Collin Morikawa will head into the weekend leading the Sentry Tournament of Champions by two strokes, sitting at 16 under through 36 holes.
Morikawa has looked right at home on the Kapalua Plantation Course on the island of Maui, following his nine-under 64 with a seven-under 66 on Friday.
He began his second round in blistering form, birdieing four of his first five holes, before going on to finish with his second consecutive bogey-free day.
The two-time major champion has not won a PGA Tour event since The Open Championship in July 2021, while his last win in any event came at the DP World Tour Championship in November 2021.
He will be looking to fend off the challenge of world number two Scottie Scheffler, who is tied for second at 14 under after a pair of 66s.
Scheffler's nine birdies on Friday tied with Luke List for the day's most, and he is joined at 14 under by J.J. Spaun.
Jordan Spieth used a pair of eagles to pull to within striking distance, birdieing the 18th to jump into outright fourth place at 13 under.
Young phenom Tom Kim is alone in fifth at 12 under, while major champions Matt Fitzpatrick and Jon Rahm are tied for sixth at 11 under.
List and Tony Finau are in the group at 10 under, with Hideki Matsuyama headlining those at nine under, and the pair of Will Zalatoris and Adam Scott will still feel they are in with a chance – eight off the pace at eight under.