Ceballos, Stefan
Current rating: 1556
| Grand Prix Atlanta 2014 (JOU limited) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 470 | Schultz, Kenneth (1519) | Won 2-0 | +161620 |
| 3sealed | 430 | Grigsby, Kevin (1411) | Lost 1-2 | -221598 |
| 4sealed | 490 | Ferrell, Joseph (1522) | Lost 0-2 | -191579 |
| 5sealed | 533 | Willingham, Holden (1500) | Won 2-0 | +171596 |
| 6sealed | 492 | Martin, Jacob (1477) | Lost 0-2 | -211575 |
| 7sealed | 516 | Krangel, Eric (1497) | Lost 0-2 | -191556 |
| top | average opponent: 1488record: 2-4 | new rating: 1556 | ||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 26 | Mandarino, Patrick (1482) | Won 2-1 | +161574 |
| 3standard | 69 | White, Daniel (1455) | Won 2-0 | +161590 |
| 4standard | 92 | Damo da Rosa, Paulo Vitor (1948) | Won 2-1 | +251615 |
| 5standard | 42 | Sittner, Alex (1991) | Lost 0-2 | -121603 |
| 6standard | 134 | Tobey, Jacob (1595) | Won 2-0 | +181621 |
| 7standard | 105 | Jacobson, Mark (1711) | Won 2-1 | +201641 |
| 8standard | 64 | Macurda, Art (1668) | Lost 0-2 | -181623 |
| 9standard | 114 | Valdez, John (1549) | Lost 0-2 | -191604 |
| top | average opponent: 1675record: 5-3 | new rating: 1604 | ||
| Grand Prix Albuquerque 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 144 | Burrows, Raja (1508) | Lost 1-2 | -181482 |
| 2standard | 307 | Lujan, Chris (1482) | Won 2-0 | +181500 |
| 3standard | 372 | Jones, Jasmine (1500) | Won 2-0 | +181518 |
| 4standard | 333 | Boedder, Gene (1555) | Won 2-1 | +191537 |
| 5standard | 178 | Johnson, Jeffery (1534) | Won 2-0 | +181555 |
| 6standard | 164 | Lin, Le (1579) | Won 2-1 | +181573 |
| 7standard | 141 | Weeden, Eric (1761) | Lost 0-2 | -141559 |
| 8standard | 156 | Castro, Christian (1519) | Lost 0-2 | -191540 |
| 9standard | 212 | Palma, William (1539) | Won 2-0 | +181558 |
| top | average opponent: 1553record: 6-3 | new rating: 1558 | ||