medley relay
noun
1.
Track.
a relay race in which individual members of a team usually run an unequal portion of the total distance.
Compare
distance medley
,
sprint medley
.
2.
Swimming.
a relay race in which no member of a team uses the same stroke as another.
Compare
individual medley
.
Origin
1945-50
Examples from the web for
medley relay
Swimmers may not swim more than one freestyle relay and one
medley relay
.