Jason Cao learned the game at age 6 and played at the World Youth Championship (2012) in the U-12 category after tying with Joseph F Bellissimo for shared 1st-2nd place at the 2012 CYCC(14) (ahead of Nicholas Lee, Lukas Cheung and Richard Chen who trailed by 1.5 points in 3rd-5th place). Upon entering his 1st internationally rated tournament, FM Cao picked up a title by winning the World Youth under-10 chess championship in 2010 on tie-breaks (+8-1=2). He scored a draw to start the tournament, then went on a 7 game winning streak, until he met Jeffery Xiong (the runner-up) in the 9th round. Canadian Women's Candidate Master Jiaxin Dora Liu seems to have picked up a FIDE title of her own at a slightly younger age.
He tied for share of 1st-4th at the Canadian U-14 Youth chess championship in 2013 and tied for share of 2nd-3rd in the 2014 Keres Memorial (held in British Columbia, behind Georgy Orlov, equal with Dietmar Kolbus and ahead of both John C Yoos and Alfred Pechisker - both of the latter finished with 4/5).
In 2010 in Victoria, British Columbia, he won his city's grade 4-7 Junior Championship with 5/5 and tied for 1st-3rd in the Canadian Youth U-10 chess championship with 5.5/7. In 2011, he tied for 2nd-8th in the Canadian Youth U-12 chess championship with 5/7. He scored 7/9 (behind only Wesley So who scored 9/9) for clear 2nd in the 2013 Calgary International blitz tournament. He, Davaaochir Nyamdorj and Tanraj Sohal scored 4/5 at the 2013 BCCF(4) Junior chess championship(12).
At New York in 2014, he scored 5˝/9 (tying for 4th-5th) at the North American youth chess championship (U18 !(4)). He finished with 6/9 in Kitchener at the 2014 North American Junior chess championship and returned to play in it the following year(6). Also, after August of 2014, his ranking on the FIDE list of players in the world for U-14 rose to 30th overall. He scored 3.5/8 of 10 games played on 2nd board at the 2014 World youth team chess Olympiad (8).
FIDE master Jason plays Edward Porper at the 2013 Canadian open: http://www.youtube.com/watch?featur...
References / Sources
(1) http://wycc2010.blogspot.com/ , (2) http://calgaryinternationalchesscla... , (3) http://chess-math.org/toronto/naycc... (North American 2013 U-18 chess championship), (4) http://chess-results.com/tnr137867...., (5) http://www.chesseducators.com/north..., (6) http://www.chessfest.ca/standings.h... , (7) http://ratings.fide.com/tournament_..., (8) http://wyco2014.chess.hu/news/the-o... (played 2nd board for the top of 3 Canadian teams at the youth team Olympiad in Hungary), (9) https://ratings.fide.com/apps/23539..., (10) http://www.canadianchesszonal.com/x..., (11) http://www.365chess.com/players/Jas... , (12) http://www.chess.ca/crosstable?tour... (Canadian Chess Federation rating card), (13) http://chess-results.com/tnr297814.... (2017 North American Junior chess championship), (14) http://www.chess.ca/crosstable?tour... (2012 CYCC U-12).