According to Official Guinness Records,
Guan Tianlang (China, b. 25 October 1998) became the youngest player to make the cut at the 77th US Masters when, on 13 April 2013, aged 14 years 171 days old, he made the cut with 4 over par after 18 holes. Guan was also the youngest golfer to play at the US Masters at Augusta National Golf Club, Augusta, Georgia, USA, in 2013. Guan's final score was 300 (73, 75, 77, 75).
For a complete list of 2013 records, please visit 2013 Guinness Records in United States.