Antonelli, Jonathan
Current rating: 1399
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 50 | Miller, Isaac (1500) | Won 2-0 | +191450 |
| 2modern | 52 | Berns, Peter (1500) | Lost 1-2 | -171433 |
| 3modern | 301 | Kelly, Patrick M (1499) | Lost 1-2 | -171416 |
| 4modern | 454 | Alexander, Jack (1484) | Lost 0-2 | -171399 |
| top | average opponent: 1496record: 1-3 | new rating: 1399 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 613 | Beere, Ken (1445) | Lost 0-2 | -191447 |
| 2sealed | 718 | Roselle, Hugh (1482) | Lost 0-2 | -171430 |
| 3sealed | 771 | Reed, Josh (1428) | Lost 1-2 | -181412 |
| 4sealed | 809 | Saunders, Conner (1392) | Won 2-0 | +171429 |
| 5sealed | 665 | Bruen, Matthew (1466) | Won 2-0 | +191448 |
| 6sealed | 582 | Lafferty, Tom (1482) | Lost 0-2 | -171431 |
| top | average opponent: 1449record: 2-4 | new rating: 1431 | ||
| Grand Prix Montreal 2011 (M12 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Woodside, Tim R (1548) | Lost 1-2 | -171483 |
| 2sealed | 194 | Abramson, Erin (1446) | Won 2-1 | +171500 |
| 3sealed | 143 | Pileggi, Riccardo (1574) | Lost 0-2 | -161484 |
| 4sealed | 226 | Brunelle, Moise (1484) | Lost 0-2 | -181466 |
| top | average opponent: 1513record: 1-3 | new rating: 1466 | ||