Kimball-sperberg, Sam
Current rating: 1486
Record: 12-14
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 66 | Potts, Charles (1479) | Won 2-1 | +181521 |
| 3sealed | 141 | Scalzo, Anthony (1456) | Won 2-0 | +171538 |
| 4sealed | 112 | Kovac, Chase (1612) | Lost 1-2 | -171521 |
| 5sealed | 129 | Fruehauf, Jake (1546) | Lost 1-2 | -181503 |
| 6sealed | 170 | Chernobryvchenko, Mikhail (1567) | Lost 1-2 | -171486 |
| top | average opponent: 1532record: 2-3 | new rating: 1486 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 244 | Henning, Nick (1774) | Lost 0-2 | -121433 |
| 3sealed | 411 | Zhang, Stephen (1731) | Lost 0-2 | -131420 |
| 4sealed | 645 | Helbig, Ben (1454) | Won 2-0 | +191439 |
| 5sealed | 448 | Scher, Gabe (1504) | Won 2-1 | +191458 |
| 6sealed | 312 | Richardson, Kieran (1523) | Won 2-1 | +191477 |
| 7sealed | 197 | Sapp, Joseph (1455) | Won 2-1 | +181495 |
| 8sealed | 199 | Hakim, Joshua (1534) | Won 2-1 | +181513 |
| 9sealed | 145 | Ryan C., (1573) | Won 2-1 | +201533 |
| 10sealed | 39 | Wilson, Orion (1581) | Lost 1-2 | -181515 |
| 11draft | 29 | Leister, Nicole (1648) | Won 2-0 | +211536 |
| 12draft | 26 | Istfan, Raeef (1644) | Lost 0-2 | -161520 |
| 13draft | 82 | Munk, Andreas (1523) | Lost 1-2 | -181502 |
| 14draft | 4 | Rosen, Drew (1515) | Won 2-1 | +181520 |
| 15draft | 27 | Tolzdorf, Travis (1577) | Lost 0-2 | -171503 |
| top | average opponent: 1574record: 8-6 | new rating: 1503 | ||
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 199 | Moore, Tyler (1500) | Lost 1-2 | -181482 |
| 2standard | 367 | Rider, Derek (1458) | Lost 0-2 | -181464 |
| 3standard | 529 | MILLER, MARK (1464) | Won 2-1 | +181482 |
| 4standard | 571 | Negri, Kazu (1481) | Won 2-1 | +181500 |
| 5standard | 448 | Parker, Jon (1517) | Lost 0-2 | -181482 |
| 6standard | 454 | Yosmanovich, Peter (1437) | Lost 1-2 | -191463 |
| 7standard | 395 | VANCAMP, MATT (1463) | Lost 0-2 | -181445 |
| top | average opponent: 1474record: 2-5 | new rating: 1445 | ||