Seamus Power propelled himself into contention at the Sentry Tournament of Champions with an eight-under 65 in the second round.
The Waterford golfer's bogey-free round has lifted him up to 10 under and seven off the lead held by Australia's Cameron Smith at the Plantation course in Hawaii.
In an outstanding day two for the 34-year-old, he made eagles on five and 15, with birdies on the fourth, sixth, ninth and 18th to start Saturday's third round in a seven-way tie for eighth, alongside Brooks Koepka and Xander Schauffele.
Speaking after his round, Power said: "It was all around a good round. Everything was kind of going pretty well.
"I made a couple of eagles on the par-fives, couple of putts that could have been here or there, but overall it was very steady, I didn't miss a whole lot, wasn't really in trouble at all, hit a lot of greens, and I got a nice putt there on the last to finish it off."
Smith birdied his final four holes on his way to carding a nine-under 64 to reaffirm his grip on the lead, holding a three-shot advantage at the summit over world number one Jon Rahm of Spain and American Daniel Berger.
After opening with a 65 on Thursday, it means Smith's 17-under 129 matches the 36-hole record set by South Africa's Ernie Els in 2003.
It didn't look like Smith's day early on. He bogeyed the first two holes and slipped down the leaderboard while other players were shooting low. But like Power at the par-five fifth hole, he chipped in for eagle from just off the green - his second straight day eagling the hole - to get his round on track.
He finished the day with nine birdies, six of them coming on a bogey-free back nine.
Rahm posted his second bogey-free 66 in a row to move into a tie for second at 14 under. If Rahm finishes the tournament in first or second place, he will fend off Collin Morikawa and maintain his number one spot in the Official World Golf Ranking for another week.
Berger matched Rahm's 66, eagling the par-five 15th hole while maintaining a clean card. He was paired in a group with Smith for the first two rounds.
Patrick Cantlay (bogey-free 67) is alone in fourth place at 13 under. Japan's Hideki Matsuyama made a push on the back nine with four straight birdies at holes 13-16. He carded a 65 and is tied for fifth at 12 under with Sungjae Im of South Korea (67).
The tournament only invites players who won an event in the previous season and there is no 36-hole cut.