Mittendorf, Jon
Current rating: 1643
Record: 15-8
| Grand Prix Phoenix 2018 (modern) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 324 | Nielsen, Bob (1500) | Won 2-0 | +161620 |
| 2modern | 68 | Horak, Nathan (1548) | Won 2-0 | +171637 |
| 3modern | 211 | Zhang, Bolun (1959) | Won 2-1 | +241661 |
| 4modern | 43 | Blubaugh, Lachlan (1517) | Won 2-0 | +151676 |
| 5modern | 15 | Parker, Kevin (1673) | Lost 0-2 | -181658 |
| 6modern | 87 | Festini, Mark (1924) | Won 2-0 | +231681 |
| 7modern | 49 | Meyer, Ben (1693) | Lost 0-2 | -181663 |
| 8modern | 132 | Pfeifer, Richard (1562) | Lost 0-2 | -201643 |
| average opponent: 1672record: 5-3 | new rating: 1643 | |||
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 393 | Vallie, Josiah (1500) | Won 2-1 | +181518 |
| 2modern | 403 | Unger, Daniel (1445) | Won 2-0 | +171535 |
| 3modern | 404 | Buchner, Hans (1626) | Won 2-1 | +191554 |
| 4modern | 224 | Merriam, Ross (1987) | Lost 1-2 | -101544 |
| 5modern | 283 | Calamaro, Yaakov (1535) | Lost 0-2 | -181526 |
| 6modern | 305 | Kauffman, Derek (1484) | Won 2-0 | +171543 |
| 7modern | 417 | Unthank, Harrison (1539) | Lost 1-2 | -181525 |
| 8modern | 322 | Stilts, Adam (1597) | Won 2-0 | +191544 |
| 9modern | 292 | Krueger, Erik (1482) | Won 2-0 | +171561 |
| 10modern | 977 | Holcomb, Michael (1547) | Won 2-1 | +181579 |
| 11modern | 975 | Orrmons, Kale (1636) | Lost 1-2 | -171562 |
| 12modern | 982 | Woodworth, Rob (1651) | Won 2-1 | +191581 |
| 13modern | 985 | Rayl, Bryan (1568) | Won 2-0 | +181599 |
| 14modern | 907 | Perlee, Travis (1725) | Lost 1-2 | -161583 |
| 15modern | 961 | Reeves, Brian (1745) | Won 2-1 | +211604 |
| average opponent: 1604record: 10-5 | new rating: 1604 | |||