O'Fallon, Zach
Current rating: 1403
Record: 2-7
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 617 | Walker, Chris (1500) | Lost 0-2 | -181482 |
| 2standard | 707 | Rhodes, Ethan (1398) | Lost 0-2 | -201462 |
| 3standard | 701 | Uhrich, Theodore (1461) | Lost 0-2 | -181444 |
| 4standard | 750 | Tornga, Cavan (1307) | Lost 0-2 | -201424 |
| 5standard | 753 | Carlson, Braden (1426) | Won 2-0 | +181442 |
| 6standard | 682 | Bartlog, Boris (1440) | Lost 0-2 | -181424 |
| 7standard | 614 | Rautenbach, Nicky (1406) | Won 1-0 | +181442 |
| 8standard | 496 | Branstrom, Brillig (1447) | Lost 0-2 | -181424 |
| 9standard | 423 | Sindle, Steven (1286) | Lost 0-2 | -211403 |
| average opponent: 1408record: 2-7 | new rating: 1403 | |||