Complex sentence: Richie played darts as a junior but then left the game, he qualified for the televised stages of the 2012 Winmau World Masters, but lost to Thomas Junghans 3--1 in the last 32.
Split into simpler sentences: Richie played darts as a junior, but then left the game. He qualified for the televised stages of the 2012 Winmau World Masters, but lost to Thomas Junghans 3--1 in the last 32.