Jefferies, Steven
Current rating: 1391
Record: 5-12
| Grand Prix Toronto 2018 (modern) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 445 | Hendriks, Scott (1500) | Lost 1-2 | -161393 |
| 2modern | 477 | Tomajko, Gabriel (1482) | Won 2-1 | +201413 |
| 3modern | 608 | Beland, Louis-Felix (1498) | Won 2-0 | +191432 |
| 4modern | 449 | Fiddler, Wayne (1608) | Won 2-1 | +211453 |
| 5modern | 105 | Eilersen, Connors (1490) | Lost 0-2 | -171436 |
| 6modern | 339 | Richard, Francois (1600) | Lost 1-2 | -151421 |
| 7modern | 373 | Sasaki, Yusuke (1726) | Lost 0-2 | -131408 |
| 8modern | 388 | Schelble, Stephanie (1446) | Lost 0-2 | -171391 |
| average opponent: 1544record: 3-5 | new rating: 1391 | |||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Rambarran, Ricardo (1556) | Lost 1-2 | -171483 |
| 2standard | 590 | Esposito, Evan (1482) | Lost 1-2 | -181465 |
| 3standard | 713 | Oostrom, Jonathan (1466) | Lost 0-2 | -181447 |
| 4standard | 1076 | Hanley, Patrick (1446) | Lost 0-2 | -181429 |
| 5standard | 687 | Cusack, James (1427) | Won 2-0 | +181447 |
| 6standard | 605 | Tan, Michelle (1446) | Won 2-0 | +181465 |
| 7standard | 1056 | Wagenhoffer, Malcolm (1417) | Lost 0-2 | -191446 |
| 8standard | 459 | Mamat, Aadam (1443) | Lost 1-2 | -181428 |
| 9standard | 378 | Couillard Tremblay, Francis (1389) | Lost 0-2 | -191409 |
| average opponent: 1452record: 2-7 | new rating: 1409 | |||