MacDonald, Joseph
Current rating: 1481
Record: 21-22
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 9 | Altman, Amy (1485) | Won 2-0 | +171540 |
| 3modern | 348 | Jaeger, Tony (1346) | Lost 0-2 | -221518 |
| 4modern | 365 | Jacques, Zachary (1376) | Lost 0-2 | -201498 |
| 5modern | 746 | Sage, Nathan (1554) | Lost 0-2 | -171481 |
| top | average opponent: 1440record: 1-3 | new rating: 1481 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 335 | Richardson, Andrew (1384) | Lost 1-2 | -201490 |
| 2modern | 384 | Cowley, Nick (1445) | Won 2-0 | +171507 |
| 3modern | 494 | Jones, Nicole (1325) | Won 2-0 | +151522 |
| 4modern | 174 | Girard, Andre (1597) | Won 2-1 | +191541 |
| 5modern | 159 | Carewicz, Cameron (1688) | Lost 0-2 | -151526 |
| 6modern | 355 | Allen, Brandon (1445) | Won 2-1 | +161542 |
| 7modern | 188 | Stednitz, David (1445) | Lost 1-2 | -191523 |
| top | average opponent: 1476record: 4-3 | new rating: 1523 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 78 | Loudermilk, Garner (1426) | Lost 1-2 | -191464 |
| 2modern | 704 | Coffelt, Matthew (1536) | Won 2-0 | +201484 |
| 3modern | 829 | Mousseau, Tyler (1501) | Won 2-0 | +181502 |
| 4modern | 565 | Rodriguez, Brian (1481) | Lost 1-2 | -181484 |
| 5modern | 751 | Alonso, Jeovani (1622) | Won 2-1 | +201504 |
| 6modern | 410 | Gulevich, Aaron (1505) | Won 2-0 | +181522 |
| 7modern | 313 | Martell, Tom (1868) | Lost 0-2 | -121510 |
| 8modern | 472 | Owen, Joshua (1526) | Won 2-0 | +191529 |
| 9modern | 340 | Hildebrandt, Will (1509) | Lost 1-2 | -191510 |
| top | average opponent: 1553record: 5-4 | new rating: 1510 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Hahm, Lowell (1431) | Won 2-1 | +161517 |
| 2standard | 149 | Ballmer, Tad (1519) | Won 2-1 | +181535 |
| 3standard | 176 | Wang, Kevin (1538) | Lost 0-2 | -181517 |
| 4standard | 382 | Djiguerian, Aram (1517) | Won 2-1 | +181535 |
| 5standard | 212 | Fondren, Roger (1445) | Lost 1-2 | -191516 |
| 6standard | 222 | Gibson, Jack (1506) | Lost 1-2 | -181498 |
| 7standard | 341 | Herr, Paul (1649) | Won 2-0 | +201518 |
| 8standard | 253 | Nguyen, Kenny (1564) | Lost 0-2 | -171501 |
| 9standard | 255 | Sanchez, Rudy (1520) | Lost 0-2 | -181483 |
| top | average opponent: 1521record: 4-5 | new rating: 1483 | ||
| Grand Prix Salt Lake City 2014 (M15 limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Duhame, Henry (1463) | Won 2-1 | +181482 |
| 2sealed | 21 | Johnson, Jeffery (1478) | Lost 0-2 | -181464 |
| 3sealed | 248 | Ron, Nitzan (1439) | Lost 0-2 | -191445 |
| 4sealed | 325 | Roberts, Collin (1484) | Won 2-1 | +191464 |
| 5sealed | 311 | Pimentel, Joe (1498) | Won 2-0 | +191483 |
| 6sealed | 262 | Bunnell, Brad (1459) | Won 2-1 | +171500 |
| 7sealed | 193 | Bigelow, Jake (1536) | Won 2-1 | +191519 |
| 8sealed | 62 | Wilson, Kyle (1501) | Lost 0-2 | -181501 |
| top | average opponent: 1482record: 5-3 | new rating: 1501 | ||
| Grand Prix Salt Lake City 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 220 | Carpinelli, Fabiano (1500) | Lost 0-2 | -181482 |
| 2standard | 411 | Baker, Jonathan (1482) | Won 2-0 | +181500 |
| 3standard | 313 | Kriehn, Kyle (1499) | Lost 1-2 | -181482 |
| 4standard | 482 | Scott, Kade (1479) | Won 2-0 | +181500 |
| 5standard | 368 | Santos, Benedict (1499) | Lost 1-2 | -181482 |
| 6standard | 353 | Evans, Alexander V (1480) | Lost 0-2 | -181464 |
| top | average opponent: 1490record: 2-4 | new rating: 1464 | ||