Barrera, Jacob
Current rating: 1424
Record: 3-8
| Grand Prix Portland 2018 (modern) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 151 | Zimmerman, Tobias (1539) | Lost 1-2 | -161417 |
| 2modern | 665 | Vincent, Douglas (1446) | Won 2-0 | +191436 |
| 3modern | 547 | Shanafelt, Mark (1373) | Won 2-1 | +171453 |
| 4modern | 400 | Prost, Andrejs (1788) | Lost 1-2 | -121441 |
| 5modern | 613 | Blakely, Hunter (1500) | Lost 0-2 | -171424 |
| average opponent: 1529record: 2-3 | new rating: 1424 | |||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 4 | Yueh, Edward (1497) | Lost 0-2 | -181482 |
| 2standard | 451 | Higbee, Wesley (1865) | Lost 0-2 | -111471 |
| 3standard | 741 | Sharp, Jeff (1414) | Won 2-0 | +171488 |
| 4standard | 560 | Gossard, Nathan (1464) | Lost 1-2 | -191469 |
| 5standard | 666 | Carey, Raymond (1462) | Lost 0-2 | -181451 |
| 6standard | 675 | Allen, Kelli-Ann (1467) | Lost 0-2 | -181433 |
| average opponent: 1528record: 1-5 | new rating: 1433 | |||