Tyrrell, Joseph W
Current rating: 1461
Record: 4-6
| Grand Prix London 2011 (MBS limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 298 | Verbraeken, Eric (1445) | Lost 1-2 | -191498 |
| 2sealed | 310 | Lei, Benjamin (1457) | Lost 0-2 | -191479 |
| 3sealed | 353 | Wooles, Bertie (1464) | Lost 1-2 | -181461 |
| average opponent: 1455record: 0-3 | new rating: 1461 | |||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 78 | Thearle, Roy (1411) | Won 2-0 | +161516 |
| 2sealed | 140 | Dunn, William (1463) | Lost 0-2 | -191497 |
| 3sealed | 179 | Masachs, Victor (1546) | Won 2-0 | +191516 |
| 4sealed | 249 | Nguyen, Tan-Tai (1459) | Won 2-0 | +171533 |
| 5sealed | 143 | Boyhan, Aaron (1538) | Won 2-1 | +181551 |
| 6sealed | 62 | Stroh, Kim (1660) | Lost 1-2 | -161535 |
| 7sealed | 94 | Linden, Mikael (1520) | Lost 0-2 | -181517 |
| average opponent: 1514record: 4-3 | new rating: 1517 | |||