Cowen, Zacharias J
Current rating: 1476
Record: 4-5
| Grand Prix London 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 628 | Anderson-Riley, Paul (1479) | Lost 1-2 | -181482 |
| 2standard | 933 | Marsh, Thomas (1427) | Lost 1-2 | -191463 |
| 3standard | 1024 | Sharpes, Kevin (1522) | Won 2-1 | +191482 |
| 4standard | 966 | Basham, William (1480) | Lost 1-2 | -181464 |
| 5standard | 998 | Richards, Ethan (1464) | Won 2-1 | +181482 |
| 6standard | 918 | Fischer, Juliane (1265) | Won 2-0 | +141496 |
| 7standard | 632 | Sezgin, Ayhan D (1495) | Won 2-0 | +181514 |
| 8standard | 598 | Brown, Chris K (1525) | Lost 0-2 | -181496 |
| 9standard | 424 | Harmer, Matt (1386) | Lost 0-2 | -201476 |
| average opponent: 1449record: 4-5 | new rating: 1476 | |||