Howell, Marcus
Current rating: 1446
Record: 3-6
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 420 | Zaffino, Kyle (1500) | Lost 0-2 | -181482 |
| 2legacy | 663 | Vickers, Adam (1482) | Lost 0-2 | -181464 |
| 3legacy | 647 | Gebhart, Michael (1481) | Lost 0-2 | -181446 |
| 4legacy | 694 | Jaggers, Justin (1446) | Won 2-0 | +181464 |
| 5legacy | 655 | Moline, Katie (1463) | Won 2-0 | +181482 |
| 6legacy | 603 | Coe, Nelson C (1484) | Lost 0-2 | -181464 |
| 7legacy | 564 | Monroe, Chris J (1466) | Lost 0-2 | -181446 |
| 8legacy | 527 | Castellon, Michael A (1445) | Won 2-0 | +181464 |
| 9legacy | 496 | Theisen, Joshua J (1464) | Lost 0-2 | -181446 |
| average opponent: 1470record: 3-6 | new rating: 1446 | |||