Chatham, Benjamin
Current rating: 1673
Record: 36-27
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 158 | Stensrud, Ethan (1505) | Won 2-0 | +171567 |
| 3standard | 16 | Reeves, Philip (1470) | Won 2-1 | +161583 |
| 4standard | 32 | Buntele, Michael (1538) | Won 2-0 | +171600 |
| 5standard | 5 | McGuire, Wayne (1546) | Won 2-0 | +171617 |
| 6standard | 26 | Harris, Dylan (1633) | Won 2-1 | +181635 |
| 7standard | 7 | Ostwalt, Levi (1727) | Lost 1-2 | -161619 |
| 8standard | 32 | Phillips, Cedric (1832) | Lost 1-2 | -141605 |
| 9standard | 166 | Mahon, Chance (1584) | Won 2-1 | +181623 |
| 10standard | 119 | Flickinger, Eric (1855) | Lost 1-2 | -141609 |
| 11standard | 157 | Jackson, Ryan (1399) | Won 2-1 | +141623 |
| 12standard | 143 | Lawson, Wade (1658) | Won 2-0 | +191642 |
| 13standard | 118 | Jacobson, Mark (2025) | Lost 0-2 | -121630 |
| 14standard | 144 | Watanabe, Yuuya (2111) | Won 2-1 | +261656 |
| 15standard | 126 | Gress, Robert (1584) | Won 2-1 | +171673 |
| top | average opponent: 1676record: 10-4 | new rating: 1673 | ||
| Grand Prix Atlanta 2018 (modern) | starting rating: 1590 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 46 | Carter, Grant (1517) | Lost 1-2 | -191571 |
| 3modern | 357 | Zelder, Aaron (1500) | Lost 0-2 | -191552 |
| 4modern | 552 | Oliver, Brett (1536) | Won 2-1 | +171569 |
| 5modern | 466 | Sperlunto, Ralph (1469) | Lost 0-2 | -191550 |
| top | average opponent: 1505record: 1-3 | new rating: 1550 | ||
| Grand Prix Atlanta 2016 (KLD limited) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 625 | Booth, Austin (1500) | Won 2-0 | +161613 |
| 2sealed | 730 | Graves, James (1518) | Won 2-0 | +161629 |
| 3sealed | 550 | Pressley, Logan (1652) | Lost 1-2 | -171612 |
| 4sealed | 857 | Johnson, Case (1685) | Won 2-0 | +191631 |
| 5sealed | 710 | Becker, Shawn (1655) | Lost 0-2 | -181613 |
| 6sealed | 854 | Green, Deven (1520) | Won 2-0 | +171630 |
| 7sealed | 760 | Smith, Travis (1528) | Lost 0-2 | -201610 |
| 8sealed | 834 | Karsten, James (1520) | Lost 1-2 | -201590 |
| top | average opponent: 1572record: 4-4 | new rating: 1590 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 521 | Norman, Shelly (1464) | Won 2-0 | +161570 |
| 2sealed | 246 | Yeem, Soohwang (1864) | Won 2-0 | +241594 |
| 3sealed | 292 | Pendergast, Thomas (1708) | Lost 0-2 | -161578 |
| 4sealed | 403 | Jordan, Callie (1455) | Won 2-0 | +161594 |
| 5sealed | 297 | League, Charles (1677) | Won 2-1 | +191613 |
| 6sealed | 196 | Dong, Cody (1581) | Lost 0-2 | -191594 |
| 7sealed | 351 | Reed, Wesley (1585) | Won 2-1 | +181612 |
| 8sealed | 213 | Morphis, James (1748) | Lost 1-2 | -151597 |
| top | average opponent: 1635record: 5-3 | new rating: 1597 | ||
| Grand Prix Atlanta 2011 (extended) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 160 | Bernal, Joseph (1584) | Lost 1-2 | -171523 |
| 2extended | 161 | Sokoloff, Anson (1482) | Won 2-0 | +171540 |
| 3extended | 161 | O'Brien, Matt (1500) | Won 2-1 | +171557 |
| 4extended | 182 | Lear, Tanner (1520) | Won 2-0 | +171574 |
| 5extended | 102 | Edwards, Kenneth R (1598) | Lost 0-2 | -171557 |
| 6extended | 139 | Cembor, Brad (1518) | Won 2-0 | +171574 |
| 7extended | 98 | Coggins, Nichol M (1467) | Lost 0-2 | -201554 |
| top | average opponent: 1524record: 4-3 | new rating: 1554 | ||
| Grand Prix Seattle 2009 (ARB standard) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 230 | Carr, Aaron (1518) | Lost 1-2 | -191543 |
| 3standard | 277 | Bains, Suraj (1500) | Won 2-1 | +171560 |
| 4standard | 323 | Ramos, Nathan Z (1517) | Lost 1-2 | -191541 |
| 5standard | 278 | Gray, Johnny (1502) | Won 2-1 | +171558 |
| 6standard | 321 | Barton, Aaron (1516) | Lost 0-2 | -181540 |
| top | average opponent: 1511record: 2-3 | new rating: 1540 | ||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1601 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Stowe, Patrick (1500) | Lost 1-2 | -201581 |
| 2sealed | 211 | Smith, Connor (1518) | Lost 0-2 | -191562 |
| top | average opponent: 1509record: 0-2 | new rating: 1562 | ||
| Grand Prix Charlotte 2005 (extended) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 63 | Davis, John-Marrin (1500) | Won 2-0 | +181535 |
| 2extended | 83 | LaRose, Justin (1557) | Won 2-0 | +181553 |
| 3extended | 57 | Honigmann, Scott (1487) | Won 2-0 | +171570 |
| 4extended | 32 | Walls, Gabe (1796) | Won 2-1 | +221592 |
| 5extended | 14 | Dyke, Jim (1736) | Lost 0-2 | -151577 |
| 6extended | 38 | Lepinski, Christopher (1682) | Won 2-1 | +201597 |
| 7extended | 14 | Lieberman, Alex (1889) | Lost 1-2 | -131584 |
| 8extended | 33 | McNeely, Zach (1508) | Won 2-0 | +171601 |
| top | average opponent: 1644record: 6-2 | new rating: 1601 | ||
| Grand Prix Atlanta 2003 (8ED standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Ethimgton, Brian (1500) | Won 2-0 | +181518 |
| 2standard | 90 | Bowles, Richard (1477) | Lost 1-2 | -191499 |
| 3standard | 179 | Wilder, Greg (1500) | Lost 1-2 | -181481 |
| 4standard | 208 | McGill, Clint (1482) | Lost 1-2 | -181463 |
| 5standard | 209 | Waters, Joshua (1463) | Won 2-0 | +181481 |
| 6standard | 171 | Sandbach, Robert (1482) | Won 2-0 | +181499 |
| 7standard | 123 | Butler, Zach (1501) | Won 2-1 | +181517 |
| top | average opponent: 1486record: 4-3 | new rating: 1517 | ||