Langer shot a 6-under 64 in the opening round at the Rock Barn Golf & Spa, as did Dick Mast and Anders Forsbrand.
Langer, twice a winner on the Champions Tour this year, is in second place in the Charles Schwab Cup points standings -- 609 points behind Perry.
Perry shot a 68 in the first round, leaving him in a tie for 21st place. Perry and Langer have been 1-2 in the standings for the past eight tournaments.
Exploding whale video goes viral on Internet
Puzzle-maker slips 'Murdoch Is Evil' into Rupert Murdoch's Sunday Telegraph