|Born||October 30, 2000|
|FIDE rating||2675 (November 2018)|
|Peak rating||2674 (February 2017)|
Jeffery Xiong (born October 30, 2000) is an American chess grandmaster. He is the third-youngest grandmaster in the US (after Awonder Liang and Samuel Sevian), having been awarded the GM title in September 2015 at age fourteen.
Xiong was aged seven when he played in his first tournament, quickly achieving the USCF title 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 at the 4th Annual Golden State Open in January 2013, 5/9 at the UT Dallas Spring FIDE Open and 5.5/9 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 6.5/9. 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.
- Jeffery Xiong rating card at FIDE
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- "Jeffery Xiong and Dinara Saduakassova are 2016 World Junior Champions". Chessdom. 2016-08-21. Retrieved 2016-11-09.