First round in Miami at the ATP Masters 1000 saw Ivan Dodig retire at 5-0 in the final set. Juan Monaco had turned this match around midway through the second set. After winning the second set, he continued his strong play in the third. Dodig was fading away but did not appear to be visibly hampered by any injury. When the deficit was truly insurmountable at 5-0 in the third, the Croat did not bother to let Monaco serve for the match and instead shook the umpires hand and left the court.
In case you had bet with sites that void match bets in such instance, you might be very disappointed if you were on Monaco. In order to be profitable at tennis betting, knowledge of settlement rules is paramount.