Originally Posted by WyveN
the other 6 hour DC Mac match was in the early 80s against Wilander. Can't remmember the year - so the answer would be Wilander or Becker I would think
Yes, you have the participants for one, but there was someone else besides Mac that played in two of them.
Once you guess that one correctly, then find out the common theme of both of these matches.
Actually they were not all snorefests.