Bonner, Tim
Current rating: 1480
Record: 2-3
| Grand Prix Calgary 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 346 | Portes, Zaida (1500) | Won 2-0 | +181518 |
| 2modern | 34 | Channell, Eric (1518) | Lost 1-2 | -181500 |
| 3modern | 266 | Tran, David D (1439) | Lost 0-2 | -191481 |
| 4modern | 369 | Ramirez, Adonis (1443) | Won 2-0 | +171498 |
| 5modern | 241 | Klassen, Bradley (1488) | Lost 1-2 | -181480 |
| average opponent: 1478record: 2-3 | new rating: 1480 | |||