Kosier, Adam
Current rating: 1539
| Grand Prix Columbus 2012 (modern) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 57 | Sharfman, David (1748) | Won 2-0 | +211571 |
| 5modern | 58 | Mehochko, Mark (1563) | Lost 1-2 | -181553 |
| 6modern | 116 | Holmes, Eric (1494) | Won 2-0 | +171570 |
| 7modern | 68 | Boutin, Jon (1500) | Won 2-0 | +171587 |
| 8modern | 43 | Kelly, Peter (1622) | Lost 1-2 | -181569 |
| 9modern | 90 | Bauman, Eric (1636) | Won 2-1 | +201589 |
| 10modern | 65 | Muzio, Timothy (1540) | Draw 1-1 | -11588 |
| 11modern | 48 | Geary, Justin (1765) | Lost 0-2 | -151573 |
| 12modern | 61 | Silberman, Philip (1598) | Lost 0-2 | -181555 |
| 13modern | 68 | Newill, Jason W (1654) | Lost 1-2 | -161539 |
| top | average opponent: 1612record: 4-5-1 | new rating: 1539 | ||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 45 | Smith, Noah (1498) | Won 2-0 | +171531 |
| 2legacy | 289 | Maday, Tony (1522) | Won 2-1 | +181549 |
| 3legacy | 188 | Osinski, Chris M (1500) | Lost 1-2 | -191530 |
| 4legacy | 335 | Cooper, Stephen (1525) | Won 2-1 | +181548 |
| 5legacy | 197 | Nguyen, Michael (1557) | Won 2-0 | +181566 |
| 6legacy | 70 | Garber, Jacob (1635) | Won 2-1 | +201586 |
| 7legacy | 86 | Becvar, Nick (1601) | Lost 1-2 | -181568 |
| 8legacy | 161 | O'Grady, Patrick (1556) | Lost 1-2 | -181550 |
| top | average opponent: 1549record: 5-3 | new rating: 1550 | ||
| Grand Prix Columbus 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Bellamy, Duane (1446) | Won 2-0 | +171517 |
| 2sealed | 120 | Hefner, Eric (1492) | Won 2-1 | +181535 |
| 3sealed | 60 | Damm, Cody (1518) | Won 2-1 | +171552 |
| 4sealed | 63 | Kickery, Ben (1423) | Lost 0-2 | -201532 |
| 5sealed | 83 | Manolakos, Bryan (1497) | Lost 0-2 | -191513 |
| 6sealed | 193 | Corbitt, Tyler (1522) | Lost 0-2 | -181495 |
| 7sealed | 187 | Dematteo, Matthew (1502) | Won 2-0 | +191514 |
| 8sealed | 146 | Durham, Stephen (1520) | Won 2-1 | +181532 |
| 9sealed | 109 | Kerns, Jason (1534) | Lost 1-2 | -181514 |
| top | average opponent: 1495record: 5-4 | new rating: 1514 | ||