Fielstra, Zachary
Current rating: 1552
Record: 16-14-2
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1582 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Hay, Steven (1500) | Won 2-0 | +161598 |
| 2sealed | 83 | Berry, Kirk (1514) | Lost 0-2 | -191579 |
| 3sealed | 383 | Whyte, Brandon (1504) | Won 2-0 | +161595 |
| 4sealed | 183 | Zadow, Zachary (1517) | Lost 1-2 | -191576 |
| 5sealed | 450 | Jensen, Roma (1504) | Won 2-0 | +171593 |
| 6sealed | 260 | Lodise, Benjamin (1517) | Lost 1-2 | -201573 |
| 7sealed | 381 | Olson, Oliver (1410) | Lost 1-2 | -211552 |
| top | average opponent: 1495record: 3-4 | new rating: 1552 | ||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 18 | Bagha, Jacob (1585) | Draw 1-1 | +11526 |
| 3sealed | 153 | Rothman, Aaron (1523) | Won 2-1 | +181544 |
| 4sealed | 126 | Martell, Tom (1989) | Lost 1-2 | -111533 |
| 5sealed | 205 | HARRIS, CARL (1524) | Won 2-0 | +181551 |
| 6sealed | 132 | Bingham, John (1519) | Won 2-1 | +181569 |
| 7sealed | 84 | Livingston, Steven (1552) | Won 2-0 | +171586 |
| 8sealed | 50 | Elenbogen, Andrew (1764) | Lost 0-2 | -141572 |
| 9sealed | 92 | Hankins, Adam (1570) | Won 2-0 | +181590 |
| 10draft | 61 | Estrada, Caleb (1763) | Lost 1-2 | -151575 |
| 11draft | 33 | Connell, Zoe (1544) | Lost 1-2 | -191556 |
| 12draft | 15 | Lax, Ari (1986) | Won 2-1 | +251581 |
| 13draft | 8 | Gaudard, Jason (1595) | Draw 1-1 | +11582 |
| top | average opponent: 1659record: 6-4-2 | new rating: 1582 | ||
| Grand Prix Chicago 2012 (modern) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 254 | Estrada, Caleb (1626) | Lost 0-2 | -171541 |
| 3modern | 224 | Farmer, Eric (1503) | Won 2-1 | +171558 |
| 4modern | 285 | Davis, Todd (1739) | Lost 1-2 | -141544 |
| 5modern | 327 | Borowski, Joseph (1498) | Lost 1-2 | -191525 |
| top | average opponent: 1591record: 1-3 | new rating: 1525 | ||
| Grand Prix Columbus 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 246 | Monnin, Justin (1500) | Lost 0-2 | -181482 |
| 2modern | 346 | PALMA, PATRICK (1447) | Won 2-1 | +171499 |
| 3modern | 245 | Hayes, Robert (1556) | Won 2-0 | +191518 |
| 4modern | 170 | Herr, Joshua (1712) | Won 2-1 | +221540 |
| 5modern | 119 | Steele, CJ (1516) | Lost 0-2 | -191521 |
| 6modern | 316 | Anderson, James D (1482) | Won 2-0 | +181539 |
| 7modern | 154 | Madouse, Kurt (1554) | Won 2-0 | +181557 |
| 8modern | 167 | Foster, Jeph (1457) | Lost 0-2 | -201537 |
| 9modern | 175 | Benson, Jordan (1678) | Won 2-0 | +211558 |
| top | average opponent: 1545record: 6-3 | new rating: 1558 | ||