McMahan, Lea
Current rating: 1423
Record: 3-8
| Grand Prix London 2019 (WAR sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 72 | Repa, Tamas (1505) | Lost 0-2 | -181482 |
| A2sealed | 202 | Jud, Thomas (1318) | Won 2-1 | +151497 |
| A3sealed | 104 | Bornelov, Susanne (1796) | Lost 0-2 | -131484 |
| A4sealed | 184 | Magalhaes, Hugo (1565) | Won 2-0 | +201504 |
| A5sealed | 129 | Buckland, Sam (1579) | Lost 0-2 | -171487 |
| C1sealed | 131 | Norgaard, Lasse (1788) | Lost 0-2 | -121475 |
| C2sealed | 289 | Lim, Sean (1367) | Won 2-0 | +161491 |
| C3sealed | 258 | Picardi, Antonio (1450) | Lost 0-2 | -191472 |
| C4sealed | 262 | Doherty, Shawn (1640) | Lost 1-2 | -151457 |
| C5sealed | 211 | Kangas, Seppo (1407) | Lost 1-2 | -191438 |
| C6sealed | 170 | Takano, Hayato (1599) | Lost 0-2 | -151423 |
| average opponent: 1547record: 3-8 | new rating: 1423 | |||