Alexander, David L
Current rating: 1462
Record: 4-6-1
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 374 | Quick, Nathan J (1500) | Lost 0-2 | -181480 |
| 2sealed | 585 | Weech, Sean S (1483) | Won 2-1 | +181498 |
| 3sealed | 568 | Phoenix, Mike J (1500) | Lost 0-2 | -181480 |
| 4sealed | 620 | Thuot, Jean-francois (1481) | Lost 1-2 | -181462 |
| average opponent: 1491record: 1-3 | new rating: 1462 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 13 | Cutler, Tim (1412) | Won 2-1 | +161516 |
| 2standard | 203 | Kuzia, Derek K (1518) | Won 2-0 | +181534 |
| 3standard | 120 | Gestido, Nick (1536) | Draw 1-1 | 01534 |
| 4standard | 119 | Vazquez, Kristian (1537) | Won 2-1 | +191553 |
| 5standard | 53 | Houser, Zack R (1555) | Lost 0-2 | -181535 |
| 6standard | 124 | Coffey, Douglas A (1519) | Lost 0-2 | -191516 |
| 7standard | 193 | Kahlo, Chase P (1518) | Lost 0-2 | -181498 |
| average opponent: 1514record: 3-3-1 | new rating: 1498 | |||