Marhefke, Matthew
Current rating: 1522
Record: 4-3
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 242 | Smith, Madison (1579) | Won 2-0 | +191519 |
| 2modern | 159 | Mueller, Michael (1520) | Lost 0-2 | -181501 |
| 3modern | 202 | Schindler, Cole (1433) | Won 2-1 | +171518 |
| 4modern | 261 | Ganzi, Robert (1449) | Won 2-0 | +171535 |
| 5modern | 70 | Woodward, Scott (1597) | Won 2-1 | +191554 |
| 6modern | 116 | Henschel, Eric (1550) | Lost 0-2 | -181536 |
| 7modern | 107 | Hart, Brian (1735) | Lost 1-2 | -141522 |
| average opponent: 1552record: 4-3 | new rating: 1522 | |||