Jon Mills won his last start at the Boise Open and shot a 6-under 65 on Thursday. He is tied for second place with Brenden Pappas, Tim Wilkinson and Richard Johnson.
Anderson began his opening round on the 10th tee and did not get into red figures right away. He bogeyed the par-5 11th hole, then summed up his feelings about the hole.
'I hate No. 11,' he said.
After the early hiccup, Anderson calmed down. He kicked in a 4-foot birdie putt at the 13th, then holed a pair of 8-footer for three consecutive birdies.
He closed his opening nine with a birdie at the par-5 18th. Anderson missed the green with his second shot, but chipped to 5 feet and converted the putt to make the turn at 3 -under 33.
On the second nine, Anderson parred the first, but sank a 6-foot birdie putt at two. He knocked his approach inside a foot to set up an easy birdie at three and found himself 5-under par for the championship.
Anderson found a divot en route to bogey at the sixth, but he closed with a flurry. He ran home a 10-foot birdie putt at the seventh, a three-footer for birdie at eighth and finished off with an 18-foot birdie putt at the par-3 ninth.
'It was a great day because I was actually uncertain of a lot of things into the day,' said Anderson, who at 98th, needs help if he is to get into the top 25 on the money list and have a shot at the PGA TOUR next year.
The thing Anderson was most uncertain of was his putting. He switched to a belly putter on Monday and immediately saw results.
'I don't know what I'm doing with the belly putter,' he admitted. 'I don't know how to use it, which is probably a good thing. I made a couple of good putts that calmed me down.'
B.J.Staten, Tee McCabe, Keith Nolan, Daniel Summerhays, Jeff Wood, Keoke Cotner and former Masters runner-up Len Mattiace are tied for sixth place at minus-5.