Villagrana Colin, Carlos Gustavo
Current rating: 1424
Record: 5-10-1
| Grand Prix Mexico City 2018 (GRN limited) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Boone, Allan (1634) | Lost 0-2 | -141392 |
| 2sealed | 133 | Garcia Luna Perez, Luis Manuel (1452) | Won 2-1 | +191411 |
| 3sealed | 149 | Barzola, Juan Pablo (1605) | Lost 0-2 | -141397 |
| 4sealed | 168 | Pratz Moreno, Juan Salvador (1528) | Lost 0-2 | -161381 |
| 5sealed | 167 | Arellano, Gerardo (1461) | Won 2-0 | +201401 |
| 6sealed | 128 | Zepeda Mendez, Carlos Alberto (1545) | Won 2-1 | +201421 |
| 7sealed | 95 | Balderas Ruiz, Jose Luis (1520) | Won 2-0 | +201441 |
| 8sealed | 76 | Amaya Avila, Juan Alberto (1496) | Lost 1-2 | -171424 |
| average opponent: 1530record: 4-4 | new rating: 1424 | |||
| Grand Prix Mexico City 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 202 | Ramirez Chavez, Juan Carlos (1413) | Won 2-0 | +161516 |
| 2sealed | 76 | Neumann Ybarra, Ludwig (1518) | Lost 0-2 | -181498 |
| 3sealed | 281 | Escamilla Bravo, Cesar Adalberto (1527) | Lost 0-2 | -171481 |
| 4sealed | 290 | Moya Silva, Sergio Noe (1496) | Lost 0-2 | -181463 |
| 5sealed | 319 | Garcia Arcega, Guillermo (1415) | Draw 1-1 | -11462 |
| 6sealed | 316 | Narvaez Hurtado, Jose (1391) | Lost 1-2 | -191443 |
| 7sealed | 309 | Ortiz Ramos, Angelica (1448) | Lost 0-2 | -181425 |
| 8sealed | 276 | Rivera Prado, Alejandro (1364) | Lost 0-2 | -191406 |
| average opponent: 1447record: 1-6-1 | new rating: 1406 | |||