McMahan, Ryan
Current rating: 1515
Record: 6-6-1
| Grand Prix Houston 2018 (RIX limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 262 | McMillion, James (1421) | Lost 0-2 | -201488 |
| 2sealed | 270 | Van Horn, Joshua (1482) | Won 2-0 | +181506 |
| 3sealed | 206 | Edelson, Adam (1641) | Won 2-1 | +201526 |
| 4sealed | 168 | Austin, Lance (1702) | Lost 0-2 | -141512 |
| 5sealed | 226 | Becerril, Jose (1502) | Won 2-0 | +171529 |
| 6sealed | 190 | Detiveaux, Raymond (1713) | Lost 1-2 | -141515 |
| average opponent: 1577record: 3-3 | new rating: 1515 | |||
| Grand Prix Richmond 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Burns, Daniel (1500) | Draw 1-1 | 01500 |
| 2sealed | 140 | Mickle, Sara (1500) | Won 1-0 | +181518 |
| 3sealed | 92 | Williams, Andrew (1501) | Won 2-0 | +181536 |
| 4sealed | 72 | Ferneyhough, Michael (1475) | Won 2-1 | +171553 |
| 5sealed | 35 | Tsumura, Kenji (2119) | Lost 1-2 | -91544 |
| 6sealed | 77 | Conner, David (1538) | Lost 0-2 | -181526 |
| 7sealed | 100 | Franklin, Matthew Q (1515) | Lost 0-2 | -181508 |
| average opponent: 1593record: 3-3-1 | new rating: 1508 | |||