Ciao ragazzi! Welcome to live coverage of the 102th edition of the Giro d'Italia. We're in Bologna for the opening time trial - a 8km race against the clock with a sting in the tail in the form of a savagely steep climb up to the Santuario di San Luca.

I should point out that the bottom placed rider at the moment is Japan's Hiroki Nishimura of Nippo-Vini Fantini, who was a huge 4:36 down on Roglic.

Sivakov has passed his minute-man Davide Cimolai on the climb.

Domenico Pozzovivo, who is usually a safe bet for a top 10 in the Giro, is next to get going. He crashed badly in the Fleche Wallonne and was concussed so it remains to be seen how he goes today - his primary role will be to support teammate Vincenzo Nibali over the next few weeks, but you never know what may happen.

Talking of Bernal - the Colombian withdrew last week because of a broken collarbone. But in 1956, when the race first came to this climb, the Italian veteran Fiorenzo Magni rode it with a broken collarbone, biting down on an inner tube wrapped round his handlebars to help steer and ease the pain... Read more below.

Carapaz, the youngster from Ecuador who finished fourth overall last year, came home in the same time as Tanel Kangert and Britain's Hugh Carthy. Meanwhile, Pavel Sivakov is 13 seconds down after the flat as he hits the climb. He won the Tour of the Alps a fortnight ago and so is hitting some good form in a race which he only expected to have a support role until Egan Bernal pulled out.

Then, the rest of the top 10 is like this: 6. Laurens de Plus +35, 7. Damiano Caruso +40, 8. Victor de la Parte +45, 9. Bob Jungels +46, 10. Richard Carapaz +47.

An exhausted Tao Geoghegan Hart has this to day after his rider: "That was super good until the last few hundred metres when I went backwards. I felt so, so good then all of a sudden the devil came and hit me with a big hammer. Perhaps I went off a little bit too keen."

Reminder of the top five at the moment: 1. Primoz Roglic 12:54, 2. Vincenzo Nibali +23, 3. Miguel Angel Lopez +29, 4. Tom Dumoulin +28, 5. Tao Geoghegan Hart +35.

Pavel Sivakov of Team Ineos rolls down the ramp. Meanwhile, it's sixth place for Damiano Caruso, who crosses the line just as he reels in Thomas De Gendt of Lotto Soudal.

There's going to be a huge lull in this time trial before the remaining big names get going. Pavel Sivakov is off in a few minutes, shortly followed by Domenico Pozzovivo. Then we'll have the likes of Bauke Mollema, Jan Polanc, Ben O'Connor, Esteban Chaves and Ivan Sosa, Ineos's exciting Colombian climber. But all eyes will be on Simon Yates when he gets going at 18:43 UK time - still more than an hour away.

Geoghegan Hart comes home 35 seconds down on Roglic and that's not bad considering how good the Slovenian was.

Britain's Tao Geoghegan Hart (Team Ineos) is zigzagging his way up the climb. He's going to ship a fair bit of time today. Following the withdrawal of Egan Bernal, the team formerly known as Sky have put out a young and inexperienced but very exciting squad for the Giro - with Tao co-leader with the Tour of the Alps winner Pavel Sivakov.

Here's an insight to how steep the climbs - although it's currently lined with a throng of fans. Diego Ulissi the latest rider to come home, but 50 seconds down on Roglic.

Mikel Landa is going to be over a minute down on Roglic... blimey, this is crazy: the Spaniard comes home in 14:01 so that's 1:07 down on the current leader. Ilnur Zakarin was even slower - he's 1:20 down. Campenaerts was 53 seconds down.

Roglic almost catches Demare before the finish - but no matter, he's absolutely smashed it! The Slovenian comes home in a time of 12:54. That's a whopping 23 seconds faster than Nibali and 28 seconds quicker than Lopez and Dumoulin.

Roglic has caught his minute-man on the climb - Amaro Antunes of Portugal. It's all about Roglic, Landa and Yates now... do they have what it takes to beat Nibali?

Vincenzo Nibali is going well as he hits the flat part after the climb - and he's in the lead! A time of 13:17 puts the Shark five seconds clear of both Lopez and Dumoulin...

Victor Campenaerts, the Belgian who beat Bradley Wiggins' Hour Record last month, is on the climb now. He'd usually be one to watch but this climb will make it hard for the Lotto Soudal rider.

It's provisional third for Bob Jungels who comes home in 13:40. That's 18 seconds down on Lopez and Dumoulin.

Formolo comes home in 13:44 so a bit off the pace for the Italian.

Meanwhile, Primoz Roglic is onto the climb now. Roglic has won every stage race he's done this year – the UAE Tour, Tirreno-Adriatico and Tour de Romandie – and came fourth in his maiden Tour de France last year off the back of three smaller stage race wins. Three victories in Romandie – over rolling terrain, a summit finish, and an ITT – shows that he should be the man to beat.