So the big winner on GC today was Andrey Amador, who moved up to sixth after starring in the break. Tanel Kangert, too, moved into the top ten at the expense of Steven Kruijswijk...
Florence - Bagno di Romagna
Giro d'Italia - 17 May 2017
Giro d'Italia – Follow this cycling race live with Eurosport. The action starts at 20:35 on 17 May 2017. Our live coverage lets you follow all the key moments as they happen.
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Here's today's top 10.
What a nail-biting finale to the stage... bravo, Omar Fraile!
Here's the moment Fraile netted his first ever Grand Tour stage win - by two bike lengths, no less.
Quite outstanding by Fraile there considering his efforts earlier in the stage - riding clear with Mikel Landa for so long and pressing as he did for those KOM points. The day was his, and nobody else's.
A group containing Steven Kruijswijk and Geraint Thomas crosses the line 2:24 down so they'll drop in the standings again... The Welshman paying, perhaps, for yesterday's ITT effort.
The maglia rosa group comes home 1:37 down on the winner, Omar Fraile of Dimension Data.
The Spaniard powered through after Kangert opened it up... Costa took his back wheel but didn't have the legs to beat Fraile, who seals a first ever Grand Tour win - emphatically so.
WHAT A VICTORY FOR OMAR FRAILE!!!
They can't mess around because the others are closing in...
Rolland latches on to Kangert's wheel. Costa and Fraile close the gap. It will be a four-way sprint.
Rolland reeled in by Costa and Fraile. The Astana rider is closing in... it's Kangert. And he's joined them.
Rolland rides clear as Fraile and Costa look at one another...
Big dig from Rolland... Costa covers it with Fraile... and an Astana rider has attacked behind!
The road goes uphill slightly ahead of the line... still 10 seconds.
Still touch and go for the three leaders, who have about 10 riders in pursuit just 10 seconds behind - including Astana duo Kangert and Cataldo.
Just 12 seconds now so these three leaders could yet be caught.
Fraile is the only man in this trio not to have won a Grand Tour stage. He's also the youngest, plus has been out for large swathes of this stage. He must be cooked. But boy does he have fighting spirit. The sensible money is on Rui Costa, however.
Costa has made contact with the two leaders - and that will give them a better chance at staying out. They have 18 seconds to play with, with the pink jersey group 2:06 back.
It's pretty chaotic out there, with groups and riders all over the road. So bear with us as we do our best to make sense of it all. Costa is closing in on the two leaders, Rolland and Fraile. If he catches them, he'll be the favourite to win in Tuscany less than four years after he became world champion in Florence.
Philip Deignan, who looked strong in the break, has been called back to help pace Geraint Thomas, who was distanced on that last climb.
Fraile digs deep as he bids to hold off the returning riders ahead of the final descent. Costa has closes the gap to 10 seconds.
Costa and Deignan lead the chase from the break on this uphill segment. They have slashed the gap to 15 seconds as Costa puts in another attack on this little lip.
Pinot has been caught by the other race favourites, but Fraile and Rolland have 20 seconds over their chasers as they approach the small uphill section that breaks up this descent.
Rolland and Fraile have 17 seconds over the break, 2:04 over Pinot and 2:11 over the maglia rosa group, who are closing in.
Rolland catches Fraile on the descent, but the gap they have over the other escapees is quite small. Well, it's 15 seconds - so not too shabby. And it's a good, new surface for them, too.
Fraile is on this descent and - unsurprisingly - he's maintained, and extended, his lead over Rolland. But he's looking over his shoulders a lot, suggesting he's about to be caught. The Spaniard has drawn level with Jan Polanc, the winner on Mount Etna, in the KOM standings after today's effort.
Pinot opens up a gap and goes over the top of this climb 2:05 down on Fraile, the leader. Dumoulin leads the others over about five seconds further back. It's now time to go downhill... so buckle up and hold on tight.
Back with the race favourites, Zakarin has joined them - just as Pinot attacks! The Frenchman opens up a small gap - but remember, he's not the most confident of descenders...
Fraile looks like death as he digs deep to come round Rolland and take the points over the summit. Bravo - what an effort. Rolland crests just behind him and they will hold a small gap ahead of this descent.
Rolland grimaces as he fights this double-digit gradient. Behind, Fraile has attacked in pursuit of those KOM points.
SHARK ATTACK! Nibali has a dig, forcing a reply by Pinot, Quintana and Anacona. POzzovivo bridges over. Dumoulin drops back but then closes it, but Geraint Thomas looks to be tiring. Mollema, Jungels, Yates are also there, and Reichenbach. But Kruijswijk has been distanced.
The climb is ramping up now as Rolland puts in a dig with the chasers closing in. Costa and De Plus dig deep. Meanwhile, Nibali and a Bahrain Merida team-mate have come to the front of the main pack and blown it to smithereens! Great scenes ahead of the summit and descent to the finish...
Ben Hermans of BMC leads the chase from the break, which trails these three leaders by 11 seconds.
Rolland has now joined De Plus and Costa on the front of the race. Meanwhile, Dumoulin only has Geschke with him now - with four Movistar riders, including Quintana, just behind. Remember, the Spanish team also have Amador, Herrada and Rojas up the road... so they're planning something.
Just as Rojas calls it a day, it's not Amador who attacks but Laurens de Plus of QUick-Step! The Belgian youngster opens up a small gap before Tanel Kangert - with Rui Costa on his wheel - closes it down. The Portuguese former world champion then puts in an attack of his own - and takes De Plus with him.
Amador has edged closer to the front of this break as Movistar team-mate Rojas continues pulling hard. Between then rides Dario Cataldo of Astana, with Pierre Rolland of Cannondale just behind. Omar Fraile, who rode clear with Landa earlier, is there too. It's all ready to explode once the gradient ramps up near the summit.
Jeremy Roy grimaces in pain after dropping off the front of the main pack after a serious piece of tempo-setting for FDJ. The gap is still at 2:50 as Steve Morabito takes over the reins for FDJ.
Herrada drops back from the break after his fierce pace-setting earlier on the climb. Igor Anton and Tomasz Marczynski have also been dropped, as has Davide Villella. It's now Jose Joaquim Rojas who sets the tempo for the break, paving the way for an attack by Andrey Amador, in all likelihood.
FDJ paving the way now for Pinot, with two riders near the front alongside Peter Stetina of Trek-Segafredo. Dumoulin is there with three Sunweb team-mates and just ahead of the Movistar train. They trail the leaders by 2:50.
Not only has he been caught, Mikel Landa has now been spat out the back of this break - the Basque climber paying for his earlier efforts. He's in good company as news also filters through that Tejay Van Garderen has been dropped by the main pack.
It's coming back together... Landa has been reeled in and the pacing from FDJ and Trek-Segafredo have helped slash the lead of the large break to three minutes.
I've actually got things in a twist: the official start of the Cat.2 Monte Fumaiolo was further back, at the start of what I thought was the preceding uncategorised climb. There are two downhill segments that break this climb up, and in total it's 23.1km at 3.7%, peaking at 12% right near the steep summit. Landa still defies the chasing group - just - but he'll soon be joined by his Sky team-mate Philip Deignan.
Fraile is the first to be caught by the break as the leaders crest the summit of this uncategorised climb ahead of the final climb proper. Landa continues to defy his pursuers on this short downhill. He has about 10 seconds.
Confirmation that the Trek-Segafredo rider who crashed earlier on the descent of the first climb was Laurent Didier, and he's had to withdraw from the race. It looked like he was clutching his leg in some pain.
Here's the two leaders... but it's not looking good for them: Landa and Fraile have seen their gap slashed to 20 seconds at the start of this next climb.
Trek-Segafredo and FDJ have now joined the chase on the front of the peloton - they're finally lending a hand because the threat that Amador have on their men Bauke Mollema and Thibaut Pinot, who are slipping down the GC if things stay as they are today.
Here comes the Sunweb-led peloton, which brings the maglia rosa Dumoulin over the line 4:50 down on the two leaders. It's perfectly poised now for a flurry of action in the final third - at least, we can only hope.
Remember, Movistar have three riders in this chase group: Herrada, Amador and Rojas. It's Herrada who is setting the tempo and leads his fellow escapees over the finish line 1:40 in arrears. Keep this up and Amador will rise from ninth to second on GC today, just above Quintana. That's quite an exciting prospect for this race...
Landa and Fraile are now riding along the finish straight in Bagno di Romagna ahead of the final 50km finish circuit - or out-and-back loop. They have two minutes over the chasers and five minutes over the main pack.
After a very short descent, the two leaders come through the intermediate sprint at San Piero in Bagno with a two-minute lead over the chasers. It's uncontested with Landa, I think, taking the spoils.
Hugh Carthy was caught by the Sunweb-led peloton as they came over the summit five minutes down on the two leaders. The young Briton is feeling the pinch - so Cannondale now only have two riders in the chasing group: Villella and Rolland.
Our two leaders crest the summit of the Cat.3 Passo del Carnaio and it's Fraile who takes maximum KOM points once again.
A nice Bartali-esque touch there as Fraile picks up an energy bar from one of his soigneurs and then gives it to Landa, his fellow Basque escapee. Proof that this leading duo mean business and will probably stay out until the end... perhaps.
The calm before the storm... today's first hour was pretty frantic, but things have calmed down somewhat since. But you get the impression that sparks will flat soon - once the race drops down the back of this climb and passes through Bagno di Romagna for the first time ahead of the final 50km finish circuit.
Montaguti's brief foray up the road is over and Rojas is now setting the tempo in the chasing group. The gaps are stable: 2:18 for Landa and Fraile back to the break, and 4:50 back to the maglia rosa group.
Kangert and Rolland lead the chase from the break on Montaguti, who is being reeled in after his little attack. This large group is all stretched out on this climb and is bound to splinter before the summit.
It's looking good for this Basque leading duo of Landa and Fraile, who have 2:20 over the chasing group and 4:35 over the pink jersey group. Matteo Montaguti of Ag2R-La Mondiale has, however, attacked from the break behind - he has a long gap to close if he wants to become the first Italian stage winner on this year's Giro...
Dumoulin still has four Sunweb team-mates with him on the front of the pack, which trails the two leaders by exactly five minutes approaching this sect climb. Landa and Fraile are already onto it, in fact - the Cat.3 Passo Carnaio (11.4km at 4.5%). It's a real staircase of a climb, with flat sections followed by ramps peaking at 11%, which makes that average gradient rather misleading.
The leading duo are now on the last, gentlest part of this long descent. The road will soon kick up for the third categorised climb, a short and sharp descent ahead of the second intermediate sprint, and then the long final climb that preceded the two-tier descent to the finish. Still loads of racing to go in this cluster-boggle of a stage.
The gaps continue to grow, with Landa and Fraile now holding an advantage of 2:15 over their chasers and 5:23 over the maglia rosa peloton. Some stunning aerial shots coming from the helicopters, too.
Two Movistar riders also appear to have come a cropper: replays show Gorka Izaguirre, a stage winner last week, remonstrating with a Movistar team-mate on the side of the road, with their bikes tangles up with the barrier. More on that when we get it.
Franco Pellizotti (Bahrain Merida) went into a barrier on the descent in an incident which also saw a Trek-Segafredo rider go over the barrier and end up dangerously close to a precipice... we only saw the aftermath but it doesn't look good for either rider.
The peloton goes over the summit just over five minutes in arrears... and there's been some crashes!
Omar Fraile takes the points over the top of the summit of the Cat.3 Passo della Calla with Mikel Landa happy to leave them for his fellow escapee. Fraile had 9pts in the KOM standings this morning - compared to the 44pts of maglia azzurra Jan Polanc - but he should be able to ride up the standings today if he continues in this vein. Remember, the Dimension Data rider has form here: he won the king of the mountains competition in the Vuelta in both 2015 and 2016.
It's a bit of a coup today for Cannondale-Drapac to have not only three riders in the break, but three climbers who could well challenge for the win today. They're without a WorldTour scalp in just over two years, but Rolland, Carthy and Villella give them hope today.
Landa and Fraile have 1:45 over the chasing group and 4:30 over the peloton as they near the summit of this second categorised climb of the day. It's a long but gentle climb through dense pine forests.
Right, we've finally got some time gaps and a full composition of riders in the 23-man break: Giovanni Visconti (Bahrain-Merida), Hubert Dupont and Matteo Montaguti (both Ag2R-La Mondiale), Dario Cataldo and Tanel Kangert (both Astana), Ben Hermans (BMC), Pierre Rolland, Hugh Carthy and Davide Villella (all Cannondale-Drapac), Ivan Rovny (Gazprom-Rusvelo), Tomasz Marczynski and Maxime Monfort (both Lotto Soudal), Andrey Amador and José Joaquin Rojas (both Movistar), Ruben Plaza (Orica-Scott), Laurens de Plus (Quick-Step Floors), Igor Anton (Dimension Data), Martijn Keizer (LottoNL-Jumbo), Philip Deignan (Team Sky), Laurens ten Dam (Team Sunweb), Rui Costa and Simone Petilli (both UAE Team Emirates) and Simone Andreetta (Bardiani-CSF).
Dumoulin now has four Sunweb team-mates and so order has been restored. Landa, trying to reinvigorate his and Sky's Giro, continues to combine well with Fraile. We don't have a gap for them back to the break, but they have 4:20 over the main pack.
The gap for the two leaders is almost four minutes now as Sunweb manage to calm things down in the main pack and lead the chase for their man Dumoulin. We're almost half way up the Passo della Calla. These may have been Gino Bartali's roads, but Marco Pantani also used to train here in his time.
The likes of Visconti, Pupont, Carthy, Herrada, Rolland, Keizer, Deignan and Costa are all there in the break too. We'll bring you a full composition as soon as we get it. The gap between the two leaders - Landa and Fraile - and the maglia rosa group is 3:30.
We still don't have a full composition of this large 25-man break, but besides Landa, Fraile, De Plus and Anton, we also have Jose Joaquim Rojas (Movistar), Ruben Plaza (Orica-Scott) and Matteo Montaguti (Ag2R-La Mondiale). Oh, and Astana duo Tanel Kangert and Dario Kangert, Maxime Montfort of Lotto Soudal and, yes, it's been confirmed, Andrey Amador of Movistar.
Back with the main field and Tom Dumoulin has Sunweb team-mates Simon Geschke and Georg Preidler with him, so he's no longer as isolated as he initially was on that first climb when things blew apart. He also has Laurens ten Dam in the break around two minutes up the road, so it's hardly a crisis.
ATTACK: Mikel Landa decides that this break is too large and uncoordinated and so bounds clear at the start of the climb, taking Omar Fraile with him. The duo open up a gap over the chasers, who seem to be without Amador now, so perhaps the Costa Rican has dropped back to the peloton.
De Plus and Anton were reeled in by the break after the intermediate sprint - which was won by Anton - and we're now onto the second climb of the day, the Cat.3 Passo della Calla (16km at 5.3%).
CORRECTION: I said that 189 riders took to the start but that was actually 188 because Italian national champion Giacomo Nizzolo, the Trek Segafredo rider who has won the points classification for the past two years, withdrew because of his on-going allergy issues. So once Nathan Haas also called it a day, the field went down to 187.
Before the next climb there's the small matter of the first intermediate sprint at Stia.
The riders continue this long, sinuous descent towards Stia at the foot of the next climb. The gaps are still small but things are fizzing along nicely on this potentially key stage.
One of those Movistar ridrs in the chasing group is Andrey Amador, who is a danger man. The Costa Rican is in ninth place on GC and is an incredibly strong climber - not only is he a threat to many of the favourites, he'll also be a great relay for Quintana.
Intriguingly, there are three Movistar riders in the chasing group - interesting tactics by Nairo Quintana's team. De Plus and Anton still have a small gap, while the pink jersey peloton are 1:45 behind. Dumoulin seems to have a couple of Sunweb team-mates with him now.
De Plus, the rangy Belgian 21-year-old, has dropped Anton near the summit and crests over the top to take the maximum KOM points. His gap is just a few seconds, and then there's another Dimension Data rider - Omar Fraile - before the break come over the top around 15 seconds down. So it's still pretty close - and the main pack then comes at 49 seconds. So the gaps are small for now - although the gruppetto will be further adrift.
Confirmation that Australia's Nathan Haas has withdrawn. So we're down to 188 riders.
The summit of this climb is just 2km away and we have two riders out ahead: Laurens de Plus (Quick-Step Floors) and Igor Anton (Dimension Data). Behind there is a large chasing group, and then we have the reduced peloton of around 40 riders which - as far as we know - contains all the big race favourites, including the maglia rosa Dumoulin.
We've also heard that Nathan Haas of Dimension Data has withdrawn. Yet to be confirmed by his team.
We now have live pictures so we join the stage LIVE and it's Ag2R-La Mondiale who are driving the pace on the front of a large break of around 20-odd riders... It looks complete chaos out there, so we'll try to make some sense of it.
That break came to nothing but the peloton has already been reduced to around 60-odd riders. Tom Dumoulin, the maglia rosa, has lost lots of Sunweb team-mates already...
Costa, who dropped to 18th yesterday after a weak ITT, was joined by a handful of riders, including Mikel Landa of Team Sky. The Basque climber was well poised in this race until that incident with a motorcycle at the foot of Blockhaus on Sunday. He lost 27 minutes that day, and then shipped even more time in yesterday's race against the clock. This morning Landa was 30:38 down and in 42nd place.
On to the Cat.2 Passo dello Consuma (15.9km at 6.1%) and an early move went featuring the Portuguese veteran Rui Costa of Bahrain Merida.
The only stretch of flat road comes at the start of this stage with the 15km run into the foot of the first of four categorised climbs. Four riders zipped clear but were reeled back by the pack.
Our roving reporter Ashley House brought this informal report from Ponte a Ema before the start - with the famous skyline of Florence in the distance with its duomo and those eye-catching red-tiled roofs...
Under a blue sky and bright sun, the 189-strong peloton rolled out of Ponte a Ema this morning about half an hour ago...
Today's start remembers the triple Giro champion and double Tour de France winner, Gino Bartali.
And here's that man Tom Dumoulin looking pretty in pink underneath a pink parasol at the start today, with a fine umbrella pine behind him. That's a nice specimen. I'm sure the lady standing next to him is very special too - let's just hope Tom doesn't give her the elbow as he did to the podium girls (inadvertently) yesterday.
Quintana, who moved onto the race summit after winning Sunday’s first major mountaintop finish at Blockhaus, could only muster the 23rd fastest time – the best part of three minutes behind Dumoulin. Quintana now trails Dumoulin by 2:23 in the general classification with a second Dutchman, Bauke Mollema of Trek-Segafredo, in third place at 2:38. Frenchman Thibaut Pinot (FDJ) dropped from second to fourth on GC, 2:40 down on the new Dutch leader and seven seconds ahead of defending champion Nibali.
Yesterday, Dutchman Tom Dumoulin soared into the maglia rosa at the expense of Nairo Quintana after producing a blistering time trial on a clinical stage 10 at the Giro d’Italia. Team Sunweb’s Dumoulin – third place and 30 seconds adrift ahead of the lumpy 39.8km race against the clock from Foligno to Montefalco – posted a scintillating time of 50:37 to seize the pink jersey from Colombian climber Quintana (Movistar). Geraint Thomas (Team Sky) showed true grit to bounce back from his crash at the foot of Blockhaus to post the second fastest time, 49 seconds slower than the untouchable Dumoulin.
Here's what the riders have to tackle, with the stage kicking off in the Florence suburb of Ponte a Ema - the home town of Italian cycling legend Gino Bartali...
Ciao and welcome to live coverage of stage 11 of the Giro d'Italia - an intriguing 161km ride from Florence to Bagno di Romagna that goes up and down all day and could see some of the favourites caught napping... at least, that's what it looks like on paper, with echoes of that infamous stage to Formigal on last year's Vuelta, where Alberto Contador and Nairo Quintana sprung a surprise on Chris Froome...