Jacobs, Zachary W
Current rating: 1537
Record: 5-3-1
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Miller, Ryan (1636) | Draw 1-1 | +21502 |
| 2sealed | 246 | Noel, William (1467) | Won 2-0 | +181520 |
| 3sealed | 164 | Huston, Scott (1518) | Won 2-0 | +181538 |
| 4sealed | 127 | Fitzgerald, Charles (1483) | Lost 1-2 | -191519 |
| 5sealed | 217 | Hutchison, Daniel (1657) | Lost 0-2 | -161503 |
| 6sealed | 277 | Bilz, Dylan J (1440) | Won 2-0 | +171520 |
| 7sealed | 204 | Bohlmann, Kevin (1505) | Won 2-0 | +181538 |
| 8sealed | 142 | Tan, Andy (1529) | Won 2-1 | +181556 |
| 9sealed | 94 | Lazaro, Andrew (1523) | Lost 0-2 | -191537 |
| average opponent: 1529record: 5-3-1 | new rating: 1537 | |||