Patterson Jr., MacKenzie
Current rating: 1396
Record: 1-7
| Grand Prix Los Angeles 2002 (ONS rochester) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 7 | Young, Dane (1500) | Lost 0-2 | -171429 |
| 5sealed | 45 | Covarrubias, Ismael (1534) | Lost 0-2 | -161413 |
| 6sealed | 114 | Wijaya, Vidianto (1489) | Lost 1-2 | -171396 |
| average opponent: 1508record: 0-3 | new rating: 1396 | |||
| Grand Prix San Diego 1999 (MMQ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Steel, David (1500) | Won 0-0 | +181518 |
| 2sealed | 10 | Chang, Cho-Hon (1518) | Lost 0-0 | -181500 |
| 3sealed | 69 | Chu, Trevor (1500) | Lost 0-2 | -181482 |
| 4sealed | 105 | Smilack, Simeon (1463) | Lost 0-0 | -181464 |
| 5sealed | 105 | Pagliocco, Anthony (1460) | Lost 0-0 | -181446 |
| average opponent: 1488record: 1-4 | new rating: 1446 | |||