Piper, Joshuah
Current rating: 1632
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1614 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 188 | McGee, Mark (1500) | Won 2-1 | +161630 |
| 2sealed | 162 | Queary, Nash (1518) | Won 2-1 | +161646 |
| 3sealed | 9 | Pannone, Adam (1687) | Won 2-0 | +191665 |
| 4sealed | 6 | Morison, Kyle (1712) | Lost 1-2 | -181647 |
| 5sealed | 87 | Tautic, Raymond (1866) | Won 2-0 | +221669 |
| 6sealed | 26 | Martin, Clyde (1665) | Lost 1-2 | -181651 |
| 7sealed | 59 | Robbins, Edwin (1573) | Lost 0-2 | -191632 |
| top | average opponent: 1646record: 4-3 | new rating: 1632 | ||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 66 | Bourlier, Brandon (1500) | Won 1-0 | +171577 |
| 2standard | 11 | Johnson, Daniel (1440) | Lost 1-2 | -201557 |
| 3standard | 526 | Marucci, Dominic (1500) | Won 1-0 | +171574 |
| 4standard | 174 | Sheldon, Donald (1570) | Won 2-1 | +181592 |
| 5standard | 256 | Perez, Gaston (1565) | Lost 0-2 | -191573 |
| 6standard | 343 | Gomez, Alonso (1597) | Won 2-1 | +191592 |
| 7standard | 196 | Dreyfus, David (1540) | Won 2-0 | +171609 |
| 8standard | 174 | Smith, Brian (1617) | Won 2-0 | +181627 |
| 9standard | 60 | Manfield, Seth (1915) | Lost 0-2 | -131614 |
| top | average opponent: 1583record: 6-3 | new rating: 1614 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1063 | Davis, Vincent (1541) | Won 2-0 | +191519 |
| 2sealed | 1104 | Ryder, Sean (1618) | Lost 0-2 | -161503 |
| 3sealed | 1218 | Vail, Forrest (1551) | Won 2-0 | +181521 |
| 4sealed | 1245 | Kaufmann, Loran (1566) | Won 2-0 | +191540 |
| 5sealed | 1024 | Gareau, Adrian (1545) | Won 2-1 | +181558 |
| 6sealed | 767 | Zorzi, Giulio (1732) | Lost 1-2 | -151543 |
| 7sealed | 612 | Rodriguez, Michael (1519) | Won 2-1 | +181561 |
| 8sealed | 494 | Hughes, Shaun (1503) | Won 2-1 | +171578 |
| 9sealed | 382 | Hensley, Mark (1594) | Lost 1-2 | -181560 |
| top | average opponent: 1574record: 6-3 | new rating: 1560 | ||