Armstrong, Jeff
Current rating: 1454
Record: 13-16
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 452 | Boose, Bradley (1534) | Won 2-0 | +181512 |
| 2standard | 232 | Albert, Levi (1522) | Lost 0-2 | -171495 |
| 3standard | 521 | Pearson, Dennis (1409) | Lost 1-2 | -201475 |
| 4standard | 553 | Maltais, Marc-Andre (1337) | Lost 1-2 | -201455 |
| 5standard | 662 | Mamat, Aadam (1461) | Won 2-0 | +181473 |
| 6standard | 588 | Smith, Steve (1448) | Lost 0-2 | -191454 |
| 7standard | 539 | Ramsden, Justin (1463) | Lost 1-2 | -181436 |
| 8standard | 452 | Auger-Mailhot, Xavier (1429) | Won 2-0 | +181454 |
| top | average opponent: 1450record: 3-5 | new rating: 1454 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 42 | Jackson, Brian (1500) | Won 2-0 | +191451 |
| 2standard | 137 | Schapurga, Mike (1388) | Lost 0-2 | -191432 |
| 3standard | 570 | Gascon, Louis (1497) | Won 2-0 | +191451 |
| 4standard | 368 | Stoyles, Chris (1498) | Lost 0-2 | -171434 |
| 5standard | 527 | Giglia, Noah (1500) | Lost 1-2 | -171417 |
| 6standard | 537 | Tang, Richard (1498) | Won 2-0 | +201437 |
| 7standard | 387 | Casper, Thomas (1473) | Won 2-1 | +181455 |
| 8standard | 267 | Jung, Steven (1490) | Won 2-0 | +191474 |
| 9standard | 209 | Pangilinan, Jay (1565) | Won 2-1 | +201494 |
| top | average opponent: 1490record: 6-3 | new rating: 1494 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 368 | Dufour, Jimmy (1500) | Lost 0-2 | -171429 |
| 2sealed | 483 | Prieur, Philippe (1482) | Lost 1-2 | -171412 |
| 3sealed | 637 | Melanson, Bredan (1464) | Won 2-0 | +181430 |
| 4sealed | 581 | Racine, Manuel (1483) | Won 2-0 | +191449 |
| 5sealed | 523 | Wilson, Chris 788 (1481) | Lost 0-2 | -171432 |
| top | average opponent: 1482record: 2-3 | new rating: 1432 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 82 | Day, Mark (1463) | Lost 1-2 | -181463 |
| 2modern | 302 | Leskoviku, Albert (1485) | Lost 0-2 | -171446 |
| top | average opponent: 1474record: 0-2 | new rating: 1446 | ||
| Grand Prix Montreal 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 16 | Theriault, Francois (1500) | Lost 1-2 | -181482 |
| 2block | 240 | Pelletier, Antony (1483) | Lost 0-2 | -181464 |
| 3block | 285 | Caputo, Jonathan B (1468) | Won 2-0 | +181482 |
| 4block | 272 | Lowdon, Sean (1449) | Won 2-0 | +171499 |
| 5block | 194 | Malo, Benoit (1498) | Lost 1-2 | -181481 |
| top | average opponent: 1480record: 2-3 | new rating: 1481 | ||