore, Kellen (1947) | Lost 0-2 | -101466 |
| top | average opponent: 1578record: 4-3 | new rating: 1466 | ||
| Grand Prix Pittsburgh 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 136 | Bonar, Chase (1558) | Lost 1-2 | -171483 |
| 2standard | 354 | Lewis, Zachery (1481) | Lost 0-2 | -181465 |
| 3standard | 597 | Froude, Damion (1462) | Lost 0-2 | -181447 |
| 4standard | 622 | Newell, Stacey (1445) | Lost 1-2 | -181429 |
| 5standard | 627 | Cilione, Nicki (1435) | Won 2-1 | +181447 |
| 6standard | 595 | Dorian, Tevan (1448) | Won 2-1 | +181465 |
| 7standard | 524 | Bollard, Liam (1537) | Lost 1-2 | -171448 |
| 8standard | 476 | Combs, Norman (1444) | Lost 1-2 | -181430 |
| top | average opponent: 1476record: 2-6 | new rating: 1430 | ||