One which finds several horses finishing very close together at the wire.
When horses finish a race packed together, itâ€(tm)s called a blanket finish.
One which finds several horses finishing noses and heads apart or so closely grouped that they could be covered by a blanket in a figurative sense.
Horses finishing so closely in a race that they could be covered by a “blanket.
When the horses finish so close for the win you could theoretically put a single blanket across them
Horses finishing so closely together they could be covered by a blanket; difficult to determine the order of finish.