Harper, David
Current rating: 1530
Record: 15-14-2
| Grand Prix Charlotte 2015 (modern) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 774 | Jansen, Adam (1632) | Draw 1-1 | +11564 |
| 4modern | 787 | Rodgers, Logan (1576) | Lost 1-2 | -181546 |
| 5modern | 819 | Soldevila, Josue (1680) | Draw 1-1 | +21548 |
| 6modern | 897 | Corter, Bryant (1537) | Lost 0-2 | -181530 |
| top | average opponent: 1606record: 0-2-2 | new rating: 1530 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 36 | Krenzer, Elizabeth (1500) | Won 2-1 | +181527 |
| 2sealed | 7 | Tatley, Leah (1448) | Lost 1-2 | -201507 |
| 3sealed | 262 | Lanza, Gilberto (1500) | Won 2-0 | +181525 |
| 4sealed | 229 | Mondragon, Anakin (1518) | Lost 1-2 | -181507 |
| 5sealed | 328 | Meyer, John (1482) | Won 2-0 | +181525 |
| 6sealed | 179 | McAllister, Bruce (1506) | Won 2-1 | +171542 |
| 7sealed | 125 | Griffin, Lance (1533) | Won 2-0 | +181560 |
| 8sealed | 77 | Ryan, Owen (1575) | Won 2-0 | +181578 |
| 9sealed | 89 | Seely, Kevin (1575) | Won 2-1 | +181596 |
| 10draft | 45 | Thomas, Travis (1594) | Lost 0-2 | -181578 |
| 11draft | 90 | Lombardi, Andrew (1616) | Lost 0-2 | -171561 |
| 12draft | 111 | Ruddeforth, Brian (1570) | Lost 0-2 | -181543 |
| 13draft | 51 | Arqueros, Enrique (1541) | Won 2-1 | +181561 |
| 14draft | 1 | Chou, Willis (1505) | Won 2-0 | +171578 |
| 15draft | 80 | Efland, Zach (1718) | Lost 0-2 | -151563 |
| top | average opponent: 1545record: 9-6 | new rating: 1563 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 456 | Golle, Steven (1500) | Won 2-1 | +191483 |
| 2sealed | 297 | Marchand, Christopher (1487) | Lost 0-2 | -181465 |
| 3sealed | 301 | Hoffman, Nathaniel (1467) | Won 2-1 | +181483 |
| 4sealed | 239 | Strange, Jason (1538) | Won 2-1 | +191502 |
| 5sealed | 204 | Duterte, Daniel (1669) | Won 2-1 | +211523 |
| 6sealed | 87 | Villeneuve, Sebastien (1575) | Lost 0-2 | -171506 |
| 7sealed | 177 | Bernier, Yann (1539) | Won 2-1 | +181524 |
| 8sealed | 77 | Voellmer, Andy (1672) | Lost 0-2 | -151509 |
| top | average opponent: 1556record: 5-3 | new rating: 1509 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 265 | Murray, Matt (1498) | Won 2-1 | +181518 |
| 2modern | 40 | Conrow, Bernie (1529) | Lost 1-2 | -181500 |
| 3modern | 274 | Schulz, Karl (1500) | Lost 1-2 | -181482 |
| 4modern | 484 | Linford, Brian (1466) | Lost 1-2 | -181464 |
| top | average opponent: 1499record: 1-3 | new rating: 1464 | ||