But this wasn't out of the blue and is unlikely to be a flash in the pan: he's won numerous Grand Tour stages and collected a number of green jerseys at the Tour de France.
A prodigious talent capable of winning on a range of parcours and against the clock too, the Slovak is a force in modern cycling. This season wasn't all positive though and a lacklustre Classics campaign called his prospects and wage packet into question.
He turned things around at the Tour of California and went on to have a successful second half of the season which culminated in a rainbow jersey.
He'll now carry that jersey into next year, where he'll be looking to dominate the Classics and finally take a Monument win… and on present form, who'd bet against him?
In honour of the new World Champ, answer these 17 questions to see how well you really know him.
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