Mackiewicz, Stefan R
Current rating: 1556
Record: 6-3
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 206 | Lee, Aaron (1500) | Won 2-1 | +181518 |
| 2standard | 126 | Harrington, Corey (1517) | Lost 0-2 | -181500 |
| 3standard | 378 | Mohr, Tim (1522) | Lost 1-2 | -181482 |
| 4standard | 375 | Connell, Zoe (1477) | Won 1-0 | +181500 |
| 5standard | 267 | Sulla, Aaron (1625) | Won 2-0 | +211521 |
| 6standard | 245 | Kelly, Tyler (1519) | Won 2-1 | +181539 |
| 7standard | 222 | Smith, Gerald (1541) | Won 2-0 | +181557 |
| 8standard | 64 | Lamminen, Alexander B (1555) | Won 2-0 | +181575 |
| 9standard | 88 | Simonetti, Michael (1568) | Lost 0-2 | -191556 |
| average opponent: 1536record: 6-3 | new rating: 1556 | |||