Complex sentence: Dixon raced to three victories in seven final rounds in 2005 clocking a career-best elapsed time (4.481s) at Pomona 1 and also posted three No.1 qualifying positions.
Split into simpler sentences: Dixon raced to three victories in seven final rounds in 2005. He clocked his career-best elapsed time at Pomona 1 (4.481s) and also posted three No.1 qualifying positions.