Alaphilippe started his 2017 spring preparation in Abu Dhabi Tour.
He finished 5th overall and won the young rider classification.
In March, he rode Paris–Nice and won his first career time trial, with an uphill finish in stage 4 keeping his race lead in the next three days.
He finished 5th overall eventually, but able to remain the winner of the young rider classification.
The four top-5 stage finishes was also enough for him to clinch the points classification.
The following weekend, Alaphilippe finished third at Milan–San Remo, being narrowly beaten in a sprint by Michał Kwiatkowski and world champion Peter Sagan after the trio broke clear on the final climb, Poggio di San Remo.

After a strong start, Alaphilippe's season was hampered by a lengthy injury sustained at the Tour of the Basque Country.
It was announced in April by his team that Alaphilippe would miss the Ardennes classics due to a pre-patellar lesion knee injury.
He also missed out his primary goal of the year, the Tour de France, after undergoing knee surgery in May. Alaphilippe returned to racing at Grand Prix Pino Cerami in July, and made his debut at the Vuelta a España a month later.
He scored his maiden Grand Tour stage win in Stage 8 during which he outclimbed Rafał Majka and Jan Polanc from a breakaway.

In August, Alaphilippe signed a two-year contract with his team Quick-Step Floors, keeping him through the 2019 season.
Alaphilippe started his 2017 spring preparation in Abu Dhabi Tour. He finished 5th overall and won the young rider classification. In March, he rode Paris–Nice and won his first career time trial, with an uphill finish in stage 4 keeping his race lead in the next three days. He finished 5th overall eventually, but able to remain the winner of the young rider classification. The four top-5 stage finishes was also enough for him to clinch the points classification. The following weekend, Alaphilippe finished third at Milan–San Remo, being narrowly beaten in a sprint by Michał Kwiatkowski and world champion Peter Sagan after the trio broke clear on the final climb, Poggio di San Remo.
After a strong start, Alaphilippe's season was hampered by a lengthy injury sustained at the Tour of the Basque Country. It was announced in April by his team that Alaphilippe would miss the Ardennes classics due to a pre-patellar lesion knee injury. He also missed out his primary goal of the year, the Tour de France, after undergoing knee surgery in May. Alaphilippe returned to racing at Grand Prix Pino Cerami in July, and made his debut at the Vuelta a España a month later. He scored his maiden Grand Tour stage win in Stage 8 during which he outclimbed Rafał Majka and Jan Polanc from a breakaway.
In August, Alaphilippe signed a two-year contract with his team Quick-Step Floors, keeping him through the 2019 season.
Julian Alaphilippe