Haderlein, Peter
Current rating: 1614
Record: 10-5
| Grand Prix Los Angeles 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 271 | Luu, Kevin (1631) | Won 2-1 | +201520 |
| 2modern | 265 | Genova, Andrew (1495) | Lost 1-2 | -181502 |
| 3modern | 598 | Whaley, Jerry (1727) | Won 2-0 | +221524 |
| 4modern | 409 | McDonough, Chris (1513) | Lost 1-2 | -181506 |
| 5modern | 477 | Wells, Christopher (1475) | Won 2-1 | +171523 |
| 6modern | 287 | Lichtblau, Daniel (1612) | Won 2-1 | +201543 |
| 7modern | 140 | An, Peter (1577) | Won 2-1 | +181561 |
| 8modern | 129 | Laughlin, Pierson (1979) | Won 2-1 | +261587 |
| 9modern | 60 | Nguyen, Philip (1550) | Won 2-0 | +171604 |
| 10modern | 90 | Collins, Kenyon (1912) | Lost 0-2 | -131591 |
| 11modern | 117 | Jung, Theodore (1567) | Won 2-1 | +181609 |
| 12modern | 90 | Cook, Cassidy (1620) | Won 2-1 | +181627 |
| 13modern | 42 | Li, Steven (1604) | Lost 1-2 | -181609 |
| 14modern | 71 | Truong, Daniel (1759) | Won 2-1 | +201629 |
| 15modern | 62 | Brunson, Damyan (1791) | Lost 1-2 | -151614 |
| average opponent: 1654record: 10-5 | new rating: 1614 | |||