Gratton, David
Current rating: 1519
Record: 6-5-1
| Grand Prix Brisbane 2019 (ELD standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 115 | Franchini, Nicholas (1488) | Won 2-1 | +181520 |
| 2standard | 33 | Odsey, Victor (1584) | Draw 1-1 | +11521 |
| 3standard | 87 | Rubasingham, Suban (1438) | Won 2-0 | +161537 |
| 4standard | 40 | Camm, Damien (1552) | Won 2-0 | +191556 |
| 5standard | 23 | Tigani, Mike (1556) | Lost 0-2 | -181538 |
| 6standard | 51 | McGillivray, Connor (1522) | Lost 0-2 | -191519 |
| average opponent: 1523record: 3-2-1 | new rating: 1519 | |||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 148 | Tharmaratnam, Samuel (1500) | Lost 0-2 | -181482 |
| 2block | 224 | Edmunds, Chris (1482) | Won 2-0 | +181500 |
| 3block | 228 | Ross-Latour, Jeremie (1501) | Lost 1-2 | -181482 |
| 4block | 304 | Bernard, Matthew (1482) | Won 2-1 | +181500 |
| 5block | 227 | Bourgault, Jesse O (1483) | Won 2-1 | +181518 |
| 6block | 148 | Davis, Jim (1640) | Lost 0-2 | -161502 |
| average opponent: 1515record: 3-3 | new rating: 1502 | |||