Stamper, Michael
Current rating: 1445
Record: 14-19
| Grand Prix Charlotte 2015 (modern) | starting rating: 1439 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1320 | Koenecke, Thatcher (1516) | Won 2-0 | +191458 |
| 2modern | 1460 | Tobaben, Alex (1518) | Won 2-0 | +191477 |
| 3modern | 1283 | Pawloski, Francis M (1535) | Lost 0-2 | -171460 |
| 4modern | 1387 | Raines, Andrew H (1518) | Lost 0-2 | -171443 |
| 5modern | 1377 | Smith, James (1489) | Won 2-0 | +191462 |
| 6modern | 1311 | Holmes, Evan (1500) | Lost 1-2 | -171445 |
| top | average opponent: 1513record: 3-3 | new rating: 1445 | ||
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 276 | Griffin, Ellis (1557) | Lost 0-2 | -161439 |
| top | record: 0-1 | new rating: 1439 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 346 | Favretto, Dylan (1499) | Won 2-0 | +181507 |
| 2modern | 194 | Simmons, Barry (1518) | Lost 1-2 | -171490 |
| 3modern | 278 | Johnson, Matthew [ENG] (1552) | Lost 0-2 | -171473 |
| 4modern | 477 | McKay, Zachary (1482) | Lost 1-2 | -181455 |
| top | average opponent: 1513record: 1-3 | new rating: 1455 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 965 | Kennedy, Jordan (1518) | Won 2-0 | +181495 |
| 3sealed | 755 | Thomas, Gideon (1536) | Won 2-1 | +191514 |
| 4sealed | 792 | Freitas, John (1665) | Won 2-0 | +211535 |
| 5sealed | 738 | Scott-Vargas, Luis (1876) | Lost 0-2 | -121523 |
| 6sealed | 750 | Runyon, John (1705) | Lost 1-2 | -151508 |
| 7sealed | 858 | Money, Kevin (1456) | Lost 1-2 | -191489 |
| top | average opponent: 1626record: 3-3 | new rating: 1489 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 133 | Shiels, Brian (1650) | Lost 1-2 | -161494 |
| 3standard | 365 | Vaneman, Robert (1554) | Lost 1-2 | -171477 |
| 4standard | 585 | Esposito, Michael (1483) | Won 2-0 | +191496 |
| 5standard | 549 | Cohen, Heather (1450) | Lost 1-2 | -191477 |
| top | average opponent: 1534record: 1-3 | new rating: 1477 | ||
| Grand Prix Charleston 2012 (RTR standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 121 | McEnaney, Corey (1519) | Won 2-0 | +191483 |
| 3standard | 33 | Cameron, David (1485) | Won 2-0 | +181501 |
| 4standard | 61 | Schneider, Travis (1543) | Won 2-1 | +191520 |
| 5standard | 30 | Ball, Chris K (1534) | Lost 0-2 | -181502 |
| 6standard | 76 | Maynor, Arnold (1590) | Won 2-1 | +201522 |
| 7standard | 17 | Thurman, Michael (1576) | Lost 0-2 | -171505 |
| 8standard | 47 | Anderson, Mitchell (1536) | Won 2-0 | +181523 |
| 9standard | 50 | Samson, Daniel (1780) | Lost 1-2 | -131510 |
| top | average opponent: 1571record: 5-3 | new rating: 1510 | ||
| Grand Prix Atlanta 2012 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 78 | Richardson, Elizabeth (1500) | Won 2-0 | +181518 |
| 2legacy | 104 | Cottell, Peter (1518) | Lost 0-2 | -181500 |
| 3legacy | 299 | Gianini, Lucas N (1499) | Lost 1-2 | -181482 |
| 4legacy | 397 | Page, Jonathan (1482) | Lost 1-2 | -181464 |
| top | average opponent: 1500record: 1-3 | new rating: 1464 | ||