Leighton, Joseph
Current rating: 1571
| Grand Prix Montreal 2017 (AKH standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 2035 | Hu, Lance (1500) | Lost 0-2 | -191534 |
| 2standard | 2248 | Malott, Jaden (1482) | Won 2-0 | +171551 |
| 3standard | 2247 | Latendresse, Michel (1518) | Lost 0-2 | -181533 |
| 4standard | 2350 | Rumble, Mike (1463) | Won 2-1 | +171550 |
| 5standard | 2249 | Hudson, Paul (1505) | Won 2-1 | +171567 |
| 6standard | 2154 | Naide, Kazutaka (1705) | Lost 0-2 | -161551 |
| 7standard | 2276 | Lee, Jeffrey (1476) | Won 2-0 | +171568 |
| 8standard | 2200 | Beaulieu, Keven (1433) | Won 2-0 | +151583 |
| 9standard | 2107 | Mines, David (1902) | Lost 0-2 | -121571 |
| top | average opponent: 1554record: 5-4 | new rating: 1571 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 276 | Morey, Tyler (1636) | Won 2-0 | +201574 |
| 2standard | 38 | Pratt, Phil (1487) | Lost 0-2 | -201554 |
| 3standard | 786 | Ford, Keith (1504) | Won 2-0 | +171571 |
| 4standard | 620 | Somers, Stu (1718) | Lost 0-2 | -151556 |
| 5standard | 676 | Franco Blanco, Alvaro (1440) | Draw 1-1 | -21554 |
| 6standard | 629 | Rodriguez, Miles (1564) | Lost 0-2 | -181536 |
| 7standard | 661 | Aldrich, Joshua (1500) | Won 2-0 | +171553 |
| top | average opponent: 1550record: 3-3-1 | new rating: 1553 | ||
| Grand Prix Providence 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 163 | Bird, Matt (1500) | Lost 0-2 | -181482 |
| 2standard | 339 | DiMascio, Jared (1483) | Won 2-0 | +181500 |
| 3standard | 245 | Dunleavey, Michael (1525) | Won 2-1 | +181518 |
| 4standard | 322 | Medeiros, Max (1517) | Lost 0-2 | -181500 |
| 5standard | 322 | Snyder, Derek (1514) | Won 2-1 | +191519 |
| 6standard | 282 | Kastning, Erik (1411) | Won 2-1 | +161535 |
| 7standard | 173 | Hirmiz, Fadi (1500) | Won 2-1 | +171552 |
| 8standard | 150 | Jansen, Olivier (1567) | Won 2-1 | +181570 |
| 9standard | 63 | Stein, Mathew (1677) | Lost 0-0 | -161554 |
| top | average opponent: 1521record: 6-3 | new rating: 1554 | ||