Guan qualified for the 2013 Masters Tournament by winning the 2012 Asia-Pacific Amateur Championship in Thailand.

On 12 April 2013, he became the youngest player to make the cut in PGA Tour history and play in 2013 Masters.

At 14 years, 5 months of age, Guan is the youngest to make the cut in a major championship.

[2] Before the tournament, Guan played practice rounds with Ben Crenshaw and Tiger Woods, both of whom were full of praise for the youngster.

"[3] Speaking of the experience, Guan said, "Each time I play with him I feel a lot better and give myself some confidence and it's very good.