Magganiotis, John
Current rating: 1467
Record: 3-5
| Grand Prix Barcelona 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 297 | Pinto, Cesar (1482) | Lost 1-2 | -181482 |
| 2modern | 454 | Granados, Xavier (1733) | Won 2-0 | +221504 |
| 3modern | 625 | Sadowski, Pawel (1540) | Lost 0-2 | -171487 |
| 4modern | 609 | Jorgensen, Steffen Storm (1430) | Won 2-0 | +171504 |
| 5modern | 556 | Nguyen, Guillaume (1458) | Lost 0-2 | -191485 |
| 6modern | 490 | Bourdy, Wilfried (1363) | Won 2-0 | +161501 |
| 7modern | 439 | Fichtmuller, Lukas (1547) | Lost 1-2 | -171484 |
| 8modern | 420 | Stanga, Giacomo (1551) | Lost 0-2 | -171467 |
| average opponent: 1513record: 3-5 | new rating: 1467 | |||