Grabau, Joe
Current rating: 1562
Record: 9-6-1
| Grand Prix Minneapolis 2019 (modern) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 145 | Knopp, Charles (1472) | Lost 1-2 | -191536 |
| 4modern | 265 | Strasler, Noah (1593) | Won 2-0 | +191555 |
| 5modern | 111 | Cole, Malcolm (1574) | Won 2-1 | +181573 |
| 6modern | 77 | Sher, Peyton (1558) | Won 2-1 | +181591 |
| 7modern | 56 | Goslar, Matthew (1698) | Lost 1-2 | -161575 |
| 8modern | 77 | Troiano, Francesco (1866) | Lost 1-2 | -131562 |
| average opponent: 1627record: 3-3 | new rating: 1562 | |||
| Grand Prix Omaha 2017 (AKH standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 37 | Rivers, Kenneth (1500) | Draw 1-1 | 01500 |
| 2standard | 193 | Turson, Graig (1498) | Won 2-0 | +181518 |
| 3standard | 171 | Kilburn, Brian (1419) | Won 2-1 | +161534 |
| 4standard | 96 | Guthrie, Ian (1505) | Won 2-1 | +181552 |
| 5standard | 47 | Nabi, Basil (1904) | Lost 1-2 | -121540 |
| 6standard | 110 | Smith, Mason (1529) | Won 2-1 | +181558 |
| 7standard | 68 | Kilburn, Brad (1504) | Lost 1-2 | -191539 |
| 8standard | 125 | Meyer, Mathias (1600) | Won 2-1 | +191558 |
| 9standard | 79 | Dunkin, Rocky (1543) | Won 2-1 | +171575 |
| 10standard | 53 | Taylor, Robert (1451) | Lost 0-2 | -201555 |
| average opponent: 1545record: 6-3-1 | new rating: 1555 | |||