Sayers, John
Current rating: 1449
Record: 3-6
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 423 | Mark, Benjamin (1500) | Won 2-0 | +181518 |
| 2modern | 421 | Vaughn, Wade (1586) | Lost 1-2 | -171501 |
| 3modern | 609 | Gough, Marcus (1549) | Lost 0-2 | -171484 |
| 4modern | 1096 | Bentley, Thomas (1520) | Won 2-1 | +191503 |
| 5modern | 978 | Tam, Gary (1498) | Won 2-0 | +181521 |
| 6modern | 468 | Price, Brandon (1520) | Lost 1-2 | -181503 |
| 7modern | 588 | Marx, Matthew (1458) | Lost 0-2 | -191484 |
| 8modern | 587 | Bachaud, Louis (1525) | Lost 0-2 | -171467 |
| 9modern | 477 | Vaughn, Chris (1464) | Lost 1-2 | -181449 |
| average opponent: 1513record: 3-6 | new rating: 1449 | |||