Samuels, Don
Current rating: 1482
Record: 15-16-2
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 223 | Chow, Chris (1500) | Lost 0-2 | -181482 |
| 2sealed | 780 | Terrio, Stephen (1482) | Won 2-1 | +181500 |
| 3sealed | 774 | Reigle, Henry (1471) | Lost 0-2 | -181482 |
| top | average opponent: 1484record: 1-2 | new rating: 1482 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 269 | Daugherty, Nicole (1500) | Won 2-0 | +181537 |
| 2modern | 278 | Arepally, Rohan (1518) | Lost 0-2 | -191518 |
| 3modern | 363 | Weldin, Johnathan (1500) | Lost 1-2 | -181500 |
| top | average opponent: 1506record: 1-2 | new rating: 1500 | ||
| Grand Prix Orlando 2012 (ISD standard) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 95 | Schott, Andrew (1518) | Lost 0-2 | -191518 |
| 3standard | 254 | Smith, Allie (1481) | Won 2-0 | +181536 |
| 4standard | 194 | Pullen, Timothy (1484) | Lost 0-2 | -191517 |
| 5standard | 277 | Tracy, Zachery (1504) | Lost 0-2 | -191498 |
| 6standard | 332 | Nevison, Nathaniel (1482) | Won 2-0 | +181516 |
| 7standard | 232 | Sugranes, Oscar (1499) | Won 2-0 | +181534 |
| 8standard | 203 | Sui, Xin (1741) | Lost 0-2 | -141520 |
| 9standard | 194 | Hickey, Taylor A (1499) | Draw 1-1 | -11519 |
| top | average opponent: 1526record: 3-4-1 | new rating: 1519 | ||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 103 | Hu, Haibing (1705) | Lost 1-2 | -161555 |
| 3sealed | 267 | Hafter, David (1516) | Lost 0-2 | -181537 |
| top | average opponent: 1611record: 0-2 | new rating: 1537 | ||
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 101 | Bishop, James (1500) | Won 2-1 | +171555 |
| 2sealed | 54 | Cordell, Kenneth (1447) | Lost 1-2 | -201535 |
| 3sealed | 196 | Gill, Bryon (1500) | Won 2-1 | +171552 |
| 4sealed | 144 | Jackson, Conrad (1518) | Lost 0-2 | -181534 |
| 5sealed | 212 | Paschal, David (1507) | Won 2-1 | +171551 |
| 6sealed | 159 | Brady, Michael (1572) | Draw 1-1 | +11552 |
| 7sealed | 137 | Wong, Ben (1589) | Won 2-1 | +181570 |
| 8sealed | 97 | Lopez, Michael [DOM] (1537) | Won 2-0 | +181588 |
| 9sealed | 69 | Cunningham, Eric (1650) | Lost 1-2 | -171571 |
| top | average opponent: 1536record: 5-3-1 | new rating: 1571 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 59 | Jarmak, Chris (1500) | Lost 1-2 | -181482 |
| 2block | 133 | Bologna, Will (1482) | Won 2-1 | +181500 |
| 3block | 100 | Ballard, Matthew (1499) | Won 2-1 | +181518 |
| 4block | 114 | Browne, Kristian (1500) | Won 2-0 | +181536 |
| 5block | 100 | Gonzalez, John (1525) | Won 2-1 | +171553 |
| 6block | 64 | Rogasner, Gabriel (1605) | Lost 0-2 | -171536 |
| 7block | 47 | Martin, Josh (1626) | Won 2-1 | +201556 |
| 8block | 40 | Martin, David (1535) | Lost 1-2 | -181538 |
| top | average opponent: 1534record: 5-3 | new rating: 1538 | ||