Troy Matteson opened today’s second round with a three-shot advantage, pushed it to five after opening with two birdies, and still holds a four-shot lead after nine holes. Matteson, who carded a 10-under 61 to take the lead Thursday, got his morning started with birdie putts of 11 feet and 3 feet on Nos. 1 and 2 before missing a 4-footer on the third hole to start a stretch of seven consecutive pars. Currently 12 under, Matteson is four clear of three-time defending champion Steve Stricker. After a bogey on No. 11, his second hole of the day, Stricker has racked up three birdies to close his opening nine in 2-under 34. One behind Stricker and on the course are Tommy Biershenk and Gary Christian. Ricky Barnes, also at 7 under, will tee off this afternoon at 1:25 p.m. ET. There are currently 15 golfers in a group at 6 under, six back of Matteson. Click here to track the leader as he plays his second nine.