Acosta, Jonah
Current rating: 1435
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 882 | Johnson, Christian M (1500) | Lost 0-2 | -171432 |
| 2sealed | 1137 | Mccoy, Aaron (1482) | Won 2-0 | +181450 |
| 3sealed | 956 | Jones, Jared (1573) | Lost 0-2 | -151435 |
| top | average opponent: 1518record: 1-2 | new rating: 1435 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 420 | Martin, Bob (1455) | Lost 0-2 | -181483 |
| 3standard | 427 | Apgar, Joe (1500) | Lost 1-2 | -181465 |
| 4standard | 552 | Patnode, Nicholas (1554) | Lost 1-2 | -161449 |
| top | average opponent: 1503record: 0-3 | new rating: 1449 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 546 | Flagg, Matt A (1500) | Won 1-0 | +181518 |
| 2legacy | 481 | Shentu, Michael (1483) | Won 2-0 | +171535 |
| 3legacy | 411 | Schmidt, Joseph (1598) | Lost 0-2 | -171518 |
| 4legacy | 561 | Abendroth, Allen (1608) | Won 2-0 | +201538 |
| 5legacy | 453 | Johnston, Adam (1507) | Lost 0-2 | -181520 |
| 6legacy | 573 | Bergerac, Michael (1516) | Lost 1-2 | -191501 |
| top | average opponent: 1535record: 3-3 | new rating: 1501 | ||