Complex sentence: He claimed the lead in the championship following this win, and would not relinquish it for the remainder of the season, clinching the inaugural Moto2 World Championship at the Malaysian Grand Prix with three rounds to spare.
Split into simpler sentences: He claimed the lead in the championship following this win, and would not relinquish it for the remainder of the season. He clinched the inaugural Moto2 World Championship at the Malaysian Grand Prix with three rounds to spare.