Andrews, Jonathan
Current rating: 1470
| Grand Prix London 2015 (ORI standard) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 345 | Lakeman, Tristan (1500) | Lost 0-2 | -181466 |
| 2standard | 437 | Krabill, Brendon (1518) | Lost 0-2 | -171449 |
| 3standard | 531 | Wilkes, Ted (1464) | Won 2-0 | +181467 |
| 4standard | 440 | Almeida, Keith (1480) | Lost 1-2 | -171450 |
| 5standard | 467 | Slaney, Nicholas (1464) | Won 2-1 | +181468 |
| 6standard | 363 | Mitchell, Terry (1432) | Won 2-1 | +171485 |
| 7standard | 256 | Corwood, James (1636) | Lost 0-2 | -151470 |
| top | average opponent: 1499record: 3-4 | new rating: 1470 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 329 | Zeberlein, Michael (1500) | Won 2-0 | +191483 |
| 2modern | 252 | Hathaway, Tyler (1464) | Won 2-1 | +171500 |
| 3modern | 129 | Nash, Brandon (1539) | Lost 0-2 | -171483 |
| 4modern | 427 | Lamb, Hn (1467) | Won 2-0 | +181501 |
| 5modern | 209 | Bez, Ryan (1561) | Lost 1-2 | -171484 |
| top | average opponent: 1506record: 3-2 | new rating: 1484 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 19 | Walker, Dennis (1494) | Lost 0-2 | -181482 |
| 2extended | 392 | Taylor, Jay (1482) | Won 2-1 | +181500 |
| 3extended | 293 | Ricigliano, Joseph (1502) | Lost 1-2 | -181482 |
| 4extended | 328 | Landers, Benjamin (1483) | Lost 0-2 | -181464 |
| top | average opponent: 1490record: 1-3 | new rating: 1464 | ||