Piper, Zachary
Current rating: 1446
Record: 3-6
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 690 | Golk, Arthur (1500) | Lost 1-2 | -181482 |
| 2standard | 869 | Hein, Ronny (1481) | Won 2-0 | +181500 |
| 3standard | 812 | Ohlendorf, Josh (1493) | Lost 0-2 | -181482 |
| 4standard | 899 | Ampulski, Viktor (1482) | Won 2-1 | +181500 |
| 5standard | 783 | Bold Wark, Lewis (1546) | Lost 0-2 | -171483 |
| 6standard | 750 | Johnson, Angelique (1437) | Lost 1-2 | -191464 |
| 7standard | 777 | Ross, Nathan (1463) | Won 2-0 | +181482 |
| 8standard | 698 | Lamm, Rik (1495) | Lost 1-2 | -181464 |
| 9standard | 661 | Barrett, Cory (1466) | Lost 1-2 | -181446 |
| average opponent: 1485record: 3-6 | new rating: 1446 | |||