Grottenberg, Samuel
Current rating: 1464
Record: 3-5
| Grand Prix Calgary 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 200 | Low, Gregory (1446) | Lost 0-0 | -191481 |
| 2standard | 168 | Suffern, Robby (1518) | Lost 0-2 | -171464 |
| 3standard | 249 | Turcotte, Maurice (1464) | Lost 0-2 | -181446 |
| 4standard | 286 | Dick, Dalton (1446) | Won 2-0 | +181464 |
| 5standard | 241 | Tanguay, James J (1428) | Won 2-0 | +171481 |
| 6standard | 64 | Brews, Robert (1448) | Lost 0-2 | -191462 |
| 7standard | 170 | Knitter, Josh (1496) | Lost 1-2 | -171445 |
| 8standard | 158 | Bremner-Thompson, Caisha (1481) | Won 2-0 | +191464 |
| average opponent: 1466record: 3-5 | new rating: 1464 | |||