Gotterup, who adopted up a first-round 63 with rounds of 71 and 70, mentioned: “I did not assume this might occur, particularly after Friday and Saturday, however right here we’re.
“Hideki was enjoying nice. I simply figured I’d keep free.”
Victory gave Gotterup his the fourth PGA Tour title, and his second of the season after the Sony Open in Hawaii final month.
World primary Scottie Scheffler missed out on the play-off by one shot after going spherical in 64.
“I performed fairly nicely – just one spherical the place I did not have my greatest stuff,” mentioned American Scheffler, who carded a first-round 73.
“If I get in the home the primary day with a pair below par, it is a little bit completely different story right now.”
England’s Matthew Fitzpatrick completed in ninth on 13 below after a 69.
