Shumaker, Luke
Current rating: 1462
Record: 5-7
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 713 | Coleman, Philip (1488) | Won 2-1 | +181499 |
| 2modern | 33 | Galdamez, Brian (1518) | Lost 1-2 | -181481 |
| 3modern | 648 | Ketterling, Austin (1438) | Won 2-1 | +171498 |
| 4modern | 443 | Tracy, Shane (1467) | Lost 0-2 | -181480 |
| 5modern | 615 | Brock, Michael (1416) | Won 2-0 | +171497 |
| 6modern | 336 | Adderson, Russell (1599) | Lost 0-2 | -171480 |
| 7modern | 739 | Truong, Kevin (1480) | Lost 0-2 | -181462 |
| average opponent: 1487record: 3-4 | new rating: 1462 | |||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 354 | Schy, Jesse (1445) | Lost 0-1 | -191481 |
| 2standard | 514 | Allen, Nolan (1482) | Lost 1-2 | -181463 |
| 3standard | 662 | Lee, Tony (1477) | Won 2-1 | +181481 |
| 4standard | 626 | Punsalan, Gilbert (1465) | Lost 0-2 | -181463 |
| 5standard | 570 | Velazquez, Daniel (1445) | Won 2-0 | +181481 |
| average opponent: 1463record: 2-3 | new rating: 1481 | |||