Langley, John
Current rating: 1419
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 45 | Galati, Patrick (1500) | Won 2-1 | +191450 |
| 2modern | 99 | Walton, Kasey (1628) | Draw 1-1 | +31453 |
| 3modern | 435 | Hernandez, Jake (1518) | Lost 1-2 | -171436 |
| 4modern | 640 | McGuire, Wayne (1501) | Lost 0-2 | -171419 |
| top | average opponent: 1537record: 1-2-1 | new rating: 1419 | ||
| Grand Prix Memphis 2015 (FRF standard) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 294 | Townsend, Jacob (1446) | Lost 0-2 | -171427 |
| 2standard | 396 | Lawrence, Jordan (1481) | Won 2-0 | +191446 |
| 3standard | 270 | Rankin, Michael (1503) | Lost 1-2 | -171429 |
| 4standard | 457 | Dobson, Richard (1485) | Won 2-1 | +191448 |
| 5standard | 307 | Bishop, Dason (1500) | Lost 0-2 | -171431 |
| top | average opponent: 1483record: 2-3 | new rating: 1431 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 276 | Veloz, Anthony (1452) | Lost 0-2 | -191481 |
| 2standard | 382 | Laviolette, Michael A (1517) | Lost 1-2 | -171464 |
| 3standard | 500 | Conner, Casey W (1393) | Lost 0-2 | -201444 |
| top | average opponent: 1454record: 0-3 | new rating: 1444 | ||