Powell, Richard
Current rating: 1374
Record: 10-19
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1395 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 144 | Volberg, Mats (1538) | Lost 1-2 | -151380 |
| 2block | 480 | Sailes, Mark (1482) | Won 2-0 | +191399 |
| 3block | 484 | Stuart, Alex (1498) | Won 2-1 | +201419 |
| 4block | 306 | Evans, Ollie (1518) | Won 2-1 | +201439 |
| 5block | 278 | Griffiths, Sam (1535) | Lost 0-2 | -161423 |
| 6block | 195 | Nielsen, Simon (1669) | Lost 0-1 | -141409 |
| 7block | 341 | Krunka, Petr (1498) | Lost 1-2 | -161393 |
| 8block | 306 | Osthof, Nicole (1343) | Lost 0-2 | -191374 |
| top | average opponent: 1510record: 3-5 | new rating: 1374 | ||
| Grand Prix Madrid 2010 (legacy) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 703 | Loeb, Davy (1763) | Lost 1-2 | -121429 |
| 5legacy | 863 | Padilla, Sergio (1469) | Lost 0-2 | -171412 |
| 6legacy | 926 | Munoz, Adrian (1485) | Lost 1-2 | -171395 |
| top | average opponent: 1573record: 0-3 | new rating: 1395 | ||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 128 | Nauer, Gerry (1500) | Lost 0-2 | -181440 |
| 2sealed | 275 | Vlaminck, David (1445) | Won 2-0 | +181458 |
| 3sealed | 246 | Judd, Matthew (1501) | Lost 1-2 | -171441 |
| top | average opponent: 1482record: 1-2 | new rating: 1441 | ||
| Grand Prix Birmingham 2004 (DST limited) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 153 | Kotze, Johannes (1500) | Lost 0-1 | -171433 |
| 2sealed | 205 | Marriott, Richard (1481) | Won 2-0 | +191452 |
| 3sealed | 131 | Knowles, Chris (1496) | Lost 0-2 | -171435 |
| 4sealed | 179 | Seguin, Frederick (1518) | Lost 0-2 | -171418 |
| 5sealed | 211 | Greaves, Richard (1466) | Won 2-0 | +191437 |
| 6sealed | 158 | Welsh, Louise (1486) | Won 2-0 | +191456 |
| 7sealed | 143 | Stokes, Chris (1518) | Won 2-0 | +191475 |
| 8sealed | 85 | Rossiter, Christopher (1510) | Lost 0-2 | -171458 |
| top | average opponent: 1497record: 4-4 | new rating: 1458 | ||
| Grand Prix London 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 153 | Jones, Andy (1500) | Lost 1-2 | -181482 |
| 3block | 175 | Merriman, Darren (1500) | Won 2-1 | +181500 |
| 4block | 128 | Norda, Jason (1523) | Won 2-0 | +191519 |
| 5block | 89 | Thevenon, Sandy (1539) | Lost 1-2 | -181501 |
| 6block | 146 | Payen, Laurent (1615) | Lost 1-2 | -161485 |
| 7block | 126 | Doering, Alexander (1509) | Lost 0-2 | -171468 |
| 8block | 125 | Janon, Quentin (1483) | Lost 0-2 | -181450 |
| top | average opponent: 1524record: 2-5 | new rating: 1450 | ||