Calc's 64 nets Players co-lead with Daley PITTSBURGH, June 30 (UPI) -- Mark Calcavecchia's 6-under 64 Saturday enabled him to join Joe Daley atop the leaderboard after three rounds of the Senior Players Championship. Calcavecchia's performance at Fox Chapel Golf Club netted him a share of the top spot at 12-under 198. Daley fired a 2-under 68 Saturday. Second-round leader and defending champion Fred Couples, dealing with a sore back, fell into a share of third place after carding an even-par 70. Also in third at minus-11 was Tom Lehman, who registered a 4-under 66.