Definitions for outdistanceˌaʊtˈdɪs təns
Random House Webster's College Dictionary
out•dis•tanceˌaʊtˈdɪs təns(v.t.)-tanced, -tanc•ing.
to leave behind, as in running.
Origin of outdistance:
outdistance, outstrip, distance(verb)
go far ahead of
"He outdistanced the other runners"
To run further or faster than another, or to finish a race with a large margin.