It is run over a distance of 1 mile , 4 furlongs and 63 yards ( 2,472 metres ) at Chester in May .
The Chester Vase is a Group 3 flat horse race in Great Britain open to three - year - old colts and geldings .
Chester Vase is run over a distance of 1 mile , 4 furlongs and 63 yards ( 2,472 metres ) at Chester in May .
The Chester Vase is a Group 3 flat horse race in Great Britain open to three - year - old colts and geldings .