Unheralded American Chris Gotterup captured the 2025 Genesis Scottish Open on Sunday, edging Masters champion Rory McIlroy in the tournament’s final tune-up before next week’s Open Championship at Royal Portrush. Ranked 158th in the world, the 25-year-old Rutgers University graduate sealed only his second PGA Tour victory, adding to last season’s ONEflight Myrtle Beach Classic triumph. Gotterup set the tone with a nine-under-par 61 in Friday’s second round at the Renaissance Club, matching the East Lothian course record and vaulting into a two-shot halfway lead. He shared the 54-hole advantage with McIlroy but held his nerve in blustery Sunday conditions, closing with a level-par round to finish one stroke clear of the four-time major winner. McIlroy, who was chasing his 30th PGA Tour title, carded successive rounds of 65, 66 and 68 to stay in contention but could not overhaul Gotterup on the inward nine. The Northern Irishman nevertheless declared the week a "great tune-up" ahead of his home Open, where he will play the opening two rounds with Justin Thomas and Tommy Fleetwood. The Scottish Open marked the final event in the PGA Tour’s European swing and offered a late entry to Portrush. Gotterup’s victory secures his place in the season-ending FedEx Cup playoffs and moves him inside the world’s top 100, underscoring the growing depth in men’s professional golf.