Henderson, Martin
Current rating: 1472
Record: 17-22
| Grand Prix Vancouver 2018 (UMA limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 72 | Vezina, Phillip (1535) | Won 2-0 | +201467 |
| 4sealed | 8 | Landweber, Joseph (1698) | Won 2-0 | +221489 |
| 5sealed | 19 | Demery, Joshua (1599) | Lost 0-2 | -161473 |
| 6sealed | 50 | Beattie, Matthew (1560) | Won 2-1 | +201493 |
| 7sealed | 23 | Mok, Wilson (2039) | Lost 0-2 | -91484 |
| 8sealed | 64 | Jones, Callahan (1854) | Lost 1-2 | -121472 |
| top | average opponent: 1714record: 3-3 | new rating: 1472 | ||
| Grand Prix Portland 2018 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 11 | Pall-Pareek, Aditya (1467) | Lost 1-2 | -191464 |
| 2modern | 488 | Brinkman, Garrett (1602) | Lost 1-2 | -151449 |
| 3modern | 755 | Stewart, Victory (1357) | Won 2-1 | +161465 |
| 4modern | 569 | Lubman, Jacob (1476) | Lost 1-2 | -181447 |
| top | average opponent: 1476record: 1-3 | new rating: 1447 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1429 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 392 | Olvera, Bryan (1683) | Lost 0-2 | -141415 |
| 2standard | 436 | Nolan, Ryan 2 (1527) | Won 2-0 | +201435 |
| 3standard | 344 | Low, Arthur (1444) | Won 2-1 | +181453 |
| 4standard | 385 | Adderson, Russell (1505) | Lost 1-2 | -171436 |
| 5standard | 350 | Eidinger, Christopher (1501) | Won 2-1 | +191455 |
| 6standard | 411 | Ablack, Mukesh (1652) | Won 2-1 | +221477 |
| 7standard | 260 | Prost, Andrejs (1915) | Won 2-1 | +251502 |
| 8standard | 137 | Dye, Kian (1723) | Won 2-1 | +221524 |
| 9standard | 1129 | Lax, Ari (1966) | Lost 0-2 | -101514 |
| 10standard | 1096 | Smith, Isaac (1740) | Lost 1-2 | -141500 |
| 11standard | 1118 | Poole, Jared (1529) | Lost 1-2 | -171483 |
| top | average opponent: 1653record: 6-5 | new rating: 1483 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 513 | Ockerman, Hrum (1500) | Lost 1-2 | -171466 |
| 2standard | 458 | Lovely, Tad (1486) | Lost 0-2 | -181448 |
| 3standard | 798 | Nelson, Shelby (1465) | Lost 1-2 | -181430 |
| 4standard | 111 | Lewis, Dan S (1399) | Won 2-0 | +181448 |
| 5standard | 733 | Dodd, Matthew (1387) | Lost 0-2 | -191429 |
| top | average opponent: 1447record: 1-4 | new rating: 1429 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2448 | Foley, Cody (1500) | Won 2-0 | +181499 |
| 2modern | 2142 | Lincoln, Zach (1517) | Won 2-1 | +191518 |
| 3modern | 2281 | Go, Calvin (1535) | Won 2-1 | +181536 |
| 4modern | 2018 | Kanczugowski, Daniel (1554) | Lost 0-2 | -181518 |
| 5modern | 2276 | Shutov, Mike (1570) | Lost 1-2 | -171501 |
| 6modern | 2242 | Braden, Jesse (1518) | Won 2-1 | +191520 |
| 7modern | 2276 | Heiszler, Andy (1537) | Lost 1-2 | -181502 |
| 8modern | 2239 | Caldwell, Mike (1466) | Lost 1-2 | -191483 |
| top | average opponent: 1525record: 4-4 | new rating: 1483 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 661 | Lin, Jefferey (1419) | Lost 0-2 | -191481 |
| 2sealed | 699 | Fleck, Zach (1467) | Lost 1-2 | -191462 |
| 3sealed | 814 | Pan, Chen (1464) | Won 0-0 | +181480 |
| 4sealed | 730 | Hanse, Mike (1482) | Won 2-1 | +181498 |
| 5sealed | 434 | MacKenzie, Jonathan (1537) | Lost 0-2 | -171481 |
| top | average opponent: 1474record: 2-3 | new rating: 1481 | ||