- 2nd (100m backstroke) - 2012 National Championships (Adelaide, Australia)
- 5th (100m backstroke) - 2011 National Championships (Sydney, Australia)
- 12th (200m backstroke) - 2011 National Championships (Sydney, Australia)
- 6th (50m backstroke) - 2010 Commonwealth Games (Delhi, India)
- 9th (100m backstroke) - 2010 Commonwealth Games (Delhi, India)
- Qualified for first senior Australian team by winning silver in the 50m backstroke at the 2010 Australian Championships
- Being named swimmer of the meet at the 2007 Junior Pan Pacs in Hawaii
- Backstroke specialist Daniel Arnamnart will make his Olympic debut in London aged 22. Arnamnart has qualified in the 100m backstroke after finishing second to Hayden Stoeckel in a time of 54.05 seconds.
- At the 2007 Junior Pan Pacs in Maui, Arnamnart was a triple gold medallist (100m backstroke, 4 x 100m medley relay, 4 x 100m freestyle relay) and was named swimmer of the meet.
- Arnamnart missed selection for the 2008 Beijing Games and being forced to watch those Games on television is what gave the Sydneysider motivation to swim on for London selection.
- Arnamnart competed at the 2010 Pan Pacs in Irvine, California - his first international meet as a member of the senior Australian team. At the 2010 Delhi Commonwealth Games, Arnamnart contested the 50m and 100m backstroke, finishing 6th and 9th respectivley.
- Arnamnart competed at the 2005 AYOF where he won gold in the 100m backstroke and bronze in the 4 x 100m medley relay.
Years on national team
Brant Best (2011 - current)
Brett Winkworth (2006 - 2011)
Primary Training Base
SOPAC (NSW, Australia)
NSW Institute of Sport, Sydney
Mt Colah Public School (NSW, Australia)
Asquith Boys High School (NSW, Australia)