Harper, Andrew
Current rating: 1495
Record: 6-8
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 32 | Brown, Adam (1555) | Won 2-1 | +191501 |
| 5sealed | 61 | Lax, Ari (1921) | Won 2-0 | +261527 |
| 6sealed | 35 | Layne, Josh (1747) | Lost 0-2 | -141513 |
| 7sealed | 95 | Wolansky, Steven (1782) | Won 2-0 | +221535 |
| 8sealed | 54 | Reynolds, David (1544) | Lost 1-2 | -181517 |
| 9sealed | 50 | Wescoe, Craig (1856) | Won 2-1 | +241541 |
| 10sealed | 59 | BAKER, JON R (1555) | Won 2-0 | +191560 |
| 11draft | 64 | Kendall, Ian (1600) | Lost 1-2 | -181542 |
| 12draft | 68 | Lee, Alan 2 (1606) | Lost 1-2 | -161526 |
| 13draft | 64 | Zaworski, Peter S (1552) | Lost 0-2 | -181508 |
| 14draft | 15 | Turtenwald, Owen (1796) | Lost 0-2 | -131495 |
| average opponent: 1683record: 5-6 | new rating: 1495 | |||
| Grand Prix Los Angeles 2002 (ONS rochester) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Serrano, Rafael (1500) | Won 2-0 | +181518 |
| 2sealed | 100 | Katsnelson, Vitaly (1518) | Lost 0-2 | -181500 |
| 3sealed | 134 | Reyes, Ray (1500) | Lost 0-2 | -181482 |
| average opponent: 1506record: 1-2 | new rating: 1482 | |||