Marques, John
Current rating: 1427
Record: 2-6
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 399 | Wills, Douglas (1500) | Lost 0-2 | -181482 |
| 2sealed | 630 | Placone, Tristan (1447) | Lost 1-2 | -191463 |
| 3sealed | 841 | Bethune, Timothy (1464) | Won 2-1 | +181481 |
| 4sealed | 772 | Drews, Ken (1455) | Lost 1-2 | -181463 |
| 5sealed | 764 | Kelly, Sean 695 (1463) | Lost 1-2 | -181445 |
| 6sealed | 751 | Cai, Michael (1451) | Lost 1-2 | -181427 |
| 7sealed | 663 | Kaiser, Ursa (1431) | Won 2-0 | +181445 |
| 8sealed | 553 | DeWinter, Amberle (1439) | Lost 0-2 | -181427 |
| average opponent: 1456record: 2-6 | new rating: 1427 | |||