Kastner, Jacob
Current rating: 1626
Record: 20-15
| Grand Prix Phoenix 2018 (modern) | starting rating: 1657 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 23 | Lee, Damien (1467) | Lost 1-2 | -211636 |
| 2modern | 424 | Stoker, Clint (1482) | Won 2-1 | +151651 |
| 3modern | 526 | McMillan, Shelly (1390) | Won 2-0 | +131664 |
| 4modern | 263 | Fjellander, Tobias (1697) | Lost 0-2 | -171647 |
| 5modern | 324 | Lovold, Richard (1503) | Lost 0-2 | -211626 |
| top | average opponent: 1508record: 2-3 | new rating: 1626 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 296 | Walker, Joshua (1588) | Won 2-0 | +201517 |
| 2sealed | 12 | Fox, Adam H (1626) | Lost 0-2 | -161501 |
| 3sealed | 256 | Calvert, Marshall (1327) | Won 2-0 | +151516 |
| 4sealed | 257 | Bourque, Jacob (1501) | Lost 1-2 | -191497 |
| 5sealed | 340 | Muldoon, Jesse (1393) | Won 2-0 | +161513 |
| 6sealed | 340 | Eyre, Karl (1787) | Won 2-1 | +231536 |
| 7sealed | 134 | Tafoya, Michael (1622) | Won 2-0 | +201556 |
| 8sealed | 118 | Corbin, Julia (1601) | Won 2-1 | +191575 |
| 9sealed | 57 | Fournier, Daniel (1956) | Won 2-0 | +241599 |
| 10draft | 123 | Caudill, Eddie (1985) | Won 2-1 | +251624 |
| 11draft | 59 | Freeman, Zackery (1811) | Won 2-1 | +211645 |
| 12draft | 121 | Rhett, Brian (1669) | Won 2-1 | +191664 |
| 13draft | 45 | Pare, Jean-Michel (1908) | Won 2-0 | +221686 |
| 14draft | 114 | Niday, Lucas (1750) | Lost 0-2 | -171669 |
| 15draft | 5 | Burkhart, Corey (1996) | Lost 1-2 | -121657 |
| top | average opponent: 1701record: 11-4 | new rating: 1657 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 201 | Bonacini, Michael (1710) | Won 2-1 | +221482 |
| 2sealed | 505 | Ochoa, Dustin (1603) | Lost 0-2 | -151467 |
| 3sealed | 774 | Odorizzi, Christopher (1702) | Won 2-1 | +221489 |
| 4sealed | 664 | Warren, Tyler (1513) | Won 2-1 | +181507 |
| 5sealed | 455 | Longo, Tyler (1694) | Lost 1-2 | -141493 |
| 6sealed | 416 | Fyfe, Max (1648) | Won 2-1 | +201513 |
| 7sealed | 300 | Romero, Guillermo (1525) | Lost 1-2 | -171496 |
| 8sealed | 493 | Smith, Chris (1453) | Won 2-0 | +171513 |
| 9sealed | 400 | Walterman, Austin (1638) | Lost 0-2 | -161497 |
| top | average opponent: 1610record: 5-4 | new rating: 1497 | ||
| Grand Prix Milwaukee 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 212 | Sherman, Anthony (1441) | Lost 1-2 | -191481 |
| 2sealed | 470 | Baklund, Zachary (1446) | Lost 0-2 | -191462 |
| 3sealed | 583 | Dusik, Eric (1451) | Lost 0-2 | -181444 |
| 4sealed | 611 | Paulus, Jennifer (1368) | Lost 1-2 | -191425 |
| 5sealed | 573 | Henkes, Daric (1429) | Won 2-0 | +181443 |
| 6sealed | 517 | Lu, Wayne (1394) | Won 2-0 | +171460 |
| top | average opponent: 1422record: 2-4 | new rating: 1460 | ||