Holness, Trevor
Current rating: 1385
Record: 14-22
| Grand Prix Toronto 2018 (modern) | starting rating: 1417 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 375 | Zhu, Rui (1314) | Won 2-1 | +171434 |
| 2modern | 111 | Tsiligiannis, Evangelos (1452) | Lost 1-2 | -181416 |
| 3modern | 452 | Dupont-Issalys, Colin (1517) | Lost 0-2 | -161400 |
| 4modern | 735 | Aitchison, Evan (1537) | Lost 1-2 | -161384 |
| 5modern | 721 | Brown, Jordan (1173) | Lost 1-2 | -221362 |
| 6modern | 651 | Regimbald, Jean-Francois (1438) | Lost 1-2 | -161346 |
| 7modern | 555 | Burnett, Jon (1430) | Won 2-1 | +191365 |
| 8modern | 459 | Ruminski, Eddie (1453) | Won 2-1 | +201385 |
| top | average opponent: 1414record: 3-5 | new rating: 1385 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 84 | Kinney, Gregory (1500) | Won 2-0 | +201428 |
| 2sealed | 57 | Shomer, Austin (1518) | Lost 1-2 | -161412 |
| 3sealed | 227 | McCallum, Daniel (1466) | Lost 1-2 | -171395 |
| 4sealed | 228 | Shim, Matthew (1482) | Lost 0-2 | -171378 |
| 5sealed | 221 | Hamilton, Jeramie (1466) | Won 2-0 | +201398 |
| 6sealed | 171 | Lohouse, Justin (1482) | Won 2-1 | +191417 |
| top | average opponent: 1486record: 3-3 | new rating: 1417 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1416 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 20 | Falsetti, Michael (1500) | Lost 0-2 | -171399 |
| 2standard | 475 | Grahn, Justin (1482) | Lost 1-2 | -161383 |
| 3standard | 754 | Gagne, Sebastien (1490) | Lost 1-2 | -161367 |
| 4standard | 731 | Scott, Andrew [CAN] (1446) | Won 2-0 | +191386 |
| 5standard | 653 | Strantzl, Paul (1465) | Won 2-0 | +191405 |
| 6standard | 480 | Hird, Matthew (1463) | Won 2-1 | +201425 |
| 7standard | 358 | Valenti, Philip (1458) | Lost 1-2 | -181407 |
| 8standard | 330 | McCormick, Greg (1433) | Lost 1-2 | -171390 |
| 9standard | 268 | Patriquin, Bret (1432) | Won 2-0 | +181408 |
| top | average opponent: 1463record: 4-5 | new rating: 1408 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Zelenka, Adam (1500) | Lost 0-2 | -171433 |
| 2sealed | 61 | Mathers, Kyle (1449) | Lost 0-2 | -171416 |
| top | average opponent: 1475record: 0-2 | new rating: 1416 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 184 | Leger, Francis (1500) | Lost 0-2 | -171446 |
| 2modern | 470 | Kaczmarczyk, David (1482) | Won 0-0 | +181464 |
| 3modern | 418 | Hermann, Eric (1483) | Lost 0-2 | -171447 |
| 4modern | 608 | Hurst, Simon (1484) | Won 2-0 | +181465 |
| 5modern | 373 | Todd, Joshua (1464) | Lost 0-2 | -181447 |
| 6modern | 480 | Prephan, David (1563) | Lost 0-2 | -161431 |
| 7modern | 462 | Nakamura, Robert (1465) | Won 0-0 | +191450 |
| 8modern | 329 | Klein, david w (1502) | Lost 1-2 | -171433 |
| 9modern | 306 | Scibetta, Vinny (1399) | Won 2-0 | +171450 |
| top | average opponent: 1482record: 4-5 | new rating: 1450 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 352 | Verveniotis, Stefan (1519) | Lost 0-2 | -181482 |
| 2sealed | 620 | Phillips, Derek (1412) | Lost 1-2 | -191463 |
| top | average opponent: 1466record: 0-2 | new rating: 1463 | ||