Jackstadt, Matthew
Current rating: 1354
Record: 4-14
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 22 | Peterson, Greg (1544) | Lost 1-2 | -161383 |
| 2legacy | 293 | Zimmer, Alex (1481) | Lost 1-2 | -161367 |
| 3legacy | 441 | Periot, Maigan (1419) | Lost 0-2 | -171350 |
| 4legacy | 451 | Edwards, Aaron (1451) | Won 2-0 | +201370 |
| 5legacy | 408 | Fink, Steve (1464) | Lost 0-2 | -161354 |
| top | average opponent: 1472record: 1-4 | new rating: 1354 | ||
| Grand Prix New Jersey 2018 (GRN standard) | starting rating: 1396 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 18 | Saypoff, Matthew (1785) | Lost 0-2 | -111385 |
| 2standard | 292 | Dejesus, David (1465) | Lost 0-2 | -161369 |
| 3standard | 531 | Yosmanovich, Peter (1469) | Won 2-1 | +191388 |
| 4standard | 430 | Moss, Justin (1419) | Won 2-0 | +191407 |
| 5standard | 355 | Hubbard, Alan (1712) | Won 2-1 | +231430 |
| 6standard | 305 | Carter, Jonathan (1477) | Lost 1-2 | -171413 |
| 7standard | 335 | Rinauto, Benjamin (1603) | Lost 1-2 | -141399 |
| top | average opponent: 1562record: 3-4 | new rating: 1399 | ||
| Grand Prix Richmond 2018 (leg) (legacy) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 56 | Malkie, Scott (1500) | Lost 1-2 | -171428 |
| 2legacy | 221 | Pawlik, Ryan (1600) | Lost 1-2 | -151413 |
| 3legacy | 380 | Setree, Cody (1470) | Lost 0-2 | -171396 |
| top | average opponent: 1523record: 0-3 | new rating: 1396 | ||
| Grand Prix Hartford 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 294 | Schoerner, Michael (1500) | Lost 0-2 | -181482 |
| 2modern | 690 | Mitchell, Benjamin (1453) | Lost 1-2 | -191463 |
| 3modern | 827 | Lemieux, Christian (1448) | Lost 1-2 | -181445 |
| top | average opponent: 1467record: 0-3 | new rating: 1445 | ||