Cubillo, Stayner
Current rating: 1487
Record: 6-7
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 34 | Diaz Hidalgo, Diego (1500) | Lost 1-2 | -181501 |
| 2standard | 145 | Esquivel Oviedo, Oscar (1481) | Won 2-0 | +181519 |
| 3standard | 184 | Gerlock, Alex (1783) | Lost 0-2 | -141505 |
| 4standard | 176 | Piedra, Arturo (1482) | Won 2-0 | +181523 |
| 5standard | 179 | Mendez, Pablo [CRI] (1493) | Lost 0-2 | -191504 |
| 6standard | 168 | Meza, Daniel (1522) | Lost 1-2 | -171487 |
| average opponent: 1544record: 2-4 | new rating: 1487 | |||
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 121 | Sanchez Romero, Jose D (1500) | Won 2-0 | +181518 |
| 3sealed | 15 | Corrales, Jose Manuel (1518) | Lost 0-2 | -181500 |
| 4sealed | 85 | Harvey, Claude (1535) | Lost 1-2 | -171483 |
| 5sealed | 79 | Vega, Diego (1517) | Won 2-1 | +181501 |
| 6sealed | 65 | Ortiz, Oliver (1501) | Lost 1-2 | -181483 |
| 7sealed | 97 | Brenes Rojas, Marco (1483) | Won 2-0 | +181501 |
| 8sealed | 80 | Mora, Diego (1510) | Won 2-1 | +181519 |
| average opponent: 1509record: 4-3 | new rating: 1519 | |||