[5] At the age of 14, Lomas was the second youngest athlete to compete in the 2004 Summer Olympics in Athens, Greece and was the flag-bearer of Malaysia in the opening ceremony.

Lomas represented Malaysia in diving in the 2007 World Aquatics Championships held in Melbourne, Australia.

[8] In 2006, Lomas along with teammate James Sandayud entered the Synchronised 10m Platform Competition and won Silver in the 2006 Commonwealth Games in Melbourne, Australia.

Lomas competed in the 2008 Summer Olympics in Beijing, China, qualifying for the 10 metre platform after finishing seventh in the 2007 World Aquatics Championships.

[10][11] The 2012 FINA Diving World Cup held in London, United Kingdom saw Lomas and Huang Qiang earning Bronze in the Synchronized 3 metre springboard event and qualifying for the 2012 Summer Olympics.

In the 10 metre platform event, Lomas earned 434.95 points, and was eliminated in the preliminary round, finishing at the 19th spot.

[18] He is coaching part-time with the Selangor team and aspire to open a diving academy; either in Sarawak or Kuala Lumpur.