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Bautista has a 69-point lead over Razgatlioglu after only four rounds of the championship and had scored more than double the amount of points as six-time champ Jonathan Rea.
After a hat-trick of victories in the Netherlands, Alvaro Bautista and the WorldSBK, WorldSSP and WorldSSP300 teams arrive at Catalunya, a circuit where he cleaned up with three wins last year.