FM (2011); International Master (2011); 1 GM norm (2014).
<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.
<Australia> Ly came =2nd in the Australian Championship of 2014, with 7.5/11.
<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 saw 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 2014 he has so far scored a solid 5.5/9 at the 19th International Grandmaster Open in Kolkata in India, 6/9 (=8th) at the International Open in Kuala Lumpur and 6.5/9 (=5th) at the annual Doeberl Cup to raise his rating and ranking to its highest level so far. He followed up with a par for rating result of 6.5/9 at the Doeberl Cup and capped it with a stunning outright win at the Sydney International Open with 7/9 ahead of Liviu Dieter Nisipeanu, Loek van Wely, Levente Vajda and the rapidly rising stars Australian IM Junta Ikeda and untitled (but with 4 GM norms!) Chinese player Mu Ke, also winning his first GM norm for himself. In July 2014, he scored 7.5/10 at the Politiken Cup (2014), placing =6th.
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. He played board 2 for Australia at the Chess Olympiad (2014), again helping Australia to a placing 29 higher than its seeding, namely 31st place ahead of its #60 seeding .
Rating and ranking
Ly's rating as of 1 October 2014 was 2463, ranking him #4 in Australia behind GMs Zhao Zong-Yuan, David Smerdon and Max Illingworth. His blitz rating is 2411.