3M Championship opening round ends with Mark Wiebe in lead

The first round of the 3M Championship is in the books. On a day ripe for good scoring it was adrenaline that took over.

Mark Wiebe, four days removed from winning the Senior British Open in a playoff at Royal Birkdale in Southport, England, shook off another restless night of sleep and leads the tournament after a round of 8-under-par 64 at TPC Twin Cities in Blaine.

He's the outright leader by a stroke over two-time major champion Kenny Perry and Corey Pavin. A group of five players sits at 6 under.

Even with a wind that picked up during the afternoon players kept pin-seeking all day. John Riegger, one of those at 6 under, carded a pair of eagles including a tap-in at 18 after a beautiful shot over the large pond.

"The greens are perfect," said Peter Senior, another player at 6 under who finished early in the day. "These are probably the best greens we've putted so far this year. We putt on good greens mainly but these are perfect speed. I think the guys will be really really happy with these."

Check back to startribune.com for more on the first round later this evening.

Further updates available on Twitter by following writer Brian Stensaas @stensation.