|Born||October 30, 2000|
|FIDE rating||2692 (December 2022)|
|Peak rating||2712 (November 2019)|
|Ranking||No. 45 (December 2022)|
|Peak ranking||No. 30 (August 2021)|
|Follower and view counts updated as of November 23, 2022.|
Jeffery Xiong (born October 30, 2000) is an American chess prodigy. He is the fourth-youngest in the US (after Abhimanyu Mishra, Awonder Liang, and Samuel Sevian) to qualify, at age fourteen, for the title Grandmaster, which FIDE awarded him in September 2015.
Xiong was aged seven when he played in his first tournament, quickly achieving the USCF title of expert on August 22, 2009. He was awarded the title FIDE Master a year later at the World Youth Chess Championships, where he was the runner-up to Jason Cao in the U10 category.
Xiong achieved his norms required for the title International Master by scoring 6/9 points at the 4th Annual Golden State Open in January 2013, 5/9 at the UT Dallas Spring FIDE Open and 5½/9 at the Annual Philadelphia Open, both in March 2013. His title was confirmed in 2014, when his FIDE rating reached 2400.
Xiong came second at the US Junior Closed Chess Championships in July 2015 with a score of 6½/9. He won the 7th Saint Louis Grandmaster Invitational 2015 with a score of 7/9. He later received the organizer's wild card invitation to the 2016 US Chess Championship, where he finished 6th out of 12 players, with 1 win, 1 loss, and 9 draws.
In February 2016 he entered the top ten players in the world under age 20, and a month later he reached a FIDE rating of 2600 for the first time.
In July 2016, Xiong won the B group ("Premier") of the Capablanca Memorial and the US Closed Junior Championship. The following month, he won the World Junior Chess Championship, held in Bhubaneswar, India with a round to spare. He finished with an undefeated 10.5/13, a point ahead of Vladislav Artemiev.
In March 2018, Xiong won the St. Louis Spring Classic A group, a round-robin tournament of category XVII, with an unbeaten score of 6½ points (4 wins, 5 draws) out of 9, 1½ points clear of the field. His performance rating was 2819. One year later, he won again with an unbeaten 6/9 score (3 wins, 6 draws), half point clear of second-placed Illia Nyzhnyk.
In September 2019, Xiong participated in the FIDE World Cup. Seeded 31st in the tournament, he made it to the quarterfinals by beating Igor Lysyj, Parham Maghsoodloo, Anish Giri and Jan-Krzysztof Duda. Xiong was then eliminated by the eventual winner, Teimour Radjabov
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