Usain Bolt targets sub-9.4 second 100m at London 2012 Olympics while British athletes prepare for Games with medal targets and marathon competitions underway

Usain Bolt aims to 'amaze' the world at London 2012 by running 9.4 seconds in the 100m and 19 seconds in the 200m, setting ambitious new targets for the Olympics.

UK Athletics head coach Charles van Commenee expresses confidence that the British team can achieve its target of eight medals at the London Olympics.

UK Athletics will purchase tickets to ensure athletes' friends and families can attend and support them during their performances at the London Olympics.

Emmanuel Mutai is determined to defend his London Marathon title on Sunday despite recently recovering from typhoid fever last month.

Former marathon world record holder Haile Gebrselassie has abandoned his dream of competing in the London 2012 Olympic marathon.

Guernsey's Lee Merrien is in peak form preparing to use Sunday's London Marathon as a qualifying opportunity for the Olympics.

Olympic 400m hurdles gold hopeful Dai Greene confirms his Diamond League season will commence in Rome on May 31, beginning his preparation for the Games.

Haile Gebrselassie defeats Paula Radcliffe in a competitive half marathon showdown in Vienna billed as 'Emperor versus the Queen'.

British riders are intensifying their competition for Moto2 and Moto3 titles in the 2012 MotoGP season, with fierce racing expected outside the top class.