Tonkin, Debbie
Current rating: 1474
Record: 17-19
| Grand Prix Birmingham 2017 (modern) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 126 | Garcia-Rojo Pulgar, Joaquin (1577) | Lost 1-2 | -171530 |
| 4modern | 395 | Bouquet, Thierry (1481) | Lost 0-2 | -191511 |
| 5modern | 646 | Dunlop, James (1464) | Lost 1-2 | -191492 |
| 6modern | 612 | McNulty, John (1488) | Lost 0-2 | -181474 |
| top | average opponent: 1502record: 0-4 | new rating: 1474 | ||
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 396 | Lau, Garry (1729) | Lost 1-2 | -151550 |
| 4modern | 408 | Ruegg, Pascal (1588) | Lost 1-2 | -171533 |
| 5modern | 682 | Bernabe, Julio (1661) | Lost 0-2 | -161517 |
| 6modern | 650 | Karlsson, Emil (1433) | Won 2-1 | +161533 |
| 7modern | 423 | Orsini, Martino (1454) | Won 2-0 | +171550 |
| 8modern | 472 | Van Massenhove, Timothy (1379) | Won 2-1 | +151565 |
| 9modern | 372 | Gonzalez Rodriguez, Miguel Angel (1570) | Lost 0-2 | -181547 |
| top | average opponent: 1545record: 3-4 | new rating: 1547 | ||
| Grand Prix Utrecht 2017 (AER standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 78 | Silvestre, Vicent (1677) | Lost 0-2 | -141487 |
| 3standard | 331 | Joustra, Paulo (1501) | Lost 0-2 | -181469 |
| 4standard | 523 | Van Der Steen, Niels (1482) | Won 2-0 | +181487 |
| 5standard | 312 | Steegh, Michiel (1501) | Won 2-0 | +181505 |
| 6standard | 284 | Miller, Jan (1641) | Won 2-0 | +211526 |
| 7standard | 203 | Winner, Fabian (1577) | Won 2-1 | +191545 |
| 8standard | 102 | Ahn, Ei Yong (1563) | Won 2-1 | +181563 |
| 9standard | 88 | Pearson, Zak (1518) | Lost 1-2 | -191544 |
| 10standard | 111 | van den Bogaard, Ricardo (1699) | Won 2-0 | +211565 |
| top | average opponent: 1573record: 6-3 | new rating: 1565 | ||
| Grand Prix Madrid 2016 (KLD standard) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 76 | Martin Pamo, Luis Raul (1428) | Lost 0-2 | -191476 |
| 2standard | 462 | Martin Quintero, Jonathan (1482) | Won 2-0 | +181494 |
| 3standard | 548 | Ribeiro, Andre (1519) | Lost 0-2 | -181476 |
| 4standard | 661 | Tejeiro Sanchez, Francisco Jose (1098) | Won 2-0 | +121488 |
| 5standard | 438 | Gadeyne, Kenneth (1426) | Won 2-0 | +171505 |
| 6standard | 323 | Hernando, Miguel Angel (1454) | Won 2-0 | +171522 |
| 7standard | 298 | Alonso, Fernando (1421) | Lost 1-2 | -201502 |
| 8standard | 269 | Ruiz Martinez, Enrique (1489) | Lost 1-2 | -181484 |
| 9standard | 404 | Cristina, Niccolo (1473) | Won 2-0 | +171501 |
| top | average opponent: 1421record: 5-4 | new rating: 1501 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 85 | Kocsis, Gabor (1890) | Lost 0-2 | -111489 |
| 4standard | 282 | Hadamek, Ondrej (1435) | Lost 1-2 | -191470 |
| 5standard | 316 | Rapajic, Marko (1471) | Won 2-0 | +181488 |
| 6standard | 347 | Rebizant, Pawel (1518) | Won 2-0 | +181506 |
| 7standard | 232 | Doropoulos, Marios-Isidoros (1735) | Lost 1-2 | -141492 |
| 8standard | 214 | Ughetti, Nicola (1493) | Lost 0-1 | -181474 |
| 9standard | 318 | Nienhaus, Jens (1611) | Won 2-1 | +211495 |
| top | average opponent: 1593record: 3-4 | new rating: 1495 | ||