Garrison, Joseph
Current rating: 1532
| Grand Prix Richmond 2017 (AKH limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 222 | Boston, Neil (1481) | Won 2-1 | +171512 |
| 2sealed | 270 | Munson, Victor (1517) | Won 2-1 | +181530 |
| 3sealed | 197 | Scott, Michael (1642) | Won 2-0 | +201550 |
| 4sealed | 27 | Schlom, Christoph (1651) | Lost 0-2 | -161534 |
| 5sealed | 239 | Barge, Spencer (1696) | Lost 0-2 | -151519 |
| 6sealed | 457 | Puccio, Scott (1583) | Won 2-0 | +191538 |
| 7sealed | 269 | Keddell, Peter (1610) | Won 2-0 | +201558 |
| 8sealed | 105 | Mallikarjunan, Sundar (1554) | Won 2-0 | +181576 |
| 9sealed | 154 | Majlaton, Alex (1988) | Lost 0-2 | -111565 |
| 10draft | 707 | Winata, Andrew (1544) | Lost 0-2 | -191546 |
| 12draft | 696 | Schroeder, Max (1674) | Lost 1-2 | -151531 |
| 13draft | 771 | Breslin, David (1576) | Won 2-0 | +191550 |
| 14draft | 776 | Clune, Ryan (1553) | Lost 0-2 | -181532 |
| top | average opponent: 1621record: 7-6 | new rating: 1532 | ||
| Grand Prix Orlando 2017 (AER limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 718 | Spencer, Michael (1635) | Lost 0-2 | -161539 |
| 2sealed | 904 | Malloff, Ian (1400) | Won 2-0 | +151554 |
| 3sealed | 961 | Pratt, Ryan (1500) | Lost 1-2 | -191535 |
| 4sealed | 1073 | Llanes, Anthony (1539) | Lost 0-2 | -181517 |
| 5sealed | 1091 | Wiggains, Lance (1466) | Won 2-0 | +171534 |
| 6sealed | 1017 | Murray, Tom (1418) | Lost 0-2 | -201514 |
| 7sealed | 974 | Fox, Andrew (1417) | Lost 0-2 | -191495 |
| top | average opponent: 1482record: 2-5 | new rating: 1495 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 172 | Nyhuis, Daniel (1528) | Won 2-1 | +191519 |
| 2sealed | 4 | Aron, Jason (1478) | Won 2-0 | +171536 |
| 3sealed | 89 | Stanley, Brett (1537) | Lost 0-2 | -181518 |
| 4sealed | 236 | Baker, Daniel 516 (1500) | Won 2-0 | +171535 |
| 5sealed | 157 | Keith, Joseph (1561) | Won 2-0 | +191554 |
| 6sealed | 34 | Ortiz, Lance (1499) | Lost 1-2 | -191535 |
| 7sealed | 109 | Carter, Thomas (1517) | Won 2-1 | +181553 |
| 8sealed | 32 | Tankus, Nathan (1533) | Won 2-1 | +171570 |
| 9sealed | 76 | Parker, Gregory (1748) | Lost 1-2 | -151555 |
| top | average opponent: 1544record: 6-3 | new rating: 1555 | ||