Petrarca, Matt
Current rating: 1450
Record: 7-10
| Grand Prix Hartford 2018 (modern) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 90 | Wagner, Craig (1500) | Lost 0-2 | -181467 |
| 2modern | 435 | Mocarsky, Dana (1484) | Lost 1-2 | -181449 |
| 3modern | 817 | Schranz, Darren (1469) | Won 2-1 | +181467 |
| 4modern | 779 | Jung, Theodore (1468) | Lost 0-2 | -181449 |
| 5modern | 756 | Liu, Alex [USA] (1329) | Lost 1-2 | -201429 |
| 6modern | 678 | Battis, John (1450) | Won 2-1 | +191448 |
| 7modern | 532 | Waldron, Jason (1463) | Won 2-0 | +181466 |
| 8modern | 414 | Williams, Matthew (1589) | Lost 1-2 | -161450 |
| average opponent: 1469record: 3-5 | new rating: 1450 | |||
| Grand Prix Providence 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 98 | Bruno, Alexander (1500) | Lost 1-2 | -181482 |
| 2standard | 333 | Olson, Kenneth (1446) | Won 2-0 | +171499 |
| 3standard | 294 | Atkinson, Ryan (1484) | Lost 1-2 | -181481 |
| 4standard | 467 | Nguyen, Michael (1483) | Lost 0-2 | -181463 |
| 5standard | 509 | Bergeron, Philip (1469) | Won 2-1 | +181481 |
| 6standard | 446 | Carle, Ian (1674) | Lost 0-2 | -141467 |
| 7standard | 414 | Martin, Alex (1465) | Lost 1-2 | -181449 |
| 8standard | 369 | Tanzi, Kristen (1445) | Won 2-1 | +181467 |
| 9standard | 306 | Montes, Henry (1463) | Won 2-1 | +181485 |
| average opponent: 1492record: 4-5 | new rating: 1485 | |||