From the PGA Tour:
Rookie J.B. Holmes set a new one-tournament record for Driving Distance at last week's WGC-Bridgestone Invitational with a 350-yard average off the tee. The old mark was 347.3 by Scott Hend at the 2005 Bank of America Colonial. His eight measured drives were 307-405-338-413-321-364-272 and 380 yards. Holmes finished in a T50.
Imagine what would happen if he actually worked out!