Marshall, Andrew
Current rating: 1548
Record: 10-7
| Grand Prix London 2016 (KLD limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 486 | Mayhew, Joseph (1499) | Lost 0-2 | -191518 |
| 2sealed | 919 | Allen, Christopher5948 (1486) | Won 2-0 | +181536 |
| 3sealed | 556 | Oldenburg, Julia (1411) | Won 2-1 | +151551 |
| 4sealed | 317 | Murphy, Anthony (1480) | Won 2-1 | +171568 |
| 5sealed | 259 | Hansen, Ulrik Thinggaard (1510) | Lost 0-2 | -191549 |
| 6sealed | 613 | Fontaine, Marc (1631) | Won 2-1 | +191568 |
| 7sealed | 329 | McIntyre, Graeme (1489) | Lost 0-2 | -191549 |
| 8sealed | 508 | Djogouros, Michalis (1523) | Lost 0-2 | -191530 |
| 9sealed | 532 | Roig, Ferran (1498) | Won 2-1 | +181548 |
| average opponent: 1503record: 5-4 | new rating: 1548 | |||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 522 | Bishop, Gareth (1500) | Won 2-1 | +181518 |
| 2sealed | 51 | Huizinga, Sander (1539) | Won 2-0 | +181536 |
| 3sealed | 214 | Bieniek, Lukasz (1550) | Lost 1-2 | -171519 |
| 4sealed | 395 | Ferry, Erik (1484) | Won 2-0 | +171536 |
| 5sealed | 304 | Almemo, Fredrik (1480) | Lost 0-2 | -191517 |
| 6sealed | 407 | Tilley, John (1516) | Won 2-1 | +181535 |
| 7sealed | 412 | Lopez, Oliver (1537) | Lost 1-2 | -181517 |
| 8sealed | 380 | Lamesch, Matthias (1615) | Won 2-0 | +201537 |
| average opponent: 1528record: 5-3 | new rating: 1537 | |||