Gamm, Jacob E
Current rating: 1480
Record: 2-3
| Grand Prix London 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 511 | Kavanagh, Austin (1462) | Won 2-1 | +171517 |
| 2standard | 626 | Jackson, Ross [ENG] (1467) | Lost 0-2 | -191498 |
| 3standard | 997 | Fishwick, Shaun (1499) | Lost 1-2 | -181480 |
| 4standard | 1016 | Belet, Alexandru (1451) | Lost 1-2 | -181462 |
| 5standard | 1007 | Van Der Laar, Lesley (1464) | Won 2-1 | +181480 |
| average opponent: 1469record: 2-3 | new rating: 1480 | |||