Weekend Preview: Swimmers have sunk but expect GB medals to flow

The main event on what could be a glorious weekend for British athletics is the culmination of the women's heptathlon. After a strong start from Jessica Ennis, and a surprisingly good one from Katarina Johnson-Thompson, the heptathlon has its final events tonight.

The long jump is first at 10.05am, before the javelin at 11.40am and the concluding 800m at 8.35pm, which could see Ennis crowned champion amid remarkable celebrations.

Soon after that at 9.15pm there is the men's 10,000m, with Mo Farah among the favourites. Christopher Thompson will also be competing for Britain. Earlier, at 7.55pm, there is the men's long jump final which might well include Greg Rutherford or Chris Tomlinson. Abiodun Oyepitan and Anyika Onuora could have a chance in the women's 100m final at 9.55pm.

In the velodrome, Britain's women's Team Pursuit trio, who qualified brilliantly last night with a world record, have their first round and final. The latter for Laura Trott, Dani King and Jo Roswell is expected at 5.42pm.

Britain has some chances for medals in the last day at the Aquatics Centre. Fran Halsall has a good chance in the women's 50m freestyle at 7.30pm, as might Amy Smith. After that the men's 1500m freestyle final will include Daniel Fogg, before a British team competes for the men's 4x100m medley relay at 8.07pm and at Eton Dorney, the rowing finishes too with Britain in the men's fours at 11.30am. Then Katherin Copeland and Sophie Hosking row in the women's lightweight double sculls final at 11.50am before Zac Purchase and Mark Hunter in the men's event.

Beyond all that, there is the women's triathlon starting at 9am, including Lucy Hall, Vicky Holland and Helen Jenkins. Then there are outside chances for Jennifer McIntosh in the women's 50m rifle, Charlotte Kerkwood in the women's trap and Peter Kirkbride in men's weightlifting in the 94kg category.

Tomorrow the action continues in the track and field. Christine Ohuruogu has the women's 400m final at 9.10pm, and she could well be joined there by Shana Cox and Lee McConnell depending on today's semi-finals. Adam Gemili, Dwain Chambers and James Dasaolu could all compete in the 100m semi-final and final if today's qualification goes well.

Yamile Aldama will be in the women's triple jump final at 7.35pm, before Alexander Smith will be competing in the men's hammer final at 8.20pm.

Louis Smith and Max Whitlock, stars of the team gymnastics event, have their individual pommel horse final tomorrow afternoon at 3.41pm. Smith won bronze in this event four years ago.

Ben Ainslie can win his fourth gold medal and his third in the Finn class with his medal race at 2pm.

At the velodrome, Edward Clancy competes in the men's omnium which ends with the 1km time trial at 6.16pm. In fencing, Britain competes in the men's team foil, with a final scheduled for 3pm. They start with a last-16 tie with Egypt at 9am.