Complex sentence: Nathan Astle is also a competent soccer player, who played for Rangers A.F.C. in Christchurch, and is also a regular competitor at Ruapuna Speedway, Christchurch.
Split into simpler sentences: Nathan Astle is also a competent soccer player, playing for Rangers A.F.C. in Christchurch. He is also a regular competitor at Ruapuna Speedway, Christchurch.