The unflappable Japanese star shot a closing eight under 65 to win by three shots.from fellow major winner Collin Morikawa (67) on the Plantation course at Kapalua on Monday AEDT.
Matsuyama's 35 under total - from rounds of 65 65 62 65 - was one stroke better than the tour's 72-hole record to par set by Australian Smith when he won the same tournament in 2022 by one shot from John Rahm at 34 under.
Matsuyama made an 8-foot birdie putt on the par-5 18th hole, lightly pumping his fist in about the only emotion he showed all week.
The 2021 Masters champion set another PGA Tour record with that final birdie, his 35th hole at birdie or better for the tournament. Smith in 2022 and Sungjae Im last year held the previous record.
World No.6 Matsuyama earned his 11th career title on the PGA Tour, and his third win in the last 10 months, all against some of the strongest fields.
Australians Cam Davis (69) and Adam Scott (70) could not keep up with the red-hot pace as they slipped out of the top 10 in the final round following their 64s the previous day.
Davis was tied 13th, 13 shots behind Matsuyama, with Scott a further shot back while countryman Jason Day (70) tied for 40th at 14 under.
South Korea's Im was third, three shots adrift of Morikawa, after a closing 62.
with The AP
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