Tosi, Roberto
Current rating: 1404
Record: 9-16-2
| Grand Prix London 2018 (RIX limited) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 465 | Alvarez, Javier (1599) | Draw 1-1 | +31417 |
| 2sealed | 444 | Bennacef, Ahmed (1412) | Lost 0-2 | -181399 |
| 3sealed | 817 | Yu, Haiyue (1608) | Won 2-1 | +221421 |
| 4sealed | 667 | Modos, Dezso (1488) | Lost 0-2 | -171404 |
| top | average opponent: 1527record: 1-2-1 | new rating: 1404 | ||
| Grand Prix Birmingham 2017 (modern) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 429 | Rushent, Josh (1560) | Lost 0-2 | -161450 |
| 2modern | 664 | Bentinck, Will (1433) | Won 0-0 | +181468 |
| 3modern | 465 | Richards, Branoc (1391) | Lost 0-2 | -201448 |
| 4modern | 725 | Lew, Wei Xiong (1482) | Lost 0-2 | -171431 |
| 5modern | 701 | Plews, Peter (1461) | Lost 1-2 | -171414 |
| top | average opponent: 1466record: 1-4 | new rating: 1414 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 131 | Moore, William [ENG] (1500) | Lost 0-2 | -181437 |
| 2sealed | 888 | Jones, Guy (1486) | Won 2-0 | +191456 |
| 3sealed | 723 | Costa, Joao (1448) | Lost 0-2 | -181438 |
| 4sealed | 999 | Balcells, Josep (1574) | Won 2-1 | +211459 |
| 5sealed | 792 | Bonanno, Massimiliano (1567) | Lost 0-2 | -161443 |
| 6sealed | 930 | Glen, Alasdair (1520) | Won 2-0 | +191462 |
| 7sealed | 576 | Major, Steven (1520) | Won 2-0 | +191481 |
| 8sealed | 581 | Burns, Lawrence (1404) | Won 2-1 | +171498 |
| 9sealed | 430 | Lister, Christian (1604) | Won 2-0 | +201518 |
| 10draft | 165 | Bogason, Jon (1555) | Lost 0-2 | -181500 |
| 11draft | 163 | Colombi, Giovanni (1616) | Lost 0-2 | -161484 |
| 12draft | 85 | Lepisto, Martti (1474) | Lost 0-2 | -181466 |
| 13draft | 144 | Nisti, Luca (1403) | Won 2-0 | +171483 |
| 14draft | 254 | Davies, Chris8854 (1494) | Draw 1-1 | 01483 |
| 15draft | 226 | Grunewald, Olivier (1546) | Lost 0-2 | -171466 |
| top | average opponent: 1514record: 7-7-1 | new rating: 1466 | ||
| Grand Prix Milan 2014 (JOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 98 | Fior, Daniel (1846) | Lost 0-2 | -121488 |
| 4sealed | 325 | battistoni, emanuele (1523) | Lost 0-2 | -171471 |
| 5sealed | 368 | Sander, Andreas (1577) | Lost 0-2 | -161455 |
| top | average opponent: 1649record: 0-3 | new rating: 1455 | ||