Jon Rahm wiped away a tear of joy after replacing Rory McIlroy as world number one by winning the Memorial Tournament.
A three-over-par 75 was enough to win on nine under, three clear of American Ryan Palmer (74), with Matt Fitzpatrick (68) third on five under, with fellow Englishman Matt Wallace (72) one back.
Rahm is the second Spaniard, after Seve Ballesteros, to top the rankings.
“I’ve accomplished a lifelong goal and any time I can join Spanish history with Seve is incredible,” said Rahm.
“But it’s hard to process right now because golf feels secondary. I lost two family members in the [coronavirus] quarantine.
“There are so many things going through my mind right now that have nothing to do with golf.”
This was the sixth PGA Tour event since professional golf resumed in the United States after an enforced three-month shutdown and had been been earmarked as the first to allow fans in to watch.
However, last week the PGA Tour said the remaining nine events of this season would take place behind closed doors as cases of coronavirus continue to soar in the country.