Barrett, Kenneth
Current rating: 1461
Record: 9-13
| Grand Prix Birmingham 2017 (modern) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 169 | Cowderoy, Paul (1496) | Won 2-0 | +191490 |
| 2modern | 96 | Maisonneuve, Erwan (1736) | Lost 0-0 | -141476 |
| 3modern | 604 | Klimczak, Oliver (1501) | Won 2-1 | +181494 |
| 4modern | 400 | Leahy, George (1642) | Lost 1-2 | -151479 |
| 5modern | 475 | Capizzi, Guillaume (1411) | Won 2-0 | +171496 |
| 6modern | 445 | Wilson, Steven (1520) | Lost 1-2 | -181478 |
| 7modern | 439 | Hatton, Zachary (1502) | Lost 1-2 | -171461 |
| top | average opponent: 1544record: 3-4 | new rating: 1461 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 529 | Smith, Becky (1481) | Lost 1-2 | -181490 |
| 2sealed | 742 | Moonens, Koen (1442) | Lost 1-2 | -191471 |
| top | average opponent: 1461record: 0-2 | new rating: 1471 | ||
| Grand Prix London 2013 (GTC limited) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 650 | Breakwell, Daniel (1500) | Won 2-1 | +191446 |
| 2sealed | 393 | Dobson, Tony (1495) | Won 2-1 | +191465 |
| 3sealed | 166 | Orsini Jones, Marco (1773) | Won 2-0 | +241489 |
| 4sealed | 860 | Calzolari, Lorenzo (1745) | Lost 0-2 | -141475 |
| 5sealed | 236 | Rickell, Mark (1497) | Won 2-1 | +191494 |
| 6sealed | 107 | Kopfli, Hugo (1745) | Won 2-0 | +221516 |
| 7sealed | 39 | Carpentier, Jonas (1541) | Lost 0-2 | -171499 |
| 8sealed | 230 | Coelho, Helder (1855) | Won 2-0 | +241523 |
| 9sealed | 116 | Coline, Mickael (1723) | Lost 0-2 | -151508 |
| top | average opponent: 1653record: 6-3 | new rating: 1508 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 204 | Jackson, Michael S (1500) | Lost 0-2 | -181482 |
| 2standard | 395 | Inetti, Roberto (1481) | Lost 0-2 | -181464 |
| 3standard | 502 | Martin, Shawna (1464) | Lost 1-2 | -181446 |
| 4standard | 556 | Melter, Joshua (1396) | Lost 0-2 | -191427 |
| top | average opponent: 1460record: 0-4 | new rating: 1427 | ||