WALTON ON THE HILL, England (AP) - Mark Calcavecchia surrendered a three-shot cushion to finish the third round of the Senior British Open on Saturday tied for the lead with fellow American Russ Cochran.
Calcavecchia, the overnight co-leader, was in cruise control at 10 under with six holes remaining but made a triple-bogey 7 at No. 13 after driving into the heather and then dropped another shot on No. 16.
A birdie at the final hole left the 1989 British Open champion at 7 under. Frost shot a bogey-free 66 - tied for the week's best round - and Cochran had a 67. Corey Pavin and Barry Lane each shot a 69 and are a shot back of the leaders, with three more Americans - Chip Beck, Mike Goodes and Lee Rinker - at 5 under.
The victory is Cochran's third while competing on the Champions tour.
(Copyright 2011 by The Associated Press. All Rights Reserved.) Cochran and South Africa's David Frost.