Beckenbach, Joe
Current rating: 1445
Record: 1-4
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 540 | Deforest, John (1465) | Lost 0-2 | -191481 |
| 2sealed | 612 | Brakke, Kris (1482) | Lost 1-2 | -181463 |
| 3sealed | 725 | Bauer, Michael (1424) | Lost 1-2 | -181445 |
| 4sealed | 722 | Lobue, Christopher M (1447) | Lost 0-2 | -181427 |
| 5sealed | 579 | Matuszko, Robert (1427) | Won 2-1 | +181445 |
| average opponent: 1449record: 1-4 | new rating: 1445 | |||