Konchan, Zachary
Current rating: 1456
Record: 6-9
| Grand Prix Detroit 2016 (modern) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 517 | Burghdoff, Derek (1500) | Won 2-0 | +181521 |
| 2modern | 452 | Maynard, Jacob (1918) | Lost 0-2 | -111510 |
| 3modern | 900 | Ski, Kendra (1500) | Won 2-0 | +181528 |
| 4modern | 758 | Schafer, Gregory (1563) | Lost 0-2 | -171511 |
| 5modern | 877 | Galica, Ryan (1496) | Lost 0-2 | -191492 |
| 6modern | 854 | Pawliuk, Micheal (1485) | Lost 1-2 | -181474 |
| 7modern | 914 | Forist, Logan (1465) | Won 2-0 | +181492 |
| 8modern | 710 | Powers, Kylee (1471) | Lost 0-2 | -181474 |
| 9modern | 639 | Williams, Gabriel (1524) | Lost 0-2 | -181456 |
| average opponent: 1547record: 3-6 | new rating: 1456 | |||
| Grand Prix Detroit 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 101 | Rutledge, Aaron M (1461) | Won 2-1 | +171517 |
| 2modern | 42 | Rai, Simrit (1554) | Won 0-0 | +191536 |
| 3modern | 6 | Dove, Steven (1500) | Lost 0-2 | -191517 |
| 4modern | 400 | Nighbor, Chris (1694) | Lost 1-2 | -151502 |
| 5modern | 384 | Mozden, Joshua (1421) | Won 2-0 | +171519 |
| 6modern | 422 | Bisson, Stephane (1641) | Lost 0-2 | -161503 |
| average opponent: 1545record: 3-3 | new rating: 1503 | |||