Career
He is the United States"s second youngest player to become one, awarded in September 2015. He was awarded the title FIDE Master a year later at the World Youth Chess Championships. Xiong was the runner-up to Jason Cao in the 2012 World Youth Championship U12 category.
His title was confirmed in 2014, when his FIDE rating reached 2400.
He became a Grandmaster after scoring 6/9 at the Chicago Open in 2014, 6/9 at the Utah Dallas Open in November 2014, 7/9 at the Chicago Open in May 2015. Xiong is trained by Babakuli Annakov.
Xiong came second at the United States Junior Closed Chess Championships in July 2015 with a score of 6.5/9 earning a spot in the 2016 United States Chess Championships.