Johnson, Randall
Current rating: 1450
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 162 | Brassard, Scott (1500) | Won 2-0 | +191463 |
| 2standard | 227 | Parker, Gregory (1518) | Won 2-1 | +191482 |
| 3standard | 47 | Vicini, Patrick (1535) | Lost 0-2 | -171465 |
| 4standard | 220 | McLean, Drew (1572) | Lost 1-2 | -161449 |
| 5standard | 235 | Haynes, Michael (1449) | Won 2-0 | +181467 |
| 6standard | 168 | Morrill, Alex (1518) | Lost 0-2 | -171450 |
| top | average opponent: 1515record: 3-3 | new rating: 1450 | ||
| Grand Prix Boston 2003 (LGN limited) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 187 | Rubinfeld, Jason (1486) | Lost 0-2 | -181462 |
| 2sealed | 236 | Phetteplace, Anson (1482) | Lost 0-2 | -181444 |
| top | average opponent: 1484record: 0-2 | new rating: 1444 | ||
| Grand Prix Boston 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Cahalan, Dan (1500) | Won 2-0 | +181518 |
| 2sealed | 72 | Dunning, Laurie (1412) | Lost 0-2 | -201498 |
| 3sealed | 142 | Branstator, Nick (1500) | Draw 1-1 | 01498 |
| 4sealed | 186 | Mansur, Joanne (1481) | Lost 1-2 | -181480 |
| top | average opponent: 1473record: 1-2-1 | new rating: 1480 | ||