Early stages The race began in wet and cold conditions in Milan. Four riders formed a breakaway shortly after the beginning of the race:
Jan Bárta (),
Juan Sebastián Molano (),
Andrea Peron () and
Maarten Tjallingii (). They were joined shortly afterwards by
Marco Frapporti,
Tiziano Dall'Antonia (both ),
Matteo Bono (),
Serge Pauwels (),
Adrian Kurek (),
Stefano Pirazzi () and
Julien Bérard (). After , they had a lead of over 10 minutes. and were among the teams leading the peloton; their efforts reduced the gap to seven minutes after . As the breakaway passed over the Passo del Turchino, about halfway through the race, they had a lead of five minutes. The gap was briefly as low as four minutes, but was generally held at about five minutes until there were about left to race. As the riders arrived on the Mediterranean coast, the weather conditions improved, with the rain stopping and the roads drying out.
Tre Capi and the Cipressa With remaining, as the riders climbed the Capi climbs, the breakaway's lead was reduced to three minutes; this was reduced again to 90 seconds over the next . The leading group was breaking up during these climbs, leaving Pirazzi and Bono at the front of the race. were the main team controlling the peloton at this point, especially as the climb crossed the Capo Berta.
Luke Rowe was leading the group, with
Geraint Thomas,
Ben Swift and
Salvatore Puccio immediately behind. On the descent from the Capo Berta, Puccio crashed and brought down several riders behind him, including
Zdeněk Štybar () and
Christopher Juul-Jensen (), whose crash resulted in a bloodied face. Following Puccio's crash, Rowe, Thomas and Swift had a gap ahead of the peloton. Rowe continued to drive the three-man group of riders and they caught the remainder of the original breakaway, with Bono the last to be caught. Several riders bridged across to the Sky group, including Štybar and
Greg Van Avermaet (), while kept up a fast pace in the peloton. As the riders reached the foot of the Cipressa climb, the groups came back together. At this point,
Arnaud Démare () crashed. On the climb, 's
Lars Petter Nordhaug and 's
Julián Arredondo set the pace and caused difficulty for several of the sprinters, including
Alexander Kristoff (),
Mark Cavendish () and
Nacer Bouhanni (). On the descent from the Cipressa,
Filippo Pozzato () put in a brief, unsuccessful attack. Soon afterwards
Daniel Oss () attacked and was followed by Thomas. Oss and Thomas built a lead ahead of the main group. With to the finish line, they were 30 seconds ahead. After some hesitation, the lead was cut down by the pack behind, initially led by
José Serpa (), then by riders from and . The pack was 17 seconds behind at the foot of the Poggio climb. These included
Michał Kwiatkowski (),
Gerald Ciolek () and Štybar. Van Avermaet and Thomas were caught soon after the summit of the Poggio, with one reduced group coming into the finish. Thomas continued at the front of the group, bringing back another attack from Van Avermaet and attempting to lead out Swift, but he was exhausted from his earlier efforts in several breakaways. As no rider was able to escape from the front group in the final part of the race, a group came together into the finishing straight. Paolini attempted to lead out Kristoff, as he had done a year earlier. Kristoff launched his sprint with remaining, but was tired after a long day's racing and was unable to maintain his speed to the finishing line.
John Degenkolb () came around him in the final to take the race win, the first
monument win of his career. Kristoff finished second, while Matthews beat Sagan to third place. == Results ==