Martin, Josh
Current rating: 1590
Record: 22-17-1
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 795 | Lahodny, Clayton (1500) | Won 2-1 | +161594 |
| 2modern | 1309 | Kordis, Matthew (1604) | Lost 0-2 | -171577 |
| 3modern | 752 | DeCarlo, Thomas (1448) | Won 2-0 | +151592 |
| 4modern | 656 | Barrett, Daniel (1646) | Won 2-1 | +191611 |
| 5modern | 240 | Harris, Kylie (1525) | Lost 0-2 | -191592 |
| 6modern | 422 | Phillips, Joshua 6281 (1512) | Won 2-0 | +161608 |
| 7modern | 307 | Zhang, Jonathan (1597) | Lost 0-2 | -181590 |
| top | average opponent: 1547record: 4-3 | new rating: 1590 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1606 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 347 | Buckwalter, Carole (1500) | Won 2-1 | +161622 |
| 2modern | 191 | Owen, Daniel (1517) | Lost 0-2 | -201602 |
| 3modern | 257 | Giallo, Joseph (1480) | Won 2-0 | +161618 |
| 4modern | 302 | Wallace, Jamie (1507) | Lost 0-2 | -201598 |
| 5modern | 393 | Hamerski, Calvin (1468) | Lost 0-2 | -201578 |
| top | average opponent: 1494record: 2-3 | new rating: 1578 | ||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1630 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 61 | Ashford, Marshall (1501) | Won 2-1 | +151645 |
| 4block | 46 | Amado, Micah (1500) | Lost 1-2 | -201625 |
| 5block | 55 | Letsch, Michael (1488) | Won 2-0 | +151640 |
| 6block | 20 | Herberholz, Mark (1848) | Lost 1-2 | -141626 |
| 7block | 47 | Samuels, Don (1536) | Lost 1-2 | -201606 |
| top | average opponent: 1575record: 2-3 | new rating: 1606 | ||
| Grand Prix Atlanta 2003 (8ED standard) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 45 | Brenner, Tim (1496) | Won 2-0 | +161602 |
| 4standard | 5 | Menzer, Tony (1683) | Won 2-0 | +201622 |
| 5standard | 18 | Stark, Ben S (1770) | Won 2-0 | +201642 |
| 6standard | 15 | Ranks, Matthew (1764) | Lost 0-2 | -151627 |
| 7standard | 24 | Crosby, Joseph (1849) | Lost 1-2 | -141613 |
| 8standard | 60 | McGill, Clint (1553) | Won 2-1 | +171630 |
| top | average opponent: 1686record: 4-2 | new rating: 1630 | ||
| Grand Prix Tampa Bay 2002 (TOR limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 94 | Moldan, David (1500) | Won 2-0 | +171574 |
| 2sealed | 2 | Marks, Marty (1518) | Lost 1-2 | -191555 |
| 3sealed | 86 | Letsch, Michael (1500) | Won 2-1 | +171572 |
| 4sealed | 91 | warren, Tyson (1485) | Lost 0-2 | -191553 |
| 5sealed | 131 | Ihm, Terrence (1504) | Won 2-0 | +171570 |
| 6sealed | 90 | Snavely, Joshua (1520) | Draw 1-1 | -11569 |
| 7sealed | 80 | Underhill, Brad (1522) | Won 1-0 | +171586 |
| top | average opponent: 1507record: 4-2-1 | new rating: 1586 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3extended | 5 | Williams, Doug (1586) | Won 2-0 | +201520 |
| 4extended | 46 | Lane, Adam E (1588) | Lost 1-2 | -171503 |
| 5extended | 97 | Lanzillotta, Jason (1567) | Won 2-0 | +191522 |
| 6extended | 28 | Flores, Michael (1557) | Won 2-1 | +191541 |
| 7extended | 20 | Shwe, Huei-Saint (1573) | ID | 01541 |
| 8extended | 30 | Currence, Bryce (1673) | Lost 0-2 | -161525 |
| 9extended | 26 | Hegstad, Brian (1908) | Lost 0-2 | -111514 |
| 10extended | 32 | Linde, Matt (1720) | Won 2-0 | +211535 |
| 11extended | 26 | Quelle, Blake (1560) | Lost 1-2 | -171518 |
| 12extended | 28 | Davis, Chris (1685) | Won 2-1 | +211539 |
| 13extended | 23 | Starleaf, Derek (1559) | Won 2-0 | +181557 |
| top | average opponent: 1634record: 6-4-1 | new rating: 1557 | ||