Machuca, Ian
Current rating: 1586
Record: 11-7-1
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 253 | Radford, Travis (1517) | Won 2-0 | +191483 |
| 2standard | 217 | Quach, Peter (1719) | Lost 0-2 | -141469 |
| 3standard | 641 | Fox, Chris (1570) | Lost 0-2 | -161453 |
| 4standard | 672 | Gilbert, Tyson (1402) | Won 2-0 | +171470 |
| 5standard | 435 | Lehosit, Christopher (1499) | Won 2-1 | +191489 |
| 6standard | 349 | Fyfe, Casey (1557) | Won 2-1 | +191508 |
| 7standard | 158 | Sonquist, Alec (1557) | Lost 0-2 | -171491 |
| 8standard | 351 | Gray, Jeremy (1455) | Won 2-0 | +171508 |
| 9standard | 224 | Francis, Mitchell (1547) | Won 0-0 | +191527 |
| 10standard | 174 | Roth, Adam (1518) | Draw 1-1 | 01527 |
| 11standard | 155 | Downey, Shane (1570) | Lost 0-2 | -171510 |
| 12standard | 175 | Korbar, Dennis (1508) | Won 2-0 | +181528 |
| 13standard | 140 | Barta, Michael [USA] (1558) | Won 2-0 | +181546 |
| 14standard | 108 | Laid, Jonas (1606) | Won 2-1 | +191565 |
| 15standard | 80 | Kahovec, Nate (1721) | Won 1-0 | +211586 |
| average opponent: 1554record: 10-4-1 | new rating: 1586 | |||
| Grand Prix Portland 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 185 | Dignam, Josh (1500) | Won 2-0 | +181518 |
| 2modern | 78 | McIntyre, Trenton (1518) | Lost 0-2 | -181500 |
| 3modern | 277 | Tomlinson, Matt (1500) | Lost 1-2 | -181482 |
| 4modern | 360 | Hixon, Dennis (1488) | Lost 0-2 | -181464 |
| average opponent: 1501record: 1-3 | new rating: 1464 | |||