Langer, the 2010 US Senior Open Champion, has opened up a four shot lead over Tom Pernice Jnr, Corey Pavin, Roger Chapman, Tom Lehman and John Huston.
Langer stormed home in 31 to establish his significant lead and looks well placed to win his 15th Champions Tour title.
Langer, though, feels it should have been more.
"Well, without being big headed, I think I'm one of the better players out here the last three or four years. I've won the money list. I've won the Schwab Cup. If you do that, you've got to play well. If you can win normal tournaments and be in the top five or top ten on a regular basis, you ought to be doing fairly well in the majors too because the majors are even harder.
"The better players, I think, will separate themselves even more from the average player in the majors because conditions are usually tougher. But I still think I could and should have done better in the majors. When I look back, I wish I'd won four or five, but I haven't yet. I'm working on it because time is short."
Peter Senior added a third round of 66 to move into a share of 17th position while Peter Fowler also added a round of 66 to be in 19th position.
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