Jones, Zack
Current rating: 1431
Record: 14-19-1
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1417 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 310 | Donald, Jason (1526) | Won 2-1 | +201437 |
| 2standard | 74 | Zadniprovskiy, Leonid (1518) | Lost 1-2 | -171420 |
| 3standard | 650 | Hsieh, Calvin (1449) | Won 2-1 | +191439 |
| 4standard | 203 | Phillips, Cedric (1903) | Lost 0-2 | -101429 |
| 5standard | 471 | Cruz, Jordan (1502) | Won 2-1 | +191448 |
| 6standard | 334 | Kreiter, Josh (1429) | Draw 1-1 | 01448 |
| 7standard | 366 | Osterdal, Calvin (1520) | Lost 1-2 | -171431 |
| top | average opponent: 1549record: 3-3-1 | new rating: 1431 | ||
| Grand Prix Madison 2015 (BFZ limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 423 | Bednarek, Ryland (1500) | Lost 0-2 | -171451 |
| 2sealed | 610 | Gutierrez, Rob (1419) | Lost 0-2 | -191432 |
| 3sealed | 717 | Raway, Peter (1577) | Lost 0-2 | -151417 |
| top | average opponent: 1498record: 0-3 | new rating: 1417 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 865 | Gladden, James (1504) | Lost 0-2 | -181504 |
| 4modern | 815 | Ledford, Travis (1528) | Lost 1-2 | -181486 |
| 5modern | 973 | Smith, Nathaniel A 8494 (1498) | Lost 0-2 | -181468 |
| top | average opponent: 1510record: 0-3 | new rating: 1468 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 310 | Mangner, Sean (1782) | Won 2-1 | +231520 |
| 2sealed | 237 | Brennan, Niall (1518) | Won 2-1 | +181538 |
| 3sealed | 196 | Jaramillo, Blaven (1480) | Lost 0-2 | -191519 |
| 4sealed | 147 | Vigderman, Constantine (1693) | Won 2-0 | +211540 |
| 5sealed | 71 | Catterson, Randy (1553) | Won 2-1 | +181558 |
| 6sealed | 61 | Costa, Joseph (1524) | Lost 0-2 | -181540 |
| 7sealed | 112 | Gritt, Adam (1539) | Lost 1-2 | -181522 |
| top | average opponent: 1584record: 4-3 | new rating: 1522 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 78 | Dennehy, Kyle (1497) | Lost 0-2 | -181497 |
| top | record: 0-1 | new rating: 1497 | ||
| Grand Prix Portland 2013 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 142 | Jones, Nick (1520) | Won 2-0 | +181536 |
| 2modern | 125 | Ferguson, Duncan (1517) | Won 2-1 | +171553 |
| 3modern | 123 | Howland, Spencer (1539) | Lost 0-2 | -181535 |
| 4modern | 253 | Romero, Mike (1518) | Won 2-1 | +181553 |
| 5modern | 164 | Christian, Samuel (1569) | Lost 1-2 | -181535 |
| 6modern | 288 | Johnson, Morgan (1449) | Lost 1-2 | -201515 |
| top | average opponent: 1519record: 3-3 | new rating: 1515 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 1 | Hawks, Brandon (1446) | Lost 0-2 | -191481 |
| 2block | 268 | Turrubiartes, Garrett A (1482) | Lost 0-2 | -181463 |
| 3block | 275 | Fraser, Howard (1466) | Won 2-0 | +181481 |
| 4block | 250 | Ayala, Abraham (1499) | Won 2-1 | +181499 |
| 5block | 228 | Valencia, Nicolas (1500) | Won 2-0 | +181517 |
| 6block | 132 | Laucke, Michael (1527) | Won 2-1 | +191536 |
| 7block | 72 | Silsby, James (1536) | Lost 1-2 | -181518 |
| top | average opponent: 1494record: 4-3 | new rating: 1518 | ||