Ted Ligety cemented his status as the world's top giant slalom skier on Saturday in Slovenia by winning his fifth race of the season and clinching the World Cup discipline title with a race to spare.

It's the American's fourth GS title after also winning in 2008 and 2010-11. He also successfully defended his GS title at the world championships last month.

"To win here again is a super cool feeling," said Ligety, who has won in Kranjska Gora five times and been on the podium every year since 2008. "I am really proud of that."

Ligety held on to his first-run lead to win Saturday's race in two minutes, 35.43 seconds for his 16th career victory, all in GS.

The victory earned Ligety an insurmountable 125-point lead over Austria's Marcel Hirscher, who was 0.45 behind in second.

The last GS of the season takes place next Saturday during the World Cup finals in Lenzerheide, Switzerland.

"It's a big weight off my shoulders," Ligety said. "I had an awesome, awesome season but Hirscher was there all the time. Even if I beat him by three seconds, he was still in second place. That makes it tough going for the title. It becomes kind of a head game when he is so close all the time. So I am pretty psyched to have it locked up now."

Ligety has finished on the podium in all seven GS races this season and became the first man to achieve that feat since Michael von Gruenigen of Switzerland in 1995-96.

Alexis Pinturault of France came third, 0.77 behind, and Felix Neureuther of Germany placed fourth, 0.81 off Ligety's time.

In the overall standings, Hirscher extended his lead to 69 points over Norway's Aksel Lund Svindal, who finished sixth.

Rain made for difficult conditions during the final run on a course that already been softenened by days of mild temperatures.

"Racing in the rain is not my favourite thing," Ligety said. "I grew up in Park City, Utah, where it's usually warm and sunny. These are totally different conditions."

Ligety led Hirscher by 0.60 after the opening run, in which the Austrian placed fourth behind Pinturault and Neureuther.

"The snow is really soft," Ligety said. "It's hard to keep your edge in the snow well. It didn't feel good at all. This is a very difficult course set, especially for how the snow is running. It was tough to have a good feeling."

The course for the first run was set by Austrian slalom coach Michael Pircher. He designed numerous sharp turns, an unusual feature for a GS and one that didn't benefit Hirscher.

"I don't know why it didn't go better," said Hirscher, who beat Ligety for the GS title last season. "My feeling was OK, but obviously it wasn't good. It's hard to tell, it's a mystery to me."

A men's World Cup slalom on the same course is scheduled for Sunday.