Double Occupancy on Base

[T.J.]

When two base runners find themselves occupying the same base, is the trailing runner instantly out? Or does a tag have to be made?

Thanks.

T

 

[MT 73]

When two base runners find themselves occupying the same base, is the trailing runner instantly out? Or does a tag have to be made?

Thanks.

T

Tag has to be made--although on a force play it would be the lead runner who is called out.
When I coach I tell my players to tag them both and let the umpires decide which one to call out.