Chow, Jeff
Current rating: 1554
Record: 20-17-3
| Grand Prix Vancouver 2017 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2092 | Thiessen, Isaac (1500) | Draw 1-1 | 01519 |
| 2modern | 2353 | Yee, Victor (1572) | Won 2-1 | +191538 |
| 3modern | 2318 | Le, Syrus (1519) | Lost 0-2 | -181520 |
| 4modern | 2486 | O'Dell, Jonathon (1505) | Won 2-0 | +171537 |
| 5modern | 2320 | Schorsch, Adam (1517) | Won 2-1 | +181555 |
| 6modern | 2206 | Webber, Robin (1534) | Won 2-1 | +181573 |
| 7modern | 2120 | Harris, Taylor (1543) | Won 2-0 | +171590 |
| 8modern | 2071 | Kemp, Jonathan (1583) | Lost 0-2 | -181572 |
| 9modern | 2145 | Bambush, Travis (1577) | Lost 0-2 | -181554 |
| top | average opponent: 1539record: 5-3-1 | new rating: 1554 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 39 | Bollin, Sean (1500) | Lost 1-2 | -191543 |
| 2modern | 275 | Cohen, Ben (1408) | Lost 1-2 | -211522 |
| 3modern | 534 | Lee, Philip (1400) | Won 2-1 | +161538 |
| 4modern | 443 | Shaw, Steven (1484) | Lost 0-2 | -191519 |
| top | average opponent: 1448record: 1-3 | new rating: 1519 | ||
| Grand Prix Vancouver 2012 (AVR limited) | starting rating: 1527 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 196 | McEwen, Peter (1500) | Won 2-1 | +181545 |
| 2sealed | 195 | Whitwell, Colin (1518) | Won 2-0 | +171562 |
| 3sealed | 12 | Jakku, Stefan (1536) | Lost 1-2 | -181544 |
| 4sealed | 242 | Gushattey, Jared (1534) | Won 2-1 | +181562 |
| 5sealed | 112 | Currie, Joey (1535) | Won 2-1 | +171579 |
| 6sealed | 102 | Sanson, Albert (1600) | Won 2-0 | +191598 |
| 7sealed | 23 | Baker, David (1693) | Lost 1-2 | -171581 |
| 8sealed | 110 | Lin, Jianfeng (1509) | Lost 0-2 | -191562 |
| top | average opponent: 1553record: 5-3 | new rating: 1562 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1492 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 320 | Allen, Justin C (1500) | Won 2-0 | +181510 |
| 2sealed | 244 | Farrington, Alex (1480) | Lost 0-2 | -191491 |
| 3sealed | 307 | hastain, greg (1570) | Lost 1-2 | -161475 |
| 4sealed | 444 | Thorlakson, Neil (1417) | Won 2-0 | +171492 |
| 5sealed | 427 | Nickerson, Eric (1500) | Won 2-0 | +181510 |
| 6sealed | 238 | Maguire, Jared (1517) | Won 2-0 | +181528 |
| 7sealed | 223 | Mancill, Sam R (1536) | Won 2-0 | +181546 |
| 8sealed | 12 | Donovan, Kyle S (1500) | Lost 1-2 | -191527 |
| top | average opponent: 1502record: 5-3 | new rating: 1527 | ||
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 289 | Phillips, Jarrett (1499) | Won 2-0 | +191484 |
| 2standard | 258 | Bleackley, Aaron (1537) | Won 2-1 | +191503 |
| 3standard | 154 | Boyd, Adam (1595) | Won 2-1 | +201523 |
| 4standard | 126 | Brown, Erin (1689) | Lost 1-2 | -151508 |
| 5standard | 191 | Gray, Tommy (1536) | Won 2-0 | +181526 |
| 6standard | 69 | McCall, Max (1638) | Lost 1-2 | -161510 |
| 7standard | 163 | Hayes, Sean (1490) | Lost 1-2 | -181492 |
| top | average opponent: 1569record: 4-3 | new rating: 1492 | ||
| Grand Prix Vancouver 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 75 | Davis, Joseph D (1500) | Draw 1-1 | 01500 |
| 2extended | 99 | Tingey, Vince (1499) | Draw 1-1 | 01500 |
| 3extended | 139 | Sorensen, Robin G (1581) | Lost 0-2 | -171483 |
| 4extended | 179 | Lee, James A (1481) | Lost 0-2 | -181465 |
| top | average opponent: 1515record: 0-2-2 | new rating: 1465 | ||