Prosperi, Jonathan
Current rating: 1366
Record: 1-9-1
| Grand Prix Montreal 2017 (AKH standard) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2149 | Gauthier, Eric (1381) | Won 2-0 | +171430 |
| 2standard | 2008 | Francis-Pranger, Timothy (1608) | Lost 0-2 | -151415 |
| 3standard | 2278 | Bocock, David (1514) | Lost 0-2 | -161399 |
| 4standard | 2324 | Jolin, David (1491) | Lost 1-2 | -161383 |
| 5standard | 2372 | Xiong, David (1470) | Lost 0-2 | -171366 |
| average opponent: 1493record: 1-4 | new rating: 1366 | |||
| Grand Prix New Jersey 2017 (std) (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 46 | Lampkin, Patrick (1653) | Lost 0-2 | -151485 |
| 2standard | 563 | Birish, Joseph (1500) | Draw 1-1 | 01485 |
| 3standard | 680 | Pettengill, Stephen (1482) | Lost 0-2 | -181467 |
| 4standard | 749 | Gawinski, Adam (1479) | Lost 0-2 | -181449 |
| 5standard | 743 | Sousa, Katie (1433) | Lost 0-2 | -181431 |
| 6standard | 701 | Tringali, Peter (1425) | Lost 0-2 | -181413 |
| average opponent: 1495record: 0-5-1 | new rating: 1413 | |||