Pero, Yiannis
Current rating: 1524
| Grand Prix Copenhagen 2018 (DOM standard) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 87 | Jensen, Marcus (1500) | Won 2-0 | +171540 |
| 2standard | 98 | Bengtsson, Erik (1256) | Won 2-1 | +131553 |
| 3standard | 130 | Pastukhov, Sergiy (1621) | Lost 0-2 | -161537 |
| 4standard | 171 | Le Francois, Remi (1649) | Lost 0-2 | -161521 |
| 5standard | 192 | Christensen, Jesper (1734) | Won 2-1 | +221543 |
| 6standard | 189 | Narmontas, Povilas (1494) | Lost 1-2 | -191524 |
| top | average opponent: 1542record: 3-3 | new rating: 1524 | ||
| Grand Prix Gothenburg 2013 (DGM limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 62 | Tell, Jonathan (1482) | Won 2-0 | +191468 |
| 2sealed | 120 | Wilson, Anton (1499) | Won 2-0 | +181486 |
| 3sealed | 156 | Fladberg, Oyvind Andreas (1486) | Won 2-0 | +181504 |
| 4sealed | 198 | Luis, Manuel (1600) | Won 2-0 | +201524 |
| 5sealed | 63 | Bergen, Wesley (1540) | Lost 0-2 | -181506 |
| 6sealed | 133 | Brendemuhl, Bernd (1669) | Won 2-1 | +211527 |
| 7sealed | 28 | Larsson, Joel (1827) | Lost 1-2 | -131514 |
| 8sealed | 75 | Eriksson, Andreas (1586) | Won 2-1 | +201534 |
| 9sealed | 33 | Rachid, Denniz (1944) | Lost 0-2 | -111523 |
| top | average opponent: 1626record: 6-3 | new rating: 1523 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 48 | Van Der Velden, Thijs (1500) | Lost 0-2 | -181482 |
| 2sealed | 671 | Ross, Jamie (1638) | Lost 0-2 | -151467 |
| 3sealed | 801 | Osterfeld, Thomas (1500) | Lost 1-2 | -181449 |
| 4sealed | 872 | Sharp, Martin (1445) | Won 2-1 | +181467 |
| 5sealed | 761 | Ashall, James (1449) | Lost 0-2 | -181449 |
| top | average opponent: 1506record: 1-4 | new rating: 1449 | ||