Brunsdon, David
Current rating: 1577
Record: 23-20-1
| Grand Prix Calgary 2019 (modern) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 24 | Hasein, Alex (1500) | Lost 0-2 | -201564 |
| 2modern | 402 | Cranley, Ryan (1483) | Won 2-0 | +171581 |
| 3modern | 246 | Klassen, Bradley (1486) | Lost 1-2 | -201561 |
| 4modern | 377 | Hackett, Tadhg (1482) | Won 2-1 | +171578 |
| 5modern | 215 | Hanson, Leah (1513) | Draw 1-1 | -11577 |
| top | average opponent: 1493record: 2-2-1 | new rating: 1577 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1618 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 2086 | Ainey, Brandon (1502) | Lost 0-2 | -201598 |
| 4modern | 2247 | Fang, Percy (2030) | Lost 0-2 | -111587 |
| 5modern | 2453 | Corrie, Christopher (1429) | Won 2-1 | +151602 |
| 6modern | 2428 | Paul, Luke (1573) | Lost 1-2 | -181584 |
| top | average opponent: 1634record: 1-3 | new rating: 1584 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 42 | Lingelbach, Cody (1995) | Lost 1-2 | -111549 |
| 4standard | 403 | Heard, Jaron (1651) | Lost 0-2 | -161533 |
| 5standard | 478 | Bagnall, Justin (1467) | Won 2-1 | +171550 |
| 6standard | 425 | Guluka, Nehemiah (1499) | Won 2-1 | +171567 |
| 7standard | 273 | Drummond, Troy (1525) | Won 2-1 | +171584 |
| 8standard | 211 | Brown, Edward (1447) | Won 2-0 | +161600 |
| 9standard | 81 | Howland, Spencer (1675) | Won 0-0 | +191619 |
| 10standard | 84 | Falk, Coleman (1677) | Lost 0-2 | -171602 |
| 11standard | 87 | Sanchez, Robert (1524) | Lost 1-2 | -191583 |
| 12standard | 143 | Donn, Christopher (1538) | Won 2-0 | +171600 |
| 13standard | 102 | Norr, Phillip (1569) | Won 2-0 | +171617 |
| 14standard | 76 | Brock, Michael (1510) | Lost 1-2 | -201597 |
| 15standard | 88 | Yao, Chris (1750) | Won 2-1 | +211618 |
| top | average opponent: 1602record: 8-5 | new rating: 1618 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 2 | Riecken, Steven (1795) | Lost 0-0 | -141555 |
| 4sealed | 331 | Rojo Leon, Rodrigo (1535) | Won 2-0 | +171572 |
| 5sealed | 201 | Dezani, Jeremy (1879) | Lost 0-2 | -121560 |
| 6sealed | 409 | Hashimoto, Shu (1586) | Lost 1-2 | -181542 |
| 7sealed | 391 | Bent, Steven (1499) | Won 2-0 | +181560 |
| 8sealed | 333 | Henriksen, Matt (1641) | Won 2-0 | +191579 |
| 9sealed | 198 | Spicer, Kory (1501) | Lost 0-2 | -191560 |
| top | average opponent: 1634record: 3-4 | new rating: 1560 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 321 | Chandler, Kyle (1621) | Won 2-0 | +201520 |
| 2modern | 33 | Ungerecht, Timothy (1485) | Won 2-0 | +181538 |
| 3modern | 11 | Yu, Ben (1880) | Won 2-1 | +241562 |
| 4modern | 59 | Hogman, Nathan (1561) | Lost 0-2 | -181544 |
| 5modern | 77 | Stone, Tim (1565) | Won 2-1 | +181562 |
| 6modern | 44 | Jost, James (1558) | Won 2-0 | +181580 |
| 7modern | 44 | Wu, Ivan (1528) | Won 2-0 | +171597 |
| 8modern | 39 | Hertz, Michael (1700) | Won 2-0 | +201617 |
| 9modern | 18 | Ferguson, Scott (1638) | Lost 1-2 | -181599 |
| 10modern | 37 | Boa, Andrew (1561) | Won 1-0 | +181617 |
| 11modern | 35 | Krotkov, Andrei (1627) | Lost 1-2 | -181599 |
| 12modern | 44 | Christensen, Drew (1651) | Won 2-1 | +191618 |
| 13modern | 25 | Pardee, Samuel (1963) | Lost 0-2 | -121606 |
| 14modern | 33 | Frigon, Luke (1601) | Lost 1-2 | -181588 |
| 15modern | 48 | Smythe, Andrew (1536) | Lost 0-2 | -191569 |
| top | average opponent: 1632record: 9-6 | new rating: 1569 | ||