A personal best 45.58 secs by Chris Brown was enough for silver, while America's Kyle Clemons (45.74 secs) took bronze.

A confident performance by Pavel Maslak who led coming into the final lap and the Czech, puffing out the cheeks as he approaches the line, finishes ahead of Chris Brown in 45.24 seconds, which is a national indoor record.

Three track events to go and soon it will be just two because the men's 400m final is about to start. A broad smile from reigning European champion Pavel Maslak as he is introduced to the crowd. No smiles from Chris Brown from the Bahamas, who is on Maslak's outside. A stern-looking Brown means business.

Image source, Getty Images

The 2005 world marathon champion Paula Radcliffe has been discussing Mo Farah's first attempt at the London Marathon with Phil Jones. Here is what she had to say: "He likes going away to Kenya. He knows he can focus on his training. He has been quite enjoying being in that environment. It's a new challenge when you come in as double world and double Olympic champion. You can go in with nothing to lose, although there are expectations. You can do as many tests, but you need to run one to see if that's the event for you."

The pole vaulters have cranked the bar up to 5.80m and that height poses no difficult to Konstandinos Filippidis who sails over on attempt numero uno. A season's best performance by the Greek who currently leads the competition. Germany's Malte Mohr is the only other man to have cleared the height.

All eight athletes in the men's long jump have had two attempts at jumping into the sandpit and, so far, it's China's Jinzhe Li who has jumped the furthest. In fact, his best leap of 8.23m is 10cm better than his nearest rival, Louis Tsatoumas of Greece.

Image source, Reuters

The next track event will be the men's 400m final at 1930 GMT, which gives us plenty of time to catch up with what has been happening in the field. Russia's Maria Kuchina and Poland's Kamila Licwinko share the lead in the women's high jump as both athletes needed just the one attempt to clear 2.00m.

News of Luke Cutts's abrupt departure interrupted me just as I was about to tell you that Ethiopia's Aman Wote (3:38.08) won silver in the men's 1500m. I was also going to say that Adbalaati Iguider (3:38.21) secured bronze for Morocco.

iaaforg:, external Morocco's Rababe Arafi has been disqualified from the women's 1500m for a lane violation. It means Canada's Nicole Sifuentes moves into bronze.

A disappointing day for Luke Cutts, tipped for a medal after a promising start to the season. The Briton fails with all three attempts at 5.75m, bringing his championships to a premature end.

Ayanleh Souleiman is leading as the final bell rings and the man from Djibouti is pumping those legs, kicking away at the final bend and extends his advantage over his nearest rivals, celebrating wildly as he crosses the line.

The next gold medal to be decided on the track is the men's 1500m final and Djibouti's Ayanleh Souleiman, the joint-fastest runner of the year so far coming into these championships, has set the early pace and leads with five laps to go.

A flawless performance so far by Greece's Konstandinos Filippidis and Germany's Malte Mohr as they have yet to fail at any height. First-time clearances at 5.75m by the joint leaders. It will be a nervy third attempt at 5.75m for Luke Cutts, but the Briton is accustomed to that.

iaaforg:, external All five of @ValerieAdams84's throws landed past the 20-metre line; a feat achieved by no other finalist today.

Denise Lewis
BBC Sport athletics pundit in Sopot

"Adams is the best of the best. Because of the event, she doesn't get the recognition she really, really deserves. She's dominated the event for so many years."

Appropriately, Cool And The Gang's 'Celebrate Good Times' rings around the arena as we learn that Valerie Adams's 20.67m effort, a world leading distance, was a touch too far for her rivals. Germany's Christina Schwanitz (19.94m) will leave Poland with a silver medal. Bronze? That went to China's Lijiao Gong (19.24m).

Francena McCorory was the slowest of the finalists to react from the blocks, but the American made up for it, overtaking her rivals at the bell to canter home. Jamaica's Kaliese Spencer (51.54 secs) won silver for Jamaica while Shaunae Miller (52.06 seconds) clinched bronze for Bahamas.

Colin Jackson
BBC Sport athletics pundit in Sopot

Image source, Getty Images

"Francena had a turn of speed that nobody else in the field had. She used it down the back straight. She just kept going away."

There is a new 400m champion and she is Francena McCorory, who continues America's fine tradition in this event. The 25-year-old secures gold in 51.12 seconds.

The starter calls for hush which means the women's 400m is about to start. Deep breaths from America's Francena McCorory. There will be a new champion because Sanya Richards-Ross is not here.