Austria’s Matthias Mayer, who won the race last year and came runner-up to Feuz on Friday, finished 0.38 behind in third.
Working their way back from injuries, Christof Innerhofer placed fourth and his Italian teammate Dominik Paris, who has won the race three times, finished seventh.
Travis Ganong led the U.S. ski team in 12th, 1.35 behind.
While Friday’s race on the same course was marred by bad crashes involving Swiss skier Urs Kryenbühl and Ryan Cochran-Siegle of the United States, only three of 52 racers failed to finish Sunday’s downhill and all avoided injuries.
Organizers had lowered the final jump, where Kryenbühl crashed in Friday’s race, which had been rescheduled from another iconic resort, Wengen in Switzerland.
As skies cleared again in Sunday’s event, some late starters had clearer visibility and came close to the times of the top-ranked racers, most notably Florian Schieder.
The Italian, wearing bib No. 50, led Feuz by more than a quarter of a second for the first four splits but ultimately finished 1.43 seconds behind in 14th.
The result made Feuz the first downhiller to win two races this season, after Martin Cater of Slovenia, overall champion Aleksander Aamodt Kilde and Mayer won the other events.
Feuz and Mayer went 1-2 in the season standings with Kilde in fourth, though the Norwegian is out for the season after damaging his knee in a training crash a week ago.
Feuz won the season-long downhill title the past three seasons.
“I don’t look back at results, I am just enjoying the way I am skiing again now,” said Feuz, who was 10th in the previous downhill, in Italy in December.
The race in the Austrian Alps is one of the marquee events on the men’s World Cup calendar and is usually attended by up to 50,000 spectators, though no fans were allowed this year amid tight anti-coronavirus measures.
The race was postponed by a day because of bad weather Saturday, pushing back the initially scheduled super-G to Monday.
There will be one more World Cup downhill, in Garmisch-Partenkirchen on Feb. 6, before next month’s world championships in Cortina d’Ampezzo.
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