Performance
2007 Season
- Member of the Australian Sailing Team Development Squad
- Neil-Pryde Super-8 Slalom, Netherlands (1st)
- RS:X Australian Championships (1st)
- FW Australian Championships (1st)
- FW Oceanic Championships (1st)
- NSW FW State Championships (1st)
- Euro-Cup, England (9th)
- Euro-Cup, Switzerland (15th)
- Euro-Cup, Poland (24th)
2006 Season
- Member of the Australian National Olympic Squad (Sailing)
- Qld State Slalom Championships, Manly (1st)
- New Zealand FW Nationals, Auckland (2nd)
- NK-Windsurf Tour, Hargen aan Zee (4th)
- Euro-Cup, Poland (17th)
- PWA World Tour, Fuerteventura (28th)
- NSW Windsurfing Series “Marathon” Catergory (1st)
2005 Season
- FW Australian Championships (1st)
- FW World Championships (31st)
- FW Oceanic Championships (4th Overall, 1st Australian)
- Neil-Pryde International FW Regatta (4th)
- Australian Slalom Championships (7th)
2004 Season
- Oceanic FW Youth Champion
- Australian FW Youth Champion
- New Zealand FW Youth Champion
- Qld State Slalom Champion
- Qld State Formula Champion
- RQYS Winter Dinghy Series (All-Boats Division Overall Champion)
2003 Season
- NSW Slalom Champion
- Dutch Nationals (2nd Espoir)
- Euro-Cup Miedzyzdroje, Poland (44th)
- Euro-Cup Sylt, Germany (36th)
- Polish National Championships (37th)
2002 Season
- FW Youth World Championships (17th)
- FE European Championships (4th)
- IFCA World Championships (8th Youth)
- Australian Slalom Youth Champion
- Australian FW Youth Champion
- QLD and NSW FW Youth Champion
Sean
O'Brien is a 24 year old Professional Windsurfer hailing from Brisbane, Australia
- a purpose driven elite 
