Stone, Duncan
Current rating: 1450
Record: 1-4
| Grand Prix Portland 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 418 | Lee, Valerian (1701) | Lost 1-2 | -141486 |
| 2modern | 680 | Peymani, Aryan (1483) | Won 2-0 | +181504 |
| 3modern | 566 | McCommas, Kyle (1501) | Lost 1-2 | -181486 |
| 4modern | 631 | Dolato, Michael (1481) | Lost 0-2 | -191467 |
| 5modern | 217 | Schimmels, Aubrey (1472) | Lost 0-2 | -171450 |
| average opponent: 1528record: 1-4 | new rating: 1450 | |||