"I believe in good preparation and planning and if I stick to that the 25 seconds will come."

Sportswear giant Nike has divided opinion with claims that advanced technology can combine with training and talent to change the face of athletics. Mitch Phillips reports

The Boston Marathon is due to be held amid unprecedented security, one year after a pair of home-made pressure-cooker bombs killed three people and wounded more than 260 others.

Race organisers say the London Marathon will go ahead on Sunday despite two people being killed after three explosions brought a tragic end to its Boston equivalent today.