Henderson, Graham
Current rating: 1578
Record: 26-23-4
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1577 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 192 | Yates, Danny (1500) | Won 2-0 | +171594 |
| 2standard | 170 | Olczykowski, Tymoteusz (1518) | Lost 1-2 | -191575 |
| 3standard | 646 | Jackson, Brad (1428) | Lost 0-2 | -211554 |
| 4standard | 679 | Rickner, Phil (1517) | Won 2-1 | +171571 |
| 5standard | 631 | Woodward, Colin (1449) | Lost 0-2 | -201551 |
| 6standard | 622 | Morton, Michael (1479) | Won 2-0 | +171568 |
| 7standard | 424 | Kaitila, Aleksi (1487) | Won 2-1 | +161584 |
| 8standard | 321 | Murphy, Lee (1376) | Won 2-0 | +151599 |
| 9standard | 265 | McKenna, Joshua (1475) | Lost 1-2 | -211578 |
| top | average opponent: 1470record: 5-4 | new rating: 1578 | ||
| Grand Prix London 2015 (ORI standard) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 791 | Bebbington, Maxwell (1559) | Won 2-0 | +191516 |
| 2standard | 759 | Schwarzhof, Philipp (1491) | Lost 1-2 | -181498 |
| 3standard | 923 | Miles, Ivan (1500) | Won 2-0 | +181516 |
| 4standard | 904 | Berszieck, Thomas (1530) | Won 2-0 | +181534 |
| 5standard | 674 | Pettersson, Tobias (1540) | Won 2-0 | +181552 |
| 6standard | 672 | Grabowski, Bastian (1639) | Won 2-0 | +201572 |
| 7standard | 466 | Kirkebo, Erlend (1503) | Won 2-0 | +171589 |
| 8standard | 412 | van Ravenzwaaij, Don (2032) | Draw 1-1 | +71596 |
| 9standard | 279 | Quinn, Andrew (1553) | Lost 1-2 | -191577 |
| top | average opponent: 1594record: 6-2-1 | new rating: 1577 | ||
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 78 | Sutton, Alex (1530) | Draw 1-1 | +11479 |
| 2sealed | 438 | Rudge, Nathan (1500) | Won 2-1 | +191498 |
| 3sealed | 353 | Latham, Scott A (1487) | Won 2-0 | +171515 |
| 4sealed | 192 | Bullivant, Martin (1486) | Won 2-1 | +181533 |
| 5sealed | 94 | Garrett, Matthew (1555) | Lost 1-2 | -181515 |
| 6sealed | 238 | Hauchard, Francois (1518) | Lost 0-2 | -181497 |
| top | average opponent: 1513record: 3-2-1 | new rating: 1497 | ||
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 84 | Tull, Simon (1520) | Draw 1-1 | +21426 |
| 3block | 269 | Gresswell, Jake (1519) | Won 2-0 | +191445 |
| 4block | 147 | Glenister, Mark (1714) | Lost 0-2 | -131432 |
| 5block | 300 | Kerr, Nigel (1512) | Draw 1-1 | +11433 |
| 6block | 385 | Evans, Leon (1498) | Won 2-0 | +201453 |
| 7block | 271 | Tucknott, Joshua (1539) | Won 2-0 | +191472 |
| 8block | 186 | Harrison, Adam (1547) | Won 2-0 | +201492 |
| 9block | 121 | Bastos, Frederico (1754) | Lost 0-2 | -141478 |
| top | average opponent: 1575record: 4-2-2 | new rating: 1478 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 656 | Martinetti, Gabriele (1506) | Lost 0-2 | -181479 |
| 2sealed | 769 | Ratcliffe, Mark (1458) | Lost 1-2 | -181461 |
| 3sealed | 849 | Saxton, Joseph (1420) | Lost 1-2 | -191442 |
| 4sealed | 886 | Riley, Heather (1415) | Lost 0-2 | -181424 |
| top | average opponent: 1450record: 0-4 | new rating: 1424 | ||
| Grand Prix London 2011 (MBS limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 48 | Sylvester, Martin R (1500) | Won 2-0 | +181554 |
| 2sealed | 35 | Ostric, Arnaud (1501) | Lost 1-2 | -191535 |
| 3sealed | 72 | Perez, Daniel [ESP] (1482) | Lost 0-2 | -191516 |
| 4sealed | 114 | Simmons, David (1484) | Lost 0-2 | -191497 |
| top | average opponent: 1492record: 1-3 | new rating: 1497 | ||
| Grand Prix Birmingham 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 132 | White, Ben (1500) | Won 2-0 | +181518 |
| 2block | 61 | Stephenson, Calum (1508) | Lost 1-2 | -181500 |
| 3block | 146 | Fulton, Russell (1499) | Won 2-0 | +181518 |
| 4block | 143 | Steiner, Stefan (1623) | Won 2-0 | +201538 |
| 5block | 55 | West, Alexander (1789) | Won 2-1 | +221560 |
| 6block | 39 | Schonherr, Georg (1758) | Won 0-0 | +221582 |
| 7block | 34 | Zuber, Wojciech (1678) | Won 2-0 | +201602 |
| 8block | 16 | Randle, Jonathan (1641) | ID | 01602 |
| 9block | 27 | Barnett, Adam M (1674) | Lost 1-2 | -171585 |
| 10block | 25 | Scharfe, Tai (1559) | Lost 0-2 | -191566 |
| 11block | 31 | Zidek, Arnost (1811) | Lost 1-2 | -131553 |
| 12block | 31 | Vondracek, Zdenek (1581) | Lost 0-2 | -181535 |
| 13block | 31 | Gasparac, Luka (1565) | Won 2-0 | +191554 |
| 14block | 29 | Goh, Gavin (1588) | Lost 1-2 | -181536 |
| top | average opponent: 1627record: 7-6-1 | new rating: 1536 | ||