Harris, David R
Current rating: 1567
Record: 8-5-1
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 10 | Scarton, Eric M (1500) | Won 2-1 | +181539 |
| 2standard | 217 | Mayer, Kenny (1478) | Won 2-0 | +171556 |
| 3standard | 61 | Young, Garett (1488) | Won 2-0 | +171573 |
| 4standard | 178 | Huang, Hao-Shan (1875) | Won 2-0 | +231596 |
| 5standard | 44 | Horton, Joshua (1477) | Lost 1-2 | -201576 |
| 6standard | 167 | McDuffie, Korey (1939) | Draw 1-1 | +61582 |
| 7standard | 143 | Beverley, Matthew (1722) | Lost 0-2 | -151567 |
| average opponent: 1640record: 4-2-1 | new rating: 1567 | |||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 217 | Cline, Matthew (1583) | Won 2-0 | +201520 |
| 2standard | 173 | Villareal, Gilbert (1518) | Lost 1-2 | -191501 |
| 3standard | 201 | Hendrickson, Mark (1646) | Lost 0-2 | -151486 |
| 4standard | 432 | Thurber, Matthew (1468) | Won 2-0 | +181504 |
| 5standard | 428 | Callahan, Regan (1488) | Lost 1-2 | -191485 |
| 6standard | 353 | Taylor, Jason R (1482) | Won 2-0 | +181503 |
| 7standard | 285 | Anzai, Inari (1500) | Won 2-0 | +181521 |
| average opponent: 1526record: 4-3 | new rating: 1521 | |||