Koenig, Joseph
Current rating: 1516
| Grand Prix Daytona Beach 2007 (LRW limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 85 | Daley, Joshua (1500) | Won 2-1 | +171535 |
| 2sealed | 52 | Smith, Harris (1546) | Lost 1-2 | -171518 |
| 3sealed | 179 | Cox, Benjamin (1555) | Lost 0-2 | -181500 |
| 4sealed | 265 | Bakula Sr., Thomas (1431) | Won 2-1 | +171517 |
| 5sealed | 160 | Aziz, Aras (1493) | Won 2-1 | +171534 |
| 6sealed | 108 | Welch, Miles (1517) | Lost 0-2 | -181516 |
| top | average opponent: 1507record: 3-3 | new rating: 1516 | ||
| Grand Prix Boston 2005 (extended) | starting rating: 1535 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 35 | Glickenhaus, Josh (1500) | Won 2-0 | +181553 |
| 2extended | 97 | Pazona, Jon (1561) | Lost 1-2 | -181535 |
| 3extended | 147 | Stickney, Adam (1552) | Won 2-1 | +181553 |
| 4extended | 192 | Taylor, Eric (1623) | Lost 0-2 | -161537 |
| 5extended | 208 | Rocha, Jerret (1484) | Lost 0-2 | -191518 |
| top | average opponent: 1544record: 2-3 | new rating: 1518 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 34 | Ballou, Patrick (1447) | Lost 1-2 | -191481 |
| 2block | 143 | Tilly, Jeremy (1411) | Won 2-0 | +171498 |
| 3block | 155 | Keith, Jody (1501) | Won 2-1 | +181516 |
| 4block | 105 | Norris, Jeremiah (1520) | Won 2-0 | +181534 |
| 5block | 75 | Wiener, Sam (1537) | Won 2-0 | +181552 |
| 6block | 18 | Cordell, Mark (1557) | Won 2-1 | +181570 |
| 7block | 36 | Parker, Zach (1646) | Lost 1-2 | -171553 |
| 8block | 50 | Hutchings, Jack (1557) | Lost 1-2 | -181535 |
| top | average opponent: 1522record: 5-3 | new rating: 1535 | ||