The 25-year-old crossed the line ahead of Thibaut Pinot (Groupama-FDJ) and teammate Esteban Chaves. With a time gap to their other rivals, Yates now leads the race by 32seconds to Chaves who moves up into second overall and 38 seconds to Tom Dumoulin (Team Sunweb) who drops to third.
Happy with the break:
Fourteen riders rode off the front as the flag dropped for the 225km stage and with Gianluca Brambilla (Trek Segafredo) the closest threat on the general classification at six-minutes 40seconds down, Mitchelton-SCOTT let them ride out to a sizable advantage.
Happy to let them contest the stage, Svein Tuft and Sam Bewley rode tempo with the margin hovering between seven and eight minutes.
After hours on the front, Astana then took up the chase inside the last 40km and brought the stage victory back into contention.
With 20km to go Mitchelton-SCOTT moved back to the front with Roman Kreuziger before Jack Haig took the reins and put in another mammoth effort to end the day of the final surviving breakaway riders before peeling off and leaving the rest up to his leaders with less than three kilometres remaining.
It was Giulio Ciccone (Bardiani-CSF) and Domenico Pozzovivo (Bahrain-Merida) who were the most active in the final two kilometres, but they were chased repeatedly by Pinot with Yates and Chaves on his wheel.
Timing his run to perfection, Yates left it to the final 100m to launch from the wheel and come around for a prestigious victory in the pink jersey.
Simon Yates – Stage winner/Race leader:
“That one was for the boys, the big guys who’ve been riding on the front all day. They’ve had a couple of tough days, always riding on the front on some really long stages. That’s for those guys.”
"From the beginning of the stage today, we were always thinking that if we kept the break close enough then it might be possible for the stage. Once Astana showed some interest in the stage then I knew it was possible. You never know deep into the final."
“It was a very long stage, a hard race in the end, I'm really tired but I'm happy that I managed to win the stage. I said from the beginning that we came here to win.”
Giro d’Italia stage nine results:
- Simon Yates(Mitchelton-SCOTT) 05:54:13
- Thibaut Pinot (Groupama-FDJ) ST
- Esteban Chaves(Mitchelton-SCOTT) ST
General Classification after stage nine:
- Simon Yates(Mitchelton-SCOTT) 37:37:15
- Esteban Chaves(Mitchelton-SCOTT) +0:32
- Tom Dumoulin (Team-Sunweb) +0:38
Photos courstey of Getty Images.