Lewis Hamilton was made to wait for his fifth Formula One world championship on Sunday after the Mercedes driver finished only third in a U.S. Grand Prix won by Ferrari veteran Kimi Raikkonen.

The victory was the 21st of the 39-year-old Finn’s career and first since the Australian Grand Prix of March 2013, a gap of 113 races dating back to when he was racing for now-defunct Lotus.

Red Bull’s Dutch youngster Max Verstappen took a surprise second after starting 18th in a thrilling finale with the top three cars running nose-to-tail and separated by just 2.1 seconds at the chequered flag.

Ferrari’s Sebastian Vettel, Hamilton’s only title rival, spun down to 15th on the opening lap but fought back to finish fourth — a result that means the championship remains mathematically open going into Mexico next weekend.

Hamilton, on 346 points, has a lead of 70 over his four-times champion rival with a total of 75 remaining to be won from the last three races.

That means even if Vettel wins in Mexico, the Briton need finish only seventh to be sure of the title but Sunday was still a missed opportunity for Mercedes, who got their tyre strategy wrong.

“I actually thought we would have been able to do better but this is the best we were able to do in the end,” said Hamilton. “We just have to keep working and keep pushing for the next race.

“I’m not really quite sure how the strategy ended up like that,” added the Briton, who had started on pole position but lost the lead to Raikkonen into the first corner at a sunny Circuit of the Americas.