Usain Bolt targets 9.4 seconds in Olympic 100m while Team GB aims for eight medals at London 2012, as marathon runners prepare for key competitions and British motorsport riders gear up for the season ahead.

Usain Bolt has set ambitious targets for the London 2012 Olympics, aiming to run 9.4 seconds in the 100m and 19 seconds in the 200m to "amaze" the world with his performances.

UK Athletics head coach Charles van Commenee expressed confidence that the British team can achieve its target of eight medals at the London Olympics despite competitive international field.

UK Athletics is purchasing tickets to guarantee that athletes' friends and families will have the opportunity to watch them compete at the London 2012 Games, addressing accessibility concerns.

Emmanuel Mutai is determined to defend his London Marathon title on Sunday despite recovering from typhoid contracted last month, demonstrating his commitment to the race.

Haile Gebrselassie has abandoned his Olympic dream and will not compete in the London 2012 marathon, marking the end of a legendary career ambition for the former world record holder.

Guernsey runner Lee Merrien is in peak form as he attempts to qualify for the Olympics through Sunday's London Marathon, hoping to secure his place on the team.

Olympic 400m hurdles gold medal hopeful Dai Greene confirmed his Diamond League season will begin in Rome on May 31, launching his campaign toward London 2012.

In a notable half marathon matchup in Vienna, Haile Gebrselassie outpaced Paula Radcliffe in their "Emperor versus the Queen" race, showcasing continued competitive excellence.

British riders are poised to mount serious challenges for the Moto2 and Moto3 titles during the 2012 season, with fierce competition expected outside the top MotoGP class.