Davidson, Joseph
Current rating: 1428
Record: 10-15
| Grand Prix Las Vegas 2019 (modern) (modern) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 289 | Morris, Vasili (1461) | Lost 0-2 | -181429 |
| 2modern | 431 | Munoz, Richard (1366) | Lost 1-2 | -191410 |
| 3modern | 747 | Price, Trent (1464) | Won 2-1 | +191429 |
| 4modern | 646 | Bartlett, Andrew (1450) | Won 2-0 | +181447 |
| 5modern | 505 | Meadors, Dan (1403) | Lost 1-2 | -191428 |
| top | average opponent: 1429record: 2-3 | new rating: 1428 | ||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2 | Anderson, Luke (1489) | Lost 0-2 | -171414 |
| 2modern | 974 | Hatchett, Isaac (1481) | Won 2-0 | +201434 |
| 3modern | 799 | Willson, Jacob (1478) | Won 2-1 | +181452 |
| 4modern | 316 | Yam, Philip (1780) | Lost 0-2 | -121440 |
| 5modern | 1362 | Bird, Jonathan (1516) | Won 2-1 | +201460 |
| 6modern | 491 | Housman, Myles (1658) | Won 2-1 | +211481 |
| 7modern | 433 | Campbell, Chantelle (1632) | Lost 1-2 | -151466 |
| 8modern | 335 | Lewark, Trevor (1396) | Lost 1-2 | -191447 |
| top | average opponent: 1554record: 4-4 | new rating: 1447 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Nelson, Daniel (1481) | Lost 1-2 | -181448 |
| 2sealed | 307 | Aharon, Tal (1483) | Lost 0-2 | -171431 |
| 3sealed | 496 | Gonzalez, Alejandro (1429) | Won 2-0 | +181449 |
| 4sealed | 382 | Imboden, Dalton (1481) | Lost 0-2 | -181431 |
| top | average opponent: 1468record: 1-3 | new rating: 1431 | ||
| Grand Prix Portland 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 249 | Treber, Ryan (1500) | Lost 0-2 | -181482 |
| 2modern | 278 | Merchant, Sameer (1607) | Lost 1-2 | -161466 |
| 3modern | 349 | Otteson, Ben (1464) | Won 2-1 | +181484 |
| 4modern | 401 | Slutsker, Sasha (1481) | Won 2-1 | +181502 |
| 5modern | 305 | Lillard, Daniel (1500) | Lost 1-2 | -181484 |
| 6modern | 326 | Gipson, Jordan (1483) | Lost 1-2 | -181466 |
| 7modern | 302 | Sypal-Kohout, Jonathan (1439) | Won 2-0 | +181484 |
| 8modern | 220 | Cressy, Brandon (1501) | Lost 1-2 | -181466 |
| top | average opponent: 1497record: 3-5 | new rating: 1466 | ||