Cohe, Mackenzie
Current rating: 1445
Record: 2-5
| Grand Prix Washington DC 1999 (UDS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 77 | Bowers-Dean, Rich (1500) | Lost 0-0 | -181482 |
| 2sealed | 132 | Allen, Dustin (1482) | Lost 0-0 | -181464 |
| 3sealed | 172 | Eby, Barry (1464) | Lost 0-0 | -181446 |
| 4sealed | 175 | Velkey, Sumer (1446) | Won 0-0 | +181464 |
| 5sealed | 140 | Howes, Gordon (1447) | Lost 0-0 | -181446 |
| 6sealed | 112 | Martin, Steven (1429) | Lost 0-0 | -191427 |
| 7sealed | 90 | Rampersad, Russell (1411) | Won 0-0 | +181445 |
| average opponent: 1454record: 2-5 | new rating: 1445 | |||