Winthrop, Joshua
Current rating: 1552
Record: 17-14-1
| Grand Prix Birmingham 2018 (leg) (legacy) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 349 | Davies, James (1410) | Won 2-1 | +161537 |
| 2legacy | 137 | Pakka, Esko (1720) | Lost 1-2 | -151522 |
| 3legacy | 439 | Accornero, Andrew (1500) | Won 2-0 | +181540 |
| 4legacy | 317 | Koerner Nau, Jonathan (1516) | Won 2-1 | +181558 |
| 5legacy | 220 | Salinger, Damien (1456) | Won 2-1 | +161574 |
| 6legacy | 144 | Marchbank, Lewis (1690) | Lost 1-2 | -161558 |
| 7legacy | 128 | Cinquin, Antoine (1419) | Lost 1-2 | -211537 |
| 8legacy | 210 | Scott, Alex (1339) | Won 2-0 | +151552 |
| top | average opponent: 1506record: 5-3 | new rating: 1552 | ||
| Grand Prix Birmingham 2017 (modern) | starting rating: 1548 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 214 | Galonska, Tom (1500) | Lost 1-2 | -191529 |
| 2modern | 526 | Harrison, James (1482) | Won 0-0 | +171546 |
| 3modern | 617 | Rickell, Edward (1423) | Won 2-1 | +161562 |
| 4modern | 265 | Bentley, James (1516) | Lost 1-2 | -191543 |
| 5modern | 544 | Downes, Benjamin (1469) | Lost 1-2 | -191524 |
| 6modern | 621 | Carrivick Gomez, Damien (1526) | Won 2-1 | +181542 |
| 7modern | 581 | Allen, Tim (1396) | Lost 0-2 | -211521 |
| top | average opponent: 1473record: 3-4 | new rating: 1521 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 887 | Nurdiansyach, Iman (1500) | Draw 1-1 | 01504 |
| 2sealed | 621 | Honeysett, Jack (1553) | Won 2-1 | +191523 |
| 3sealed | 535 | Lemos, Aaron (1520) | Won 2-0 | +181541 |
| 4sealed | 264 | Gillam, Catherine (1539) | Lost 1-2 | -181523 |
| 5sealed | 532 | Hauken, Kristian Magnus (1517) | Won 2-0 | +181541 |
| 6sealed | 326 | Li, Sean (1760) | Won 2-0 | +221563 |
| 7sealed | 196 | Curtis, Jacob (1555) | Won 2-0 | +181581 |
| 8sealed | 118 | Palmer, Luke (1479) | Lost 1-2 | -201561 |
| 9sealed | 244 | Baudys, Ondrej (1844) | Lost 1-2 | -131548 |
| top | average opponent: 1585record: 5-3-1 | new rating: 1548 | ||
| Grand Prix Manchester 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 335 | Newman, Stephen (1483) | Won 2-0 | +181518 |
| 2standard | 338 | Stone, Wade (1517) | Won 2-1 | +181536 |
| 3standard | 225 | Bell, Cameron (1536) | Won 2-1 | +181554 |
| 4standard | 81 | Menendez, Christian (1680) | Lost 0-2 | -161538 |
| 5standard | 260 | Martin, Daniel [ENG] (1483) | Lost 0-2 | -191519 |
| 6standard | 435 | Navarro Del Dujo, Carlos (1726) | Lost 0-2 | -141505 |
| 7standard | 468 | Jaccard, Yann-Guillaume (1531) | Won 2-1 | +181523 |
| 8standard | 412 | Sanchez, Diego (1475) | Lost 0-2 | -191504 |
| top | average opponent: 1554record: 4-4 | new rating: 1504 | ||