Varnum, John
Current rating: 1541
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 414 | Dunn, Kaleb (1467) | Won 2-1 | +171570 |
| 2standard | 34 | Gorz, Philip (1499) | Lost 0-2 | -201550 |
| 3standard | 310 | Timm, Mark (1483) | Won 2-0 | +171567 |
| 4standard | 152 | Taylor, Robert (1419) | Lost 1-2 | -201547 |
| 5standard | 379 | Kelly, Ryne (1497) | Won 2-1 | +171564 |
| 6standard | 196 | Bell, Jeffrey (1483) | Lost 0-2 | -201544 |
| 7standard | 351 | Grant, Phillip (1434) | Won 2-1 | +161560 |
| 8standard | 286 | Schmidt, Travis (1499) | Lost 1-2 | -191541 |
| top | average opponent: 1473record: 4-4 | new rating: 1541 | ||
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 230 | Gunnin, Logan (1537) | Draw 1-1 | 01516 |
| 4standard | 151 | Richardson, Michael (1513) | Won 2-0 | +181534 |
| 5standard | 69 | Quinn, Serena (1511) | Won 2-0 | +181552 |
| 6standard | 35 | Sparks, Colin (1550) | Lost 1-2 | -181534 |
| 7standard | 107 | Villasmil, Ricardo R (1564) | Won 2-0 | +181552 |
| 8standard | 65 | Hollister, Adam (1595) | Lost 1-2 | -171535 |
| 9standard | 126 | Arango, Javier (1551) | Won 2-1 | +181553 |
| top | average opponent: 1546record: 4-2-1 | new rating: 1553 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 934 | Edwards, Robert (1500) | Won 2-1 | +181518 |
| 2sealed | 951 | Krupski, Jared (1504) | Lost 1-2 | -181500 |
| 3sealed | 1110 | Logan, Tyler (1500) | Won 2-1 | +181518 |
| 4sealed | 980 | Cerino, Matthew (1553) | Won 2-1 | +181536 |
| 5sealed | 927 | Goss, Jon (1469) | Won 2-0 | +171553 |
| 6sealed | 797 | Morrison, Matthew (1504) | Lost 1-2 | -191534 |
| 7sealed | 796 | Deputy, C.J. (1514) | Lost 1-2 | -181516 |
| top | average opponent: 1506record: 4-3 | new rating: 1516 | ||