Katz, Jamie
Current rating: 1599
Record: 34-30-1
| Grand Prix Reno 2020 (THB limited) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 57 | Tiffer, Sean (1500) | Won 2-1 | +171587 |
| 2sealed | 36 | Stocks, Jonathan (1780) | Won 2-0 | +211608 |
| 3sealed | 25 | Anaraki, BG (1395) | Lost 1-2 | -221586 |
| 4sealed | 166 | Bradley, Patrick (1502) | Lost 0-2 | -191567 |
| 5sealed | 215 | Giri, Raj (1506) | Won 2-0 | +171584 |
| 6sealed | 100 | Mason, Colton (1523) | Won 2-0 | +171601 |
| 7sealed | 88 | Leavitt, Joseph (1554) | Won 2-1 | +171618 |
| 8sealed | 70 | Marcy, Jordan (1563) | Lost 0-2 | -191599 |
| top | average opponent: 1540record: 5-3 | new rating: 1599 | ||
| Grand Prix Portland 2019 (ELD standard) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 18 | Patrick, Stephen (1525) | Won 2-0 | +181529 |
| 2standard | 1 | Aker, Clint (1634) | Won 2-1 | +201549 |
| 3standard | 60 | O'Connor, Michael (1657) | Lost 0-0 | -161533 |
| 4standard | 77 | Brown, Issac (1522) | Won 2-0 | +181551 |
| 5standard | 80 | [anonymous] | Draw 1-1 | +31554 |
| 6standard | 80 | Major, Michael (1420) | Won 2-0 | +161570 |
| 7standard | 49 | Hager, Nathan (1564) | Lost 0-2 | -181552 |
| 8standard | 81 | Vinn, Mike (1574) | Won 2-0 | +181570 |
| top | average opponent: 1580record: 5-2-1 | new rating: 1570 | ||
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 349 | Chang, Robin (1583) | Lost 0-2 | -161482 |
| A2sealed | 602 | Rizzi, Francesco (1406) | Won 2-0 | +161498 |
| A3sealed | 375 | Jackson, Vincent (1601) | Won 2-0 | +201518 |
| A4sealed | 271 | Weinreich, Brian (1699) | Lost 1-2 | -151503 |
| A5sealed | 339 | Warren, Daniel (1455) | Won 2-0 | +171520 |
| A6sealed | 264 | West, Alexander (1824) | Lost 1-2 | -121508 |
| B1sealed | 409 | Antonelli, Luc (1593) | Lost 1-2 | -171491 |
| B2sealed | 665 | Tonkin, Adam (1395) | Lost 0-2 | -191472 |
| B3sealed | 542 | Begg, John (1521) | Won 2-0 | +191491 |
| B4sealed | 472 | Kotz, Jack (1453) | Won 2-1 | +171508 |
| B5sealed | 302 | Lue, Wen-Hao (1513) | Won 2-0 | +181526 |
| B6sealed | 274 | Fung, Jeff (1680) | Lost 0-2 | -151511 |
| top | average opponent: 1560record: 6-6 | new rating: 1511 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 228 | Espericueta, Eduardo (1500) | Lost 1-2 | -181458 |
| 2sealed | 355 | Liquorish, Julian (1482) | Won 1-0 | +191477 |
| 3sealed | 318 | DiLeo, Christopher (1497) | Won 2-0 | +181495 |
| 4sealed | 329 | Clark, Tyler (1582) | Lost 0-2 | -161479 |
| 5sealed | 375 | Chiang, Will (1568) | Won 2-0 | +191498 |
| 6sealed | 273 | Luthye, Evan (1549) | Lost 0-2 | -171481 |
| 7sealed | 342 | Puno, Cyril (1468) | Lost 1-2 | -181463 |
| 8sealed | 343 | Jacobson-Heck, Matthew (1484) | Won 2-0 | +181481 |
| 9sealed | 279 | Rodriguez Frye, Karel (1411) | Won 2-0 | +171498 |
| top | average opponent: 1505record: 5-4 | new rating: 1498 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 764 | Nelson, Joshua (1519) | Won 2-0 | +191483 |
| 2sealed | 36 | De Santis, Andrew (1519) | Lost 1-2 | -171466 |
| 3sealed | 969 | Carranza, Jaime (1545) | Won 2-1 | +191485 |
| 4sealed | 456 | Pearce, Matthew (1531) | Won 2-1 | +191504 |
| 5sealed | 198 | Stone, Daniel (1497) | Lost 0-2 | -181486 |
| 6sealed | 539 | Choma, Tom (1681) | Won 2-1 | +211507 |
| 7sealed | 233 | Aull, Katherine (1610) | Lost 0-2 | -161491 |
| 8sealed | 396 | Tan, Jowie (1638) | Lost 0-2 | -151476 |
| top | average opponent: 1567record: 4-4 | new rating: 1476 | ||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Young, Michael M (1542) | Won 2-0 | +191520 |
| 2sealed | 257 | Pallares, Ismael (1517) | Lost 0-2 | -181502 |
| 3sealed | 437 | Van Den Berg, Joseph (1437) | Lost 1-2 | -201482 |
| 4sealed | 818 | Schaefer, Michael (1489) | Won 2-0 | +191501 |
| 5sealed | 413 | Fosth, Ian (1483) | Lost 1-2 | -191482 |
| 6sealed | 595 | Frentz, Michael (1466) | Lost 1-2 | -181464 |
| top | average opponent: 1489record: 2-4 | new rating: 1464 | ||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 410 | Griffin, Marc (1500) | Lost 1-2 | -181500 |
| 2standard | 644 | Brackeen, Kevin (1482) | Lost 1-2 | -191481 |
| 3standard | 851 | LaMunyon, Josh (1546) | Won 2-0 | +191500 |
| 4standard | 735 | Watkins, Dylan (1480) | Won 1-0 | +181518 |
| 5standard | 682 | Shen, Eric (1654) | Lost 1-2 | -161502 |
| 6standard | 614 | Rueckl, Joseph (1490) | Won 2-0 | +181520 |
| 7standard | 446 | Benedetti, Michael (1446) | Lost 0-2 | -191501 |
| top | average opponent: 1514record: 3-4 | new rating: 1501 | ||
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 277 | Plazek, Joseph (1500) | Won 2-1 | +181518 |
| 2sealed | 307 | Emler, David (1495) | Won 2-0 | +181536 |
| 3sealed | 294 | Colosimo, John (1456) | Lost 1-2 | -201516 |
| 4sealed | 224 | Seed, Huckleberry (1540) | Won 2-0 | +191535 |
| 5sealed | 381 | Cassidy, Nicolas (1534) | Won 2-1 | +181553 |
| 6sealed | 212 | Zhang, Peter (1626) | Lost 1-2 | -171536 |
| 7sealed | 177 | Rooda, David (1533) | Lost 0-2 | -181518 |
| top | average opponent: 1526record: 4-3 | new rating: 1518 | ||