Costa, Alessandro
Current rating: 1407
Record: 9-15
| Grand Prix Bologna 2019 (legacy) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 157 | Calo, Alessandro (1500) | Won 2-1 | +181498 |
| 2legacy | 137 | Lihoreau, Ibai (1785) | Lost 0-2 | -131485 |
| 3legacy | 333 | Calabuig Baquedano, Angel (1449) | Lost 1-2 | -191466 |
| 4legacy | 623 | Della Bartola, Chiara (1482) | Lost 1-2 | -171449 |
| 5legacy | 657 | Adami, Nicola (1466) | Lost 1-2 | -181431 |
| 6legacy | 596 | Holmstedt, Rolf (1059) | Lost 1-2 | -241407 |
| top | average opponent: 1457record: 1-5 | new rating: 1407 | ||
| Grand Prix Bilbao 2019 (modern) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 191 | Gomez Martinez, Enrique (1584) | Won 2-0 | +201491 |
| 4modern | 79 | Karalic, Matija (1519) | Lost 0-2 | -181473 |
| 5modern | 319 | Crespo, Zurine (1462) | Won 2-0 | +181491 |
| 6modern | 162 | Wiktorzak, Piotr (1742) | Lost 1-2 | -131478 |
| 7modern | 150 | Vidinliev, Vladimir (1538) | Lost 1-2 | -171461 |
| 8modern | 250 | Martin Burgos, Alejandro (1517) | Won 2-0 | +191480 |
| top | average opponent: 1560record: 3-3 | new rating: 1480 | ||
| Grand Prix Bologna 2016 (modern) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 172 | Marchetto, Paolo (1500) | Lost 1-2 | -191490 |
| 2modern | 670 | Molteni, Luca (1482) | Lost 1-2 | -181472 |
| 3modern | 1052 | Wheat, Matt (1465) | Won 2-1 | +181490 |
| 4modern | 289 | Simoncini, Stefano Fudo (1530) | Won 2-1 | +191509 |
| 5modern | 717 | Ramaccia, Gianluca (1463) | Lost 0-2 | -191490 |
| 6modern | 827 | Viliani, Giacomo (1418) | Lost 0-2 | -191471 |
| top | average opponent: 1476record: 2-4 | new rating: 1471 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 12 | Biasio, Stefano (1599) | Lost 0-2 | -161484 |
| 4modern | 507 | Zec, Nikola (1520) | Won 2-1 | +181502 |
| 5modern | 212 | Hollos, Peter (1725) | Won 2-1 | +221524 |
| 6modern | 63 | Picciafuochi, Riccardo (1609) | Lost 1-2 | -161508 |
| 7modern | 176 | Kardas, Adrian (1514) | Won 2-0 | +181526 |
| 8modern | 185 | Oggioni, Carloalberto (1550) | Lost 1-2 | -171509 |
| top | average opponent: 1586record: 3-3 | new rating: 1509 | ||