Jacobson, Matthew
Current rating: 1484
Record: 8-9
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 27 | Hayama, Jun (1500) | Won 2-1 | +181522 |
| 2sealed | 216 | D680, Zikang (1518) | Won 2-1 | +181540 |
| 3sealed | 150 | Johnson, Craig (1658) | Lost 1-2 | -161524 |
| 4sealed | 231 | Marshall, Brandon (1429) | Lost 1-2 | -201504 |
| 5sealed | 279 | Rodriguez, Brian (1464) | Won 2-1 | +171521 |
| 6sealed | 118 | Derdzinski, Mark (1470) | Lost 0-2 | -191502 |
| 7sealed | 361 | Duddy, Brian (1509) | Won 2-0 | +181520 |
| 8sealed | 235 | Frank, Matt (1502) | Lost 0-2 | -181502 |
| 9sealed | 226 | Kim, Noa (1503) | Lost 0-2 | -181484 |
| average opponent: 1506record: 4-5 | new rating: 1484 | |||
| Grand Prix Portland 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 82 | Brogli, Jacob (1500) | Won 2-0 | +181518 |
| 2modern | 186 | Teller, Tj (1516) | Lost 1-2 | -181500 |
| 3modern | 223 | Paris, Scott (1503) | Lost 1-2 | -181482 |
| 4modern | 331 | Nguyen, James (1703) | Lost 1-2 | -141468 |
| 5modern | 413 | KEMP, JAIME (1465) | Won 2-0 | +181486 |
| 6modern | 308 | Bissonette, Alex (1481) | Lost 1-2 | -181468 |
| 7modern | 294 | Rider, Dominic (1463) | Won 2-0 | +181486 |
| 8modern | 86 | Johnston, Blake D (1484) | Won 2-1 | +181504 |
| average opponent: 1514record: 4-4 | new rating: 1504 | |||