The Irish golfer leads alongside Australian Mark Hensby

Harrington won this tournament in 2022.

COLORADO SPRINGS, Colo. (AP) — Padraig Harrington made four birdies Thursday, though it was the bogey he saved after losing a tee shot deep in a thicket of trees on the 15th hole that helped him keep a share of the first-round lead with Mark Hensby at the U.S. Senior Open. The leaders shot 3-under 67 for a one-shot edge over a group of six, including Stewart Cink, who hit the first 17 greens before making bogey after coming up short on No. 18.Calgary's Stephen Ames was at 2-over 72 and Dave Bunker of Brampton, Ont., was at 7-over 77. Mike Weir of Bright's Grove, Ont., was at 8-over 78.Harrington, the 2022 U.S. Senior champion, made all four birdies on the (easier) front nine at the Broadmoor and was leading by one when he snapped his tee shot on the par-4 15th deep into the woods. The Irishman took a cart back to the tee box for his third shot, then hit that into the right rough. His approach to 20 feet and the ensuing make limited the damage and he made three pars on the way in to stay atop the leaderboard.…