An outfielder, he is one of the most consistent hitters in the KBO, having hit above .300 ten years in a row (from 2010 to 2018), and winning the KBO League Golden Glove Award four consecutive times.[2] His .322 lifetime batting average ranks in the top ten all-time for the KBO.
Son attended Busan High School.[2] He led the KBO League in hits in 2012 and 2013.[2]