The 28-year-old Slovenian broke away on the last climb up Volovjek, keeping a fair distance ahead of the riders in pursuit as he descended on his own into the packed centre of Kamnik.

This enabled Roglič (LottoNL-Jumbo) to take the yellow jersey off Columbian Rigoberto Uran (Drapac Cannondale), who finished fifth today.

"I felt better today than yesterday. After Pavličevo pass I told my teammates I wanted to start the last climb in the best possible rhythm. I told them I'd do the rest on my own," Roglič said.

"This was amazing. It gives you goose pimples seeing all those supporters. This is for them, for the supporters; the best thing is if a Slovenian wins in the end," he said overwhelmed by emotion.

Roglič is heading into Sunday's 21.5 km time trial between Trebnje and Novo Mesto as the favourite, having taken silver in the individual time trial at last year's World Championships.

He has a 32-second lead ahead of Uran in second and 42 seconds ahead of Pole Rafal Majka, last year's winner of the Tour of Slovenia, in third.

Slovenia's Matej Mohorič crossed the finish line of stage four as the first in the front group in pursuit, who finished the race 32-seconds behind Roglič.

Coming in third today was Majka, followed by Slovenia's Tadej Pogačar.

Slovenia was close to scoring a triple win today.

"Primož was the one who decided the race. He was really strong. Hat off, he was magnificent, he deserved the victory," said Mohorič, who finished the stage second and is 5th overall.

After four stages, Italian Simone Consonni has secured the red jersey of the top scorer, while his compatriot Fausto Masnada has claimed the blue jersey of best climber.