Beckfield, John
Current rating: 1469
Record: 16-18
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 7 | Wang, Xiaolang (1481) | Won 2-0 | +181508 |
| 2sealed | 133 | Yee-Fong, Paul (1483) | Lost 0-2 | -191489 |
| 3sealed | 821 | Lotero, Ariel (1380) | Won 2-0 | +161505 |
| 4sealed | 457 | Kossman, Matthew (1536) | Lost 0-2 | -171488 |
| 5sealed | 639 | Nelson, Colleen (1469) | Lost 1-2 | -191469 |
| top | average opponent: 1470record: 2-3 | new rating: 1469 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Koppenhoefer, Robert (1500) | Won 2-0 | +181489 |
| 2sealed | 58 | Belknap, Randy (1513) | Won 2-0 | +191508 |
| 3sealed | 129 | Pressley, Logan (1500) | Lost 1-2 | -181490 |
| top | average opponent: 1504record: 2-1 | new rating: 1490 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 374 | Clelland, Hayden (1484) | Won 2-1 | +171525 |
| 2sealed | 263 | Kagey, Henry (1518) | Lost 1-2 | -181507 |
| 3sealed | 416 | Bjarke, Nels (1501) | Lost 1-2 | -181489 |
| 4sealed | 429 | Anderl, Alex (1483) | Lost 1-2 | -181471 |
| top | average opponent: 1497record: 1-3 | new rating: 1471 | ||
| Grand Prix San Diego 2013 (modern) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 54 | Tachiyama, Jamie P (1422) | Lost 1-2 | -211530 |
| 2modern | 232 | Davis, Ronnell (1482) | Lost 1-2 | -181512 |
| 3modern | 304 | Bryan, Christopher (1464) | Won 2-1 | +171529 |
| 4modern | 310 | Gilmore, Michael (1486) | Won 2-1 | +171546 |
| 5modern | 213 | Topp, Jordan (1470) | Lost 1-2 | -201526 |
| 6modern | 249 | Salamat, Amir (1485) | Lost 1-2 | -181508 |
| top | average opponent: 1468record: 2-4 | new rating: 1508 | ||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 76 | Ford, Jonathan (1500) | Won 2-1 | +181540 |
| 2sealed | 70 | Tamblyn, Alex (1502) | Lost 0-2 | -191521 |
| 3sealed | 113 | Cramer, Ronald (1501) | Won 2-1 | +181539 |
| 4sealed | 140 | Gonzalez, Juan Pablo (1518) | Won 2-1 | +181557 |
| 5sealed | 97 | Chapin, Patrick (1949) | Won 2-0 | +241581 |
| 6sealed | 79 | Juarez, Chad (1643) | Lost 0-2 | -171564 |
| 7sealed | 59 | Loucks, Jonathon (1802) | Lost 1-2 | -131551 |
| top | average opponent: 1631record: 4-3 | new rating: 1551 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 300 | Yale, Paul A (1500) | Won 2-1 | +181518 |
| 2sealed | 310 | Wright, Abraham (1518) | Won 2-0 | +181536 |
| 3sealed | 84 | Fung, Jeff (1650) | Lost 0-2 | -161520 |
| 4sealed | 361 | Barnett, Stephen (1695) | Won 2-1 | +211541 |
| 5sealed | 163 | Morgan, Isadore (1520) | Lost 0-2 | -181523 |
| 6sealed | 202 | Atashian, Christopher (1558) | Lost 0-2 | -181505 |
| 7sealed | 278 | Arkin, Evan (1500) | Won 2-0 | +181523 |
| 8sealed | 197 | Wascisin, William (1485) | Won 2-1 | +181541 |
| 9sealed | 137 | Pollock, Robert (1526) | Lost 0-2 | -191522 |
| top | average opponent: 1550record: 5-4 | new rating: 1522 | ||