Peterson, John
Current rating: 1398
Record: 7-14-1
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1393 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 104 | Lepik, Michael (1500) | Draw 1-1 | +21395 |
| 2sealed | 443 | Lai, Trung (1500) | Lost 0-2 | -161379 |
| 3sealed | 772 | Hudgins, Jeremiah (1485) | Won 2-0 | +191398 |
| top | average opponent: 1495record: 1-1-1 | new rating: 1398 | ||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 427 | Wang, Dennis (1500) | Lost 0-2 | -171416 |
| 2standard | 555 | Shankin, Luke (1429) | Won 2-0 | +181434 |
| 3standard | 581 | Carrig, Nicholas (1500) | Lost 0-2 | -171417 |
| 4standard | 686 | Grummel, Kristian (1486) | Lost 1-2 | -171400 |
| 5standard | 787 | McClanahan, Ryan (1448) | Won 2-1 | +191419 |
| 6standard | 584 | Weidman, Joshua (1482) | Won 2-0 | +191438 |
| 7standard | 426 | McNelly, Marc (1540) | Lost 1-2 | -161422 |
| 8standard | 531 | Gribbins, Edward (1491) | Lost 1-2 | -161406 |
| 9standard | 474 | Taylor, Jason (1696) | Lost 0-2 | -131393 |
| top | average opponent: 1508record: 3-6 | new rating: 1393 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1086 | Sturm, Daniel (1500) | Lost 0-2 | -181468 |
| 2sealed | 1221 | Malone, Paul (1482) | Won 2-0 | +181486 |
| 3sealed | 1259 | Jalalian, Aurash (1500) | Lost 1-2 | -171469 |
| 4sealed | 1266 | Meyer, Katherine (1447) | Lost 1-2 | -191450 |
| 5sealed | 1252 | Craciunescu, Cosmin (1464) | Lost 0-1 | -171433 |
| top | average opponent: 1479record: 1-4 | new rating: 1433 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 318 | Lew, Michael (1535) | Won 2-0 | +191519 |
| 3sealed | 59 | Ignacio, Kenny (1563) | Lost 0-2 | -181501 |
| 4sealed | 173 | Janz, Carl (1622) | Lost 1-2 | -151486 |
| 5sealed | 292 | Sullivan, Kyle (1484) | Won 2-1 | +181504 |
| 6sealed | 329 | Palke, Darrel (1519) | Lost 0-2 | -181486 |
| top | average opponent: 1545record: 2-3 | new rating: 1486 | ||