Complex sentence: In high school at Christ School, he helped lead the team to three state championships and a record of 99--8 over his last three years, and earned a silver medal at the FIBA Americas Under-18 Championship.
Split into simpler sentences: In high school at Christ School, he helped lead the team to three state championships and a record of 99--8 over his last three years. Earned a silver medal at the FIBA Americas Under-18 Championship.