Lewis, Brock
Current rating: 1581
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 290 | Roberts, Jonathan (1341) | Won 2-1 | +141567 |
| 2modern | 61 | Beamish, Cody (1395) | Won 2-0 | +151582 |
| 3modern | 54 | Pollaski, Jackson (1537) | Lost 0-2 | -191563 |
| 4modern | 132 | Jacobs, Steven (1529) | Won 2-1 | +181581 |
| 5modern | 132 | Durshimer, Jake (1484) | Won 2-1 | +161597 |
| 6modern | 96 | Simon, Eric (1493) | Won 2-1 | +161613 |
| 7modern | 16 | Wolbers, Andrew (1853) | Lost 0-2 | -141599 |
| 8modern | 96 | Morantes, Simon (1587) | Lost 1-2 | -181581 |
| top | average opponent: 1527record: 5-3 | new rating: 1581 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 659 | Schreiner, Martin (1500) | Won 2-0 | +181522 |
| 2sealed | 453 | Briggs, Ryan (1518) | Lost 1-2 | -181504 |
| 3sealed | 515 | Tudor, Daniel (1448) | Won 2-1 | +171521 |
| 4sealed | 611 | Rugh, Stephen (1582) | Won 2-0 | +191540 |
| 5sealed | 158 | Johnson-Epstein, Jasper (1929) | Won 2-0 | +241564 |
| 6sealed | 194 | Hammonds, Aaron (1560) | Won 2-1 | +181582 |
| 7sealed | 123 | Pernankil, Avenash (1597) | Lost 0-2 | -171565 |
| 8sealed | 250 | Mondello, Jake (1943) | Lost 0-2 | -121553 |
| top | average opponent: 1635record: 5-3 | new rating: 1553 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 614 | Mackey, Leslee (1500) | Won 2-0 | +181518 |
| 2sealed | 525 | Hall, Kim (1518) | Lost 1-2 | -181500 |
| 3sealed | 436 | Mitat, Julian (1500) | Won 2-1 | +181518 |
| 4sealed | 303 | Brown, Max (1721) | Lost 0-0 | -141504 |
| top | average opponent: 1560record: 2-2 | new rating: 1504 | ||