Sebaste, Walter
Current rating: 1504
Record: 4-4
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 472 | Dillard, Zachary (1546) | Won 2-0 | +191519 |
| 2standard | 210 | Thompson, Kirk (1498) | Won 2-1 | +171536 |
| 3standard | 242 | Gellert, Kyle (1883) | Lost 0-1 | -111525 |
| 4standard | 388 | Wilson, Tyler (1455) | Lost 0-2 | -201505 |
| 5standard | 458 | Tonkin, Adam (1499) | Won 2-0 | +181523 |
| 6standard | 244 | Layton, David (1480) | Won 2-0 | +171540 |
| 7standard | 202 | Castorini, Victor (1486) | Lost 0-2 | -191521 |
| 8standard | 401 | Bianco, John (1528) | Lost 1-2 | -171504 |
| average opponent: 1547record: 4-4 | new rating: 1504 | |||