Marroccoli, David
Current rating: 1590
Record: 9-5-1
| Grand Prix London 2019 (WAR sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| B1sealed | 968 | Easton, Jonathan (1449) | Won 2-0 | +171517 |
| B2sealed | 933 | Halipre, Thomas (1519) | Won 2-1 | +181535 |
| B3sealed | 899 | Harle, Thomas (1821) | Lost 1-2 | -131522 |
| B4sealed | 984 | Quinn, Andrew (1546) | Won 2-0 | +191541 |
| B5sealed | 906 | Sukaitis, Tomas (1869) | Won 2-1 | +231564 |
| B6sealed | 915 | Wiesbeck, Maximilian (1537) | Won 2-0 | +181582 |
| B7sealed | 891 | Geffroy, Olivier (1567) | Won 2-0 | +181600 |
| C1sealed | 295 | Bazhenov, Eugene (1592) | Lost 0-2 | -181582 |
| sealed | 70 | Kiyonaga, Case (1685) | Won 2-0 | +191601 |
| sealed | 7 | Ornolfsson, Thorlakur Matthias (1685) | Draw 1-1 | +21603 |
| sealed | 22 | Shimazaki, Ryota (1772) | Lost 1-2 | -151588 |
| sealed | 42 | Martins, Mateus (1792) | Lost 0-2 | -141574 |
| sealed | 234 | Ciardi, Claudio (1486) | Won 2-0 | +161590 |
| sealed | 219 | Bischoff, Rene (1613) | Won 2-0 | +181608 |
| sealed | 208 | Thijs, Erik (1609) | Lost 0-2 | -181590 |
| average opponent: 1636record: 9-5-1 | new rating: 1590 | |||