Lopez, Erwin
Current rating: 1408
Record: 2-7
| Grand Prix Phoenix 2020 (pioneer) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 16 | Szoke, Mark (1482) | Lost 0-2 | -181426 |
| 2pioneer | 279 | Horn, Paul (1467) | Won 2-1 | +191445 |
| 3pioneer | 322 | Hawkins, Cody (1476) | Lost 0-2 | -171428 |
| 4pioneer | 333 | Martinez, Jose (1354) | Lost 1-2 | -201408 |
| average opponent: 1445record: 1-3 | new rating: 1408 | |||
| Grand Prix Los Angeles 2018 (M19 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 116 | Garcia, Kristian (1442) | Lost 1-2 | -191481 |
| 2standard | 258 | Neill, Ryan (1485) | Won 2-0 | +181499 |
| 3standard | 428 | Lechner, Joseph (1482) | Lost 1-2 | -181481 |
| 4standard | 400 | Hunter, Jakob (1428) | Lost 1-2 | -191462 |
| 5standard | 444 | Stahl, Brian (1464) | Lost 1-2 | -181444 |
| average opponent: 1460record: 1-4 | new rating: 1444 | |||