Koch, John
Current rating: 1446
Record: 2-5
| Grand Prix Valencia 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 146 | Wojtyczka, Adrian (1500) | Won 2-1 | +181518 |
| 2sealed | 83 | Napadensky, Andres (1518) | Lost 1-2 | -181500 |
| 3sealed | 269 | Martinez Delgado, Rodr (1500) | Lost 0-2 | -181482 |
| 4sealed | 474 | Val, Jonatan (1451) | Lost 1-2 | -191463 |
| 5sealed | 421 | Sifres, Ruben (1464) | Won 2-0 | +181481 |
| 6sealed | 379 | Ramiro Cano, Adrian (1464) | Lost 0-2 | -181463 |
| 7sealed | 379 | Peixoto, Jose (1497) | Lost 1-2 | -171446 |
| average opponent: 1485record: 2-5 | new rating: 1446 | |||