A detailed preview to the third day of action in London by Steve Smythe

From the heptathlon long jump through to the women’s 100m final, here’s a detailed guide to the action on day three of the IAAF World Championships in London.

Want to know what else is coming up? Check out our day-by-day guide here and see the latest edition of AW magazine for full event-by-event previews.

Times stated are local (BST) and were correct at the time of publication.

10:00 – Heptathlon long jump

Katarina Johnson-Thompson and the other medal contenders all jump in Group B.

10:05 – Men’s 3000m steeplechase heats

Only the first three in each heat qualify along with the four fastest losers.

Heat one should be between sub-eight runner Jairius Birech and Morocco’s Soufiane Ek Bakkali who won the Stockholm and Rabat Diamond League. Ethiopian juniors Deriba Tesfaye and Getnet Wale, who are both sub 8:13 runners this year, look the next best.

GB’s Zak Seddon is only 13th fastest and will need to go well inside 8:30 for the first time just to make the top ten.

The world leader and Olympic runner-up Evan Jager heads heat two entries. Eritrean teenager Yemane Hailesilassie could also be among the qualifiers along with France’s Yohann Kowal and Ethiopia’s Tafese Seboka.

Also in the field is the world’s greatest ever steeplechaser Ezekiel Kemboi, who has won the last four World Championships and won three silvers before that but he has the second slowest time of the 15 entries and has shown no form this year.

The slowest is the much improved Ieuan Thomas. The Welsh athlete will be another Brit who will be doing well just to get near 8:30 in his first Championships.

The best heat on paper is the final one. The Olympic champion Conseslus Kipruto should win but also in the field are the three-time Olympic silver medallist Mahiedine Mekhissi-Benebbad and the 2008 Olympic champion Brimin Kipruto.

The sub-8:10 American Stanley Kebenei and another former Kenyan Hillary Bor also compete. One interesting competitor is 16-year-old European junior champion Jakob Ingebritsen.

Three-time UK steeplechase champion Rob Mullett ran 8:22.42 last year but will need well in excess of that just to sneak through by time qualification.

10:40 – Men’s pole vault qualifying

A very tough 5.75m is needed for automatic qualification though it may well go down to just the top 12 as only once in World Championships history has even a 5.70m failed to qualify.

Olympic champion Renaud Lavillenie is under pressure and out of form but should qualify along with defending champion Shawn Barber, world leader Sam Kendricks and former champion Pawel Wojciechowski. Also watch for Sweden’s world junior record-holder Armand Duplantis.

No Britons qualified.

10:55 – Men’s marathon (start Tower Bridge)

Kenya’s London Marathon winner Daniel Wanjiru starts marginal favourite though Rio Olympic 10,000m bronze medallist Tamirat Tola ran 2:04:11 this year in Dubai. World junior record setter Tsegaye Mekonnen and Kenyans Gideon Kipketer and Geoffrey Kirui stand out as the next best.

Japan have a trio of 2:08 performers but it is hard to look beyond Kenya and Ethiopia for the medals.

If he was in his Rio or winter form Callum Hawkins would be a medal challenger but he is short of racing.

Josh Griffiths and Andrew Davies will be doing well too achieve times in the vicinity of 2:15 which might get them a top-40 place in the 100 strong field. Read more here.

11:05 – Men’s 400m hurdles heats

The first four qualify automatically along with four fastest losers.

Heat one will see Olympic champion Kerron Clement as clear favourite. Also in the field are two-time world runner-up Javier Culson and Jamaica’s Kemar Mowatt.

The second heat sees world-leader Kyron McMaster up against Jaheel Hyde and TJ Holmes. Ireland’s Thomas Barr, who was fourth in Rio, also competes but hasn’t shown the same form as 2016 this year.

Heat three features Olympic bronze medallist Yasmani Copello and another European champion in Kariem Hussein. Qatar’s Abderrahaman Samba, who has run 48.31 this year, should also qualify.

The fourth heat should be between European under-23 champion Karsten Warholm and American Michael Stigler.

The fifth and final heat will probably go to American Eric Futch. Mamadou Kasse Hann should qualify and Britain’s Jack Green has a great chance of making it through.

11:45/13:00 – Heptathlon javelin

Johnson-Thompson goes in the weaker Group B, throwing earlier. The other heptathlon leaders mostly go in Group B over a hour later.

11:55 – Women’s 400m heats

Qualification is the first three from each heat plus the six next fastest by time.

Defending champion Allyson Felix goes in lane one in heat one with Poland’s Justyna Swiety another possible qualifier.

Olympic champion Shaunae Miller-Uibo should be out on her own in heat two. Stephenie Ann McPherson looks an equally clear second choice. Third place is more open with Britain’s Emily Diamond a chance of being in the mix if she can improve her season’s best.

The third heat sees Shericka Jackson as clear favourite though Botswana’s Lydia Jele has run 50.32 this year.

The fourth heat could see another Jamaican win with 2007 world runner-up Novlene Williams-Mills still in sensational form though American Phyllis Francis is quicker this year.

Quanera Hayes will almost certainly dominate heat five with Patience George second fastest. Zoey Clark has improved significantly this year and could well snatch the third spot.

The final heat will probably be between American Kendall Ellis and Jamaica’s Chrisann Gordon. Former champion Amantle Montsho could challenge for the third spot. Anyika Onoura would need a big improvement on 2017 form to also be in the mix.

13:15 – Men’s 110m hurdles heats

The first four in each heat plus the next four fastest times qualify for the semi-finals at 20:10.

Olympic champion Omar McLeod should head heat one with USA’s Aleec Harris and Hungary’s Balazs Baji likely to follow him. David Omoregie will need to be at his best to progress.

The second heat might be between USA’s Devon Allen and France’s Garfield Darien. Britain’s David King is the equal slowest of the field.

World record-holder Arles Merritt should be to the fore in heat three with Antonio Alkana and Shane Brathwaite following him home.

The fourth heat looks likely to match up Jamaican Ronald Levy and Britain’s Andy Pozzi.

Defending champion Sergey Shubenkov is in heat five where he can expect a challenge from Orlando Ortega and Hansle Parchment.

14:00 – Women’s marathon

Ethiopia field a strong quartet headed by defending champion Mare Dibaba. Shure Demise, Berhane Dibaba and Aselefech Mergia are also all potential medallists.

Two-time winner Edna Kiplagat goes for her third world title and heads the Kenyan team with 2015 runner-up Helah Kiprop and 2014 Commonwealth champion Flomena Cheyech completing their trio.

Bahrain’s Eunice Kirwa – 2:21:17 this year – could challenge the usual Kenyan-Ethiopian dominance.

The British trio of Alyson Dixon, Charlotte Purdue and Tracy Barlow will also be chasing PBs and potential top 40 places among the 92 runners.

19:00 – Women’s pole vault final

Greece’s Ekaterini Stefanidi, Cuba’s Yarisley Silva and American Sandi Morris start marginal favourites though Britain’s Holly Bradshaw has every chance is she can match her British best.

New Zealand’s Eliza McCartney looks the best of the rest.

19:05 – Women’s javelin qualifying (Group B, 20:30)

63.50m is required for automatic qualification or alternatively the best 12.

Group A is headed by Olympic champion Sara Kolak and European champion Tatsiana Khaladovich.

Group B (throwing 85 minutes later) is headed by double Olympic champion Barbora Spotakova who was also third in Rio.

Martina Ratej and Australian Kathryn Michell should comfortably join the Czech in the final.

19:10 – Women’s 100m semi-finals

The first two and the two fastest losers gain a place in the final.

The favourites will be 2015 runner-up Dafne Schippers, world fourth placer Marie-Josee Ta Lou and American Deejah Stevens. Daryll Neita will require a PB to progress but look impressive in the heats.

In the second semi, Olympic champion Elaine Thompson is favourite. Brazil’s Rosangela Santos, who won her heat, might be the best of the rest. Desiree Henry only progressed as a fastest loser to this stage and doesn’t look in her best form.

The final semi will see Olympic medallist Tori Bowie as favourite while heat winner Gina Luckenkemper should be battling Natasha Morrison and Murielle Ahoure for the final automatic spot.

Asha Philip was close to her PB in the heat but will need to go much faster to make the final.

19:40 – Men’s 400m semi-finals

The first semi should be contested between heat winners Steven Gardiner and USA champion Fred Kerley with Wilbert London the next most likely challenger. Dwayne Cowan did brilliantly to get this far but is the slowest in the heat.

The second semi will be dominated by world record-holder Wayde Van Niekerk with Baboloki Thebe a likely second favourite with Lashawn Merritt not at his best. Olympic finalist Matthew Hudson-Smith goes in lane two after edging into the final as a fastest loser and will need a much better paced run to repeat his Brazilian feat. Ireland’s Brian Gregan also competes.

The third semi should see Isaac Makwala out on his own with Gil Roberts the most likely runner-up.

20:10 – Men’s 110m hurdles semi-finals

The draw won’t be known until after the earlier heats

20:35 – Men’s shot put final

This should be a great contest with Olympic champion Ryan Crouser favourite but any one of a half dozen could win

However, also watch for Olympic medallist Tomas Walsh, former champion David Storl and defending champion Joe Kovacs.

Tomas Stanek has thrown 22 metres this year and European silver medallist Michal Haratyk is also in form.

20:40 – Heptathlon 800m

The draw won’t be known until the afternoon.

21:15 – Men’s 800m semi-finals

The first two and the two fastest losers qualify.

Heat one has both Guy Learmonth and Elliot Giles in after their impressive heats, though 2012 runner-up Nijel Amos is favourite alongside Ferguson Rotich and former medallist Adam Kszczot. Giles could be a factor though if it goes down to finishing speed.

World leader Emmanuel Korir is expected to dominate the second semi. Brandon McBride could follow the Kenyan home. Kyle Langford was lucky to make it through to here as a fastest loser and now has nothing to lose.

The final semi-final looks likely to see a battle between Kipyegon Bett, Pierre-Ambroise Bosse and Donovan Brazier.

21:50 – Women’s 100m final

The draw will be known after the semi finals and Elaine Thompson is a clear favourite for gold.

» To find out what else is coming up, check out our day-by-day guide here, while our medal predictions can be found here. See the latest edition of AW magazine for full event-by-event previews, interviews, news, a form guide and more