I think people are vastly overestimating how many balls you could hit in a day. There is no way you could stand there hitting a ball every 12 seconds for 12 hours.
Anyway, even at 200 balls a day, to say 120 yards Par 3, 60% hitting the green. That's 3600 balls on the green. Imagine placing those such that none were in the hole? Odds definitely in your favour, especially if you could pick the pin position. Still not sure Id take the bet though!