Interesting topic. Borg could be a beast even on the practice court. Just ask Mats Wilander who famously declared that he "couldn't even get a set" off of Borg when they practiced before Wilander went on to win the 1982 French Open, while Borg was absent (he would have had to qualify for the FO that year!). But outside of practice, he really got serious. I'm counting 105 bagel sets
for Borg in his official ATP matches here!
I wonder what the numbers are for others like Nadal, Djokovic, Sampras, Connors, McEnroe, etc?
Borg also holds the record in the open era for fewest number of games allowed at a major with 32 at the 1978 French Open. He is also the only player to have won Wimbledon without losing a set in the open era.