Humphreys, John
Current rating: 1479
Record: 2-3-1
| Grand Prix London 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 602 | Ambery, Christopher (1446) | Won 2-1 | +171517 |
| 2standard | 607 | Benca, Lucian-Cristian (1506) | Lost 1-2 | -181499 |
| 3standard | 1002 | Cagsar, Mirkan (1500) | Won 2-0 | +181517 |
| 4standard | 871 | Young, Brian (1489) | Lost 0-2 | -191498 |
| 5standard | 940 | Sawyer, Tom (1493) | Draw 1-1 | 01498 |
| 6standard | 887 | Gates, Dominic (1431) | Lost 0-2 | -191479 |
| average opponent: 1478record: 2-3-1 | new rating: 1479 | |||