Johnson, Robert
Current rating: 1390
Record: 7-14-1
| Grand Prix Detroit 2013 (modern) | starting rating: 1474 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 359 | Droge, Kurtis (1634) | Lost 0-2 | -151459 |
| 2modern | 489 | Kretz, Joshua (1482) | Lost 0-0 | -181441 |
| 3modern | 593 | Vieira, Pedro (1463) | Lost 0-2 | -171424 |
| 4modern | 670 | Schohn, Ashley (1447) | Won 2-0 | +181442 |
| 5modern | 578 | Schatzman, Christopher (1488) | Lost 0-2 | -171425 |
| 6modern | 555 | Marion, Alan (1451) | Lost 0-2 | -171408 |
| 7modern | 480 | Musselman, Reuben (1426) | Lost 0-0 | -181390 |
| 8modern | 392 | Clarke, Derek (1409) | Draw 1-1 | 01390 |
| top | average opponent: 1475record: 1-6-1 | new rating: 1390 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 940 | Tyree, Michael (1500) | Lost 0-2 | -171447 |
| 2sealed | 1189 | Servellon, Remy (1482) | Won 2-0 | +181465 |
| 3sealed | 1054 | Darby, Zack (1500) | Won 2-0 | +191484 |
| 4sealed | 932 | Snyder, Eric (1709) | Lost 0-2 | -141470 |
| 5sealed | 947 | Rodriguez, Steven (1582) | Won 2-0 | +201490 |
| 6sealed | 852 | Berni, Roberto (1601) | Lost 1-2 | -161474 |
| top | average opponent: 1562record: 3-3 | new rating: 1474 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 82 | Moreind, David (1500) | Lost 1-2 | -181463 |
| 2standard | 376 | MacWilliam, Leo D (1482) | Won 2-0 | +181481 |
| 3standard | 210 | Olson, Daniel A (1482) | Lost 1-2 | -181463 |
| 4standard | 523 | Dill, Kevin (1482) | Won 2-1 | +191482 |
| 5standard | 297 | Thompson, Scott (1501) | Lost 0-2 | -181464 |
| top | average opponent: 1489record: 2-3 | new rating: 1464 | ||
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 184 | Larsen, Nick (1500) | Won 2-0 | +181518 |
| 2block | 101 | O'Rourke, Jason (1445) | Lost 0-2 | -191499 |
| 3block | 122 | Rowe, Barry (1500) | Lost 1-2 | -181481 |
| top | average opponent: 1482record: 1-2 | new rating: 1481 | ||