Medina, Arturo
Current rating: 1531
Record: 8-7
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 239 | Baskette, Matthew (1534) | Won 2-1 | +191519 |
| 4sealed | 166 | Demestrio, Joe (1771) | Lost 1-2 | -141505 |
| 5sealed | 115 | Priputin, Tory (1544) | Won 2-0 | +191524 |
| 6sealed | 66 | Betts, Jonathan (1706) | Won 2-0 | +211545 |
| 7sealed | 68 | Throop, Adrian (1576) | Won 2-0 | +191564 |
| 8sealed | 53 | Laughlin, Pierson (1700) | Lost 0-2 | -161548 |
| 9sealed | 130 | Cole, Anthony (1576) | Lost 1-2 | -171531 |
| average opponent: 1630record: 4-3 | new rating: 1531 | |||
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 145 | Gomez, Manuel (1500) | Lost 0-2 | -181482 |
| 2sealed | 217 | Buez Delgado, Joaquin E. (1482) | Won 2-0 | +181500 |
| 3sealed | 183 | Ismael Vargas, Fong (1518) | Won 2-0 | +181518 |
| 4sealed | 138 | Alvarez, Rafael [MEX] (1519) | Won 2-1 | +181536 |
| 5sealed | 64 | Lemus, Renato (1535) | Lost 0-2 | -181518 |
| 6sealed | 108 | Lugo, David (1518) | Lost 0-2 | -181500 |
| 7sealed | 176 | NAVA, JUAN (1500) | Lost 1-2 | -181482 |
| 8sealed | 175 | Trejo Moreno, Marco Antonio (1482) | Won 2-1 | +181500 |
| average opponent: 1507record: 4-4 | new rating: 1500 | |||