Calvert, Marshall
Current rating: 1297
Record: 9-23
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1320 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 332 | Tait, Ryan (1500) | Won 2-1 | +221342 |
| 2sealed | 53 | Smet, Roald (1499) | Lost 0-2 | -151327 |
| 3sealed | 256 | Kastner, Jacob (1501) | Lost 0-2 | -151312 |
| 4sealed | 439 | Sacks, Justin (1481) | Lost 0-2 | -151297 |
| top | average opponent: 1495record: 1-3 | new rating: 1297 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1352 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 242 | Wilhelm, Tobias (1480) | Lost 0-2 | -161336 |
| 2modern | 1012 | Benke, Joseph (1419) | Won 2-1 | +201356 |
| 3modern | 916 | Stensvold, Ryan (1390) | Lost 0-2 | -181338 |
| 4modern | 1158 | Ibarra-Leal, Jesus (1346) | Lost 0-2 | -181320 |
| top | average opponent: 1409record: 1-3 | new rating: 1320 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 486 | Stilts, Adam (1505) | Lost 1-2 | -151352 |
| top | record: 0-1 | new rating: 1352 | ||
| Grand Prix Las Vegas 2017 (legacy) (legacy) | starting rating: 1409 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 152 | Hughes, Daniel (1481) | Won 2-0 | +191428 |
| 2legacy | 128 | Miller, Kyle6751 (1517) | Lost 1-2 | -161412 |
| 3legacy | 831 | Hughes, Joshua (1432) | Won 2-0 | +181430 |
| 4legacy | 707 | Miranda, Fabricio (1538) | Lost 0-2 | -161414 |
| 5legacy | 841 | Ferry, Sergio (1628) | Lost 0-2 | -141400 |
| 6legacy | 850 | Ida, Justin (1442) | Lost 0-2 | -171383 |
| 7legacy | 848 | Wadsworth, Jared (1537) | Lost 0-2 | -161367 |
| top | average opponent: 1511record: 2-5 | new rating: 1367 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 269 | Briggs, Samuel (1500) | Won 2-1 | +201450 |
| 2standard | 150 | Ma, Jonathan (1674) | Lost 1-2 | -141436 |
| 3standard | 328 | Lesnick, Daniel (1497) | Won 2-0 | +191455 |
| 4standard | 284 | de Togni, Marco (1721) | Lost 1-2 | -131442 |
| 5standard | 359 | Miller, Brady (1501) | Lost 1-2 | -171425 |
| 6standard | 504 | Barbian, Joshua (1539) | Lost 0-2 | -161409 |
| top | average opponent: 1572record: 2-4 | new rating: 1409 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 25 | Delles, James (1538) | Lost 1-2 | -161448 |
| 2sealed | 196 | Healey Jr., Robert (1482) | Lost 0-2 | -181430 |
| top | average opponent: 1510record: 0-2 | new rating: 1430 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 409 | Rowland, Ryan (1464) | Won 2-0 | +171517 |
| 2standard | 151 | Young, San (1646) | Lost 0-2 | -151502 |
| 3standard | 610 | Kho, Richard (1478) | Lost 0-2 | -191483 |
| 4standard | 593 | Fabian, Tim (1481) | Won 2-1 | +181501 |
| 5standard | 448 | Woods, Ashley (1498) | Won 2-1 | +181519 |
| 6standard | 308 | Keith, Andrew (1531) | Lost 0-2 | -181501 |
| 7standard | 436 | Handel, Anton (1513) | Lost 0-2 | -171484 |
| 8standard | 371 | Kikta, Mark (1419) | Lost 0-2 | -201464 |
| top | average opponent: 1504record: 3-5 | new rating: 1464 | ||