The first of the 2010 Semi Finals from Owlerton Stadium, Sheffield. 515 Frankie Wainman Jnr books himself a front row start for the World Final by taking a convincing win. Wainman has been struggling with the switch to Goodyear tyres in 2010, but finds just what he needs when it mattered most. 2 Paul Harrison is hassled by 4 Dan Johnson in the early stages of the race, but eventually manages to break free and give himself some breathing space. Johnson was to take an unchallenged 3rd place. Possi…