Complex sentence: In High school, Pingris tried to play in their school try-outs but he was not accepted, but when he was in 2nd year he was finally accepted to their school's Varsity Team.
Split into simpler sentences: In high school, Pingris tried to play in their school try-outs, but he was not accepted. When he was in 2nd year, he was finally accepted to their school's Varsity Team.