Barbieri, Guglielmo
Current rating: 1405
Record: 7-14
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 30 | Bekatoros, Dionysios (1518) | Won 2-0 | +201430 |
| 3standard | 276 | Hocquemiller, Arnaud (1861) | Lost 1-2 | -111419 |
| 4standard | 275 | Erdreich, Julien (1222) | Won 2-0 | +151434 |
| 5standard | 209 | Dewulf, Emmanuel (1749) | Lost 0-2 | -131421 |
| 6standard | 306 | Miller, Albert (1516) | Lost 1-2 | -161405 |
| top | average opponent: 1573record: 2-3 | new rating: 1405 | ||
| Grand Prix Turin 2018 (M19 limited) | starting rating: 1435 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 67 | Rubio Gimeno, Bernat (1506) | Won 2-1 | +191454 |
| 3sealed | 77 | Zuckerman, Yuval (1484) | Lost 0-2 | -171437 |
| 4sealed | 183 | Perin, Lionel (1789) | Lost 1-2 | -121425 |
| 5sealed | 354 | Sgambati, Pietro (1577) | Lost 1-2 | -151410 |
| top | average opponent: 1589record: 1-3 | new rating: 1410 | ||
| Grand Prix Birmingham 2018 (leg) (legacy) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 320 | Kiewiet, Ruben (1524) | Won 2-0 | +201468 |
| 2legacy | 280 | Koch, Thomas (1553) | Lost 0-2 | -171451 |
| 3legacy | 470 | Hellmann, Leon (1567) | Won 2-1 | +211472 |
| 4legacy | 316 | De Keyzer, Frederik (1385) | Lost 0-2 | -201452 |
| 5legacy | 420 | Carnell, Alexander (1512) | Lost 0-2 | -171435 |
| top | average opponent: 1508record: 2-3 | new rating: 1435 | ||
| Grand Prix Bologna 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 340 | Lupo, Alessandro (1522) | Won 2-1 | +181518 |
| 2modern | 220 | Foong, Shawn (1518) | Lost 0-1 | -181500 |
| 3modern | 817 | Stuckl, Sebastian (1484) | Lost 1-2 | -181482 |
| 4modern | 804 | Abramov, Andrey (1491) | Won 2-0 | +181500 |
| 5modern | 780 | Rodriguez Diaz, Miguel Angel (1644) | Lost 1-2 | -151485 |
| 6modern | 911 | Zhang, Argent (1482) | Lost 1-2 | -181467 |
| 7modern | 874 | Calzolari, Miko (1448) | Lost 0-2 | -191448 |
| top | average opponent: 1513record: 2-5 | new rating: 1448 | ||