It's close.... Asha Philip is looking up at the screen awaiting the verdict...

Two out of three for Great Britain's 100m specialists. Can Asha Philip, a former junior world champion, make it a full house? She is up next and will try and see off Bulgaria's Ivet Lalova and Germany's Verena Sailer.

Colin Jackson
Two-time world 110m hurdles champion and BBC Sport athletics expert

On Henry's impressive display: "You're young and inexperienced and up against some of the best sprinters in the world, and then after a great display, all of a sudden you throw yourself into a major final."

Image source, AFP

The wind has made its first cameo in tonight's track action. The lane markers started migrating behind the athletes as they settled into their blocks before the start of that second semi-final. The starter kept his calm and set them running rather than re-setting the race.

Dafne Schippers gives Desiree Henry a high five to celebrate their qualification.

Yes, she can! Desiree Henry claims second behind Dafne Schippers and will have another run at the Dutchwoman in tonight's final.

Right, can team-mate Desiree Henry, who clocked a PB of 11.21 in the heats, follow Ashleigh Nelson into the final? The 18-year-old will be up against it with German champion Tatjana Lofamakanda Pinto and flying Dutchwoman Dafne Schippers either side of her.

Tom Fordyce
Chief sports writer in Zurich

"Before we get to the men's 100m semis - and with every gust of wind and big-name withdrawal, the experience of Dwain Chambers could prove more critical - Britain's women sprinters are looking to continue their impressive summer.

"All of them are on the up - 18-year-old Desiree Henry, who was one of the seven young athletes who lit the Olympic cauldron at London 2012; 23-year-old Ashleigh Nelson, with a new PB in the heats; and then Asha Philip, even if her former sideline in trampolining is now on long-term hold."

Will Mo Farah win gold in the 10,000m tonight?

Now's your time to tell us via the Yes or No buttons on this page. Let's see those fingers...

Image source, AFP

Nelson's raking stride carries her safe and secure into tonight's final. She is second behind France's Myriam Soumare in a swift 11.23 into a headwind of 1.9m/s.

Time for the women's 100m semi-finals. Great Britain's Ashleigh Nelson ran a new personal best of 11.19 second in Tuesday's heats and is up in the first....

Georgia Gillard:, external "They should do the long jump in this wind. They could get some insane distances."

Brian Whittle:, external "Scotland gets a hard time for the weather but we didn't have to delay the Commonwealth Games like they have in Zurich."

Shereen Clarke:, external "Just seen a replay of the 10k race last night #bbceurochamps. Bow down to a true champ @jopavey. What an athlete."

Steve Cram
BBC athletics commentator

"When you become a world star at his level, you've got commercial decisions to make and decisions as to how you organise your life away from the track.

"At times Mo Farah lost his way a little bit and that experiment with the marathon has helped him underline that the track is where he wants to be. This is where it all started for him.

"He says he's not finished with the marathon 100 per cent, and that he'd like to revisit it after Rio. The track is where he feels he wants to focus his attentions for the next couple of years."

Mo Farah is prancing around the practice track with a Cheshire Cat grin, chatting to his a couple of his rivals.

We are expecting his final to get under way at about 19:30 BST, but there is a large pinch of salt.

Image source, Getty Images

Niall Flannery wasn't in it at 200m, wasn't in it at 300m and....still wasn't in it at 400m. A distant sixth.

Rasmus Magi wins at a canter in a time of 48.54. Russia Timofey Chalyy is second in 48.69.

It is curtains for Thomas Barr of Ireland as well.

In a fast heat Felix Franz of Germany and Oskari Moro hoover up the two fastest loser spots.

The third semi-final contains Great Britain's best hope of making the 400m hurdles final. National champion Niall Flannery won his heat in some style, but his reward was a semi crammed with white-hot opposition. Europe's number one, Estonian Rasmus Magi and Belgium's Michael Bultheel will be after him.

Image source, Reuters

A very popular win for Switzerland's Kariem Hussein who is cheered to the rafters by the locals. Plenty of Swiss flags in evidence. The only square national flag in the world I believe. Correct me if I'm wrong.

Serbia's Emir Bekric takes second, a dip ahead of Ireland's Thomas Barr. Barr clocks 49.30 which has him in the second and final fastest loser spot, nudging out Sebastian Rodger from the first semi.

Tom Burton is fifth and out in a time of 50.47.

The second of the 400m hurdles semi-finals is being announced to the crowd. Great Britain's Tom Burton is the last name to be read out, stationed on the outside in lane eight.

The man to look out for may be Ireland's engineering student Thomas Barr who won his heat in impressive style.

The first decathletes have taken to the skies in the pole vault. Everyone has fallen safely out of the swirling gusts and back on the matt.

Great Britain's Ashley Bryant who struggled on the first day of competition, after competing in the Commonwealth Games just a few days before, has already dropped out of the event.

Sebastian Rodger comes home fourth and will be waiting on one of two fastest loser places in the final. It doesn't look good for him.

Russia's Denis Kudryavtsev wins in 49.09 seconds with Germany's Varg Konigsmark second in a personal best of 49.12 seconds.

Right, nearly an hour later than advertised, our first track event of the evening is ready for the off.

In the first of three 400m hurdles semi-final, Great Britain are represented by Sebastian Rodger. Denis Kudryavtsev and Varg Konigsmark are likely to be his strongest rivals for the two automatic qualifying spots.