Hello crossword solvers! Today let's find the answer to the clue Extreme rarity on a par-4 hole from the USA Today crossword. After we've gathered any other hints from the USA Today crossword puzzle and all possible helpful and relevant information from other sources, we are ready to solve the clue Extreme rarity on a par-4 hole. The answer we found for the clue Extreme rarity on a par-4 hole is: