Rome - Vuelta a Espana champion Primoz Roglic won the Tre Valli one-day race in farcical circumstances on Tuesday after a breakaway group took a wrong turn on a late descent.
For the Slovenian it was a second victory in three days after winning the Giro dell'Emilia and sets him up for the final one-day monument of the season, the Tour of Lombardy on Sunday.
With 15km to go, a strong breakaway group including UAE Team Emirates' Dan Martin, four-time Grand Tour winner Vincenzo Nibali, Spaniard Alejandro Valverde and Trek-Segafredo's Dutch rider Bauke Mollema missed a turn speeding downhill as they followed a television motorbike off the route.
With 500m to go, Roglic launched a blistering attack and crossed the line on the shores of Lake Varese three seconds ahead of Giovanni Visconti.
"I was lucky with the guys who went the wrong way, otherwise I couldn't have won," said Roglic after securing Jumbo-Visma's 50th victory of the season.
"Let's say we did an extra loop down to the lake," Nibali said.