Catriona Matthew shot a 64 Friday to take a three-stroke lead after the second round of the Manulife Financial LPGA Classic in Waterloo, Ontario.Matthew’s 15-under 127 at the tournament’s midway point blew away her previous career-best 36-hole mark on tour by five strokes. First-round co-leader Angela Stanford, from TCU and Saginaw, shot a 67 and was second at 12 under, while Inbee Park, who is looking to win her fourth straight LPGA Tour event, had a 67 and was tied with three other players at 10-under.Ryann O’Toole (65), Anna Nordqvist (64) Belen Mozo (66), Chella Choi (65) and Meena Lee (66) were all 11 under. Park is trying to become the first golfer to win four straight LPGA tournaments since Lorena Ochoa in 2008. Johnson keeps shareDefending champion Zach Johnson, Lucas Glover and rookie Patrick Reed are tied for the lead following second-round play at the John Deere Classic in Silvis, Ill. Johnson shot a 5-under 66 to maintain a share of the lead. Reed shot a 63. J.J. Henry (65) of Fort Worth is three shots back, and Martin Flores (67), from Mansfield, is four back. Senior leader fires 63Michael Allen shot a 7-under 63 and broke away from the pack for a 5-stroke lead after the second round of the U.S. Senior Open in Omaha. Allen was among seven players who shared the first-round lead at 3-under. Allen’s 36-hole lead is the largest in the event’s 34-year history. Rocco Mediate, at 5-under, is his closest pursuer. Mediate finished with 14 straight pars while shooting a bogey-free 67. Jeff Sluman, who also shot 67, is at 4-under after missing an 8-foot par putt on the 18th.Kenny Perry, one of the first-day co-leaders, slipped to a 73 and is 10 shots out of the lead.Allen was short with his birdie putt on the last hole, ending his bid to match the U.S. Senior Open record of 62 by Loren Roberts at Prairie Dunes in 2006. Bid for 59 missedChad Collins missed a chance for the fourth 59 in Web.com Tour history, parring the final six holes for an 11-under 60 in the Utah Championship in Sandy.Collins, 34, missed a 15-foot uphill birdie putt on the par-4 ninth, his last hole in the second round. Collins, who shot 66 on Thursday, leads the tournament at 16 under, three shots ahead of Jamie Lovemark, who shot a 62. Hogan admirer leadsChris Doak, ranked No. 341, was the surprise leader after 36 holes of his home event after a second straight 66 left him at 12-under 132 and a stroke ahead in the Scottish Open in Inverness. He wore a signature flat cap in honor of his idol, Ben Hogan. Matthew Southgate (64) was in a tie for second place with Ross Fisher (65), Peter Uihlein (66) and JB Hansen (65) a stroke back.Ernie Els shot a 2-under 70 to miss the cut a week before he defends his British Open title. Phil Mickelson dropped back into a tie for 13th after a 70.