Perez, David [USA]
Current rating: 1490
Record: 6-7
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 407 | Rohaninejad, Morteza (1607) | Lost 1-2 | -161492 |
| 2sealed | 334 | Santos, Trini (1304) | Won 2-0 | +141506 |
| 3sealed | 396 | Canales, Mark (1639) | Won 2-1 | +211527 |
| 4sealed | 339 | Duchan, Matthew (1509) | Lost 1-2 | -191508 |
| 5sealed | 412 | Zolovick, Kud (1478) | Lost 1-2 | -181490 |
| average opponent: 1507record: 2-3 | new rating: 1490 | |||
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 69 | Compton, William (1500) | Won 2-0 | +181518 |
| 2standard | 126 | Muniz, Jorge (1593) | Lost 0-2 | -171501 |
| 3standard | 352 | Hudson, Donald (1467) | Won 2-1 | +181519 |
| 4standard | 128 | Xu, Johnson (1519) | Lost 1-2 | -181501 |
| 5standard | 249 | Neyens, Christopher (1498) | Won 2-0 | +181519 |
| 6standard | 195 | Jones, Brandon 5779 (1436) | Won 2-0 | +161535 |
| 7standard | 168 | Strodl, Courtland (1674) | Lost 0-2 | -151520 |
| 8standard | 152 | Wang, Yidong (1866) | Lost 0-2 | -121508 |
| average opponent: 1569record: 4-4 | new rating: 1508 | |||