Massaro, Michael
Current rating: 1499
Record: 5-5
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| B1sealed | 343 | Zebib, Ziad (1465) | Lost 1-2 | -191518 |
| B2sealed | 700 | Philbrook, Christopher (1451) | Lost 0-2 | -191499 |
| average opponent: 1458record: 0-2 | new rating: 1499 | |||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 377 | Morales, Rannie (1500) | Won 2-0 | +181518 |
| 2standard | 132 | Swanson, Sam (1597) | Lost 1-2 | -171501 |
| 3standard | 343 | Harberg, Nicholas (1539) | Lost 1-2 | -171484 |
| 4standard | 502 | Dillon, Josiah (1439) | Won 2-1 | +171501 |
| 5standard | 384 | Orr, Jonathan (1673) | Lost 0-2 | -151486 |
| 6standard | 456 | Riggs, Joseph (1422) | Won 2-0 | +171503 |
| 7standard | 357 | Ruiz, Gustavo (1500) | Won 2-1 | +181521 |
| 8standard | 244 | Brittain, Jacob (1423) | Won 2-0 | +161537 |
| average opponent: 1512record: 5-3 | new rating: 1537 | |||