Complex sentence: In 2007 Weir won his third London marathon beating Australian Paralympic champion Kurt Fearnley by one second in a time of 1:30:49, the second fastest time seen on the London course.
Split into simpler sentences: In 2007 Weir won his third London marathon. He beat Australian Paralympic champion Kurt Fearnley by 1 second in a time of 1:30:49, the second fastest time seen on the London course.