Henderson, Seth
Current rating: 1570
Record: 18-16
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 301 | Gordon, Andrew [CAN] (1741) | Lost 0-2 | -151549 |
| 4standard | 399 | Dodds, Jared (1598) | Lost 0-2 | -171532 |
| 5standard | 450 | Jenkins, Chad (1510) | Won 2-1 | +181550 |
| 6standard | 381 | Barge, Carter (1588) | Won 2-0 | +181568 |
| 7standard | 264 | Trepanier, Ryan (1666) | Lost 1-2 | -161552 |
| 8standard | 265 | Taimla, Christopher (1626) | Won 2-0 | +201572 |
| 9standard | 206 | Brixey, Christopher (1536) | Won 2-1 | +171589 |
| 10standard | 212 | Aubin, Maxime (1549) | Lost 0-2 | -191570 |
| top | average opponent: 1602record: 4-4 | new rating: 1570 | ||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 464 | Beatty, Robert (1505) | Won 2-1 | +181525 |
| 2standard | 352 | Vaskevicius, Vic (1518) | Won 2-0 | +181543 |
| 3standard | 145 | Davoudi, Mani (1839) | Won 2-1 | +231566 |
| 4standard | 93 | Betesh, Ralph (1773) | Lost 0-2 | -141552 |
| 5standard | 269 | Shrestha, Bishwa (1457) | Lost 0-2 | -201532 |
| 6standard | 251 | Garcia, Eric (1549) | Won 2-0 | +181550 |
| 7standard | 197 | Ivany, Roger (1539) | Won 2-0 | +181568 |
| 8standard | 177 | McRae, Michael (1547) | Won 2-1 | +181586 |
| 9standard | 99 | Sagermann, Christian (1582) | Won 2-1 | +181604 |
| 10standard | 44 | Gabriel, Alex (1592) | Won 2-1 | +171621 |
| 11standard | 48 | Hill, Tyler (1888) | Lost 0-2 | -131608 |
| 12standard | 65 | Perez Jr., Raymond (1761) | Lost 0-2 | -151593 |
| 13standard | 77 | Shrout, Andrew (1880) | Lost 0-2 | -131580 |
| 14standard | 79 | DuPont, Jeffrey (1691) | Lost 1-2 | -161564 |
| top | average opponent: 1651record: 8-6 | new rating: 1564 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 290 | Shaw, Alex (1519) | Lost 0-2 | -171486 |
| 2sealed | 508 | Martin, Neal (1486) | Won 2-0 | +181504 |
| 3sealed | 320 | Howden, Jason (1639) | Won 2-1 | +201524 |
| 4sealed | 350 | Lapierre, Matt (1477) | Won 2-0 | +171541 |
| 5sealed | 151 | Chirnside, Adam (1565) | Lost 1-2 | -171524 |
| 6sealed | 201 | Johnstone, Ian (1594) | Lost 0-2 | -171507 |
| top | average opponent: 1547record: 3-3 | new rating: 1507 | ||
| Grand Prix Toronto 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 506 | Brown, Marshall R (1517) | Lost 1-2 | -181482 |
| 2sealed | 468 | Hewitt, Donald R (1394) | Won 2-0 | +171499 |
| 3sealed | 491 | Liang, Na (1465) | Won 2-0 | +171516 |
| 4sealed | 320 | Borshay, Paul (1516) | Won 2-0 | +181534 |
| 5sealed | 189 | Gottlieb, Bryan (1869) | Lost 0-2 | -121522 |
| 6sealed | 401 | Musselman, Reuben (1483) | Lost 0-2 | -191503 |
| top | average opponent: 1541record: 3-3 | new rating: 1503 | ||