Dietzig, with over 20 years of experience of the open water discipline, has worked as performance scientist with British Swimming since 2008 and was a key member of the team at a number of international events including the London 2012 Olympics where Kerri-Anne Payne and Daniel Fogg finished fourth and fifth respectively.
Originally trained as a sports physiologist, he will work alongside head coach Bill Furniss and develop a world class programme for open water swimming at podium, podium potential and talent levels to help Britain win medals at major events.
"Having been involved with Open Water Swimming as a member of support staff for nearly five years, I have good knowledge of the existing structure, associated swimmers and coaches," said Dietzig.
"I am confident I can implement changes necessary for British Swimming to become a world leading Open Water Swimming nation once again.
"And on a personal level feel more motivated and passionate than ever to fulfil our medal target for Rio 2016."
- Sports & Recreation
- open water swimming
- British Swimming