Jacobowitz, Daniel
Current rating: 1521
Record: 19-18-1
| Grand Prix New Jersey 2020 (THB limited) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 10 | Lichtenberg, Steve (1563) | Won 2-0 | +191530 |
| 2sealed | 304 | Johns, John (1544) | Won 2-0 | +181548 |
| 3sealed | 292 | Sturm, Eric (1779) | Won 2-0 | +221570 |
| 4sealed | 60 | Haversat, Jacob (1929) | Lost 0-2 | -111559 |
| 5sealed | 298 | Arnold-Berkovits, Isaac (1537) | Lost 1-2 | -191540 |
| 6sealed | 331 | Lettieri, Matt (1448) | Won 2-1 | +171557 |
| 7sealed | 170 | Galstian, Andrew (1542) | Lost 0-2 | -191538 |
| 8sealed | 210 | Ailes, Nicholas (1566) | Lost 1-2 | -171521 |
| top | average opponent: 1613record: 4-4 | new rating: 1521 | ||
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 148 | Rauchman, Patrick (1469) | Lost 1-2 | -201535 |
| 2sealed | 185 | McCullough, Brandon (1289) | Lost 0-2 | -221513 |
| 3sealed | 313 | Simmons, Jessica (1463) | Won 2-0 | +171530 |
| 4sealed | 281 | Schmidt, Dave (1482) | Lost 0-2 | -191511 |
| top | average opponent: 1426record: 1-3 | new rating: 1511 | ||
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Pearlman, Steven (1491) | Lost 1-2 | -191533 |
| 2sealed | 426 | Lindsey, Ethan (1482) | Won 0-0 | +171550 |
| 3sealed | 297 | von Beschwitz, Bastian (1821) | Lost 0-2 | -131537 |
| 4sealed | 470 | Morton, Victor (1335) | Won 2-1 | +141551 |
| 5sealed | 257 | Petre, Evan (1773) | Won 2-1 | +221573 |
| 6sealed | 240 | Olsen, Christopher (1550) | Lost 1-2 | -181555 |
| top | average opponent: 1575record: 3-3 | new rating: 1555 | ||
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1570 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Lauborough, Jason (1465) | Won 2-1 | +171587 |
| 2sealed | 8 | Swanson, Erik (1787) | Lost 1-2 | -151572 |
| 3sealed | 294 | Weber, Brian (1618) | Won 2-0 | +191591 |
| 4sealed | 305 | Burns, Anthony (1449) | Lost 0-2 | -211570 |
| 5sealed | 319 | Kizuka, Jeremy (1551) | Lost 0-2 | -181552 |
| top | average opponent: 1574record: 2-3 | new rating: 1552 | ||
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 21 | Liu, Justin (1635) | Won 2-0 | +201537 |
| 2sealed | 88 | Ezer, Alon (1514) | Draw 1-1 | 01537 |
| 3sealed | 336 | Michonski, Scott (1518) | Lost 0-2 | -191518 |
| 4sealed | 479 | Baggatta, Daniel (1504) | Won 2-1 | +181536 |
| 5sealed | 336 | Clark, Chase (1492) | Won 2-0 | +171553 |
| 6sealed | 205 | Jacoby, Meg (1545) | Won 2-0 | +181571 |
| 7sealed | 131 | Pennachio, Joe (1557) | Lost 1-2 | -181553 |
| 8sealed | 219 | Ferullo, Michael (1532) | Won 2-0 | +171570 |
| top | average opponent: 1537record: 5-2-1 | new rating: 1570 | ||
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 22 | Campbell, Cory (1500) | Won 2-0 | +181518 |
| 2modern | 584 | Murray, Ryan (1364) | Lost 1-2 | -211497 |
| 3modern | 598 | Edwards, Adam (1551) | Won 2-0 | +191516 |
| 4modern | 379 | Morey, Tyler (1685) | Lost 1-2 | -151501 |
| 5modern | 953 | Wilson, Joshua (1437) | Won 2-1 | +171518 |
| 6modern | 473 | Bryant, James (1522) | Won 2-0 | +181536 |
| 7modern | 269 | McCloskey, Andrew (1468) | Lost 1-2 | -191517 |
| top | average opponent: 1504record: 4-3 | new rating: 1517 | ||