Out of all the hypothetical cross era matches, this would be my go to pick. Borg was my dad’s favorite player and the first match he ever showed me was the 1980 Wimby F. Fun fact, Borg’s speed and hair is partially where my username comes from
Peak for peak I think it goes 5 sets. Borg’s smaller frame and ridiculous conditioning program gives him the slight edge in endurance IMO, but RAFA’s superior firepower (particularly off the FH wing) gives him the edge in ending points. Whether that be through forcing errors or hitting winners I think that’d be the difference maker.
RAFA in 5 after 12 hours on court. Eat your hearts out Isner and Mahut