FM (2011); International Master (2011).
<Youth> Moulthun Ly scored 5.5/9 in the World U14 World Championship in Greece in 2004.
<Junior (U20)> He won the 2004 Australian Junior masters in 2004 and became Australian Junior champion in 2005.
<World> He came =3rd at the 2011 Oceania Zonal in Rotorua, the result earning him his FM title.
Ly was =1st in the 2011 Australian Open with 8.5/11. Ly's three IM norms came at the 34th World Open in Philadelphia in 2006, the Essent Open in 2006 and the Doeberl Cup in early 2010. Ly started 2012 auspiciously with strong showings in the Australian Championship (6.5/11) and in the Queenstown Chess Classic (2012) (6/9), raising his rating to 2402, his highest to that date. In June 2012, he came =2nd at the 2012 Gold Coast Open with 5/6. 2013 has so far seen him place =2nd at the Australian Open, scoring 8.5/11, and =4th at the annual Doeberl Cup in Canberra, scoring 6.5/9.
In August and September 2012, he put in a very strong performance as Australia's board 2 in the Chess Olympiad (2012), scoring 7/10 for a TPR of 2541, and helping Australia to a comparatively excellent placing of 32nd, 29 places higher than its seeding.
Rating and ranking
Ly's rating as of 1 December 2013 was 2433, ranking him #4 in Australia. His blitz rating is 2422.