Best, Jonathan
Current rating: 1415
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1423 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 625 | Tsang, Henry (1467) | Won 2-0 | +191442 |
| 2sealed | 256 | Drake, Alyx (1518) | Lost 0-2 | -161426 |
| 3sealed | 668 | Zeal, Dominic (1544) | Lost 1-2 | -161410 |
| 4sealed | 654 | Sherry, Kieran (1486) | Won 2-1 | +191429 |
| 5sealed | 423 | Hugill, Alexander (1469) | Lost 0-2 | -171412 |
| 6sealed | 546 | Prince, John (1482) | Won 2-0 | +191431 |
| 7sealed | 418 | Capizzi, Guillaume (1413) | Won 2-0 | +181449 |
| 8sealed | 304 | Gallais, Alexis (1630) | Lost 0-2 | -151434 |
| 9sealed | 247 | Tunnard, Andrew (1367) | Lost 1-2 | -191415 |
| top | average opponent: 1486record: 4-5 | new rating: 1415 | ||
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 99 | O'Reilly, Paul (1384) | Lost 0-2 | -201463 |
| 2block | 514 | Chandler, Vincent (1482) | Lost 1-2 | -171446 |
| 3block | 572 | Moeken, Ed (1207) | Lost 1-2 | -231423 |
| top | average opponent: 1358record: 0-3 | new rating: 1423 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 569 | Saudek, Lucien (1552) | Lost 0-2 | -171483 |
| 2sealed | 537 | Pinder, Mark (1464) | Won 2-1 | +181501 |
| 3sealed | 629 | Lihoreau, Ibai (1529) | Lost 1-2 | -181483 |
| top | average opponent: 1515record: 1-2 | new rating: 1483 | ||