We speak with Greg Williams about baseball equipment. He studied aerospace engineering at MIT and was involved with the sports research group. 4 February 2012.

Warren Brennen founded BBG Sports and invented Hot Spot, a technology that uses IR images to aid official calls in baseball in cricket. 22 November 2011.

Jason Anson is a sports technologist, and has developed software for monitoring training. 4 November 2011.

Jason Greenberg is the marketing, communications and events manager for Baseball Softball UK. 23 September 2011.

Kin Lo has served as head of R&D for the PGA tour, and knows golf technology well. We speak about ShotLink, the system used by the Tour to capture and organize information from each stroke. 19 March 2012.

William Mao and D'arcy McConvey are from the Sports Business club of the London Business School. We calk about the changing business side of sport. 11 March 2012.

Liam Kilmartin is a lecturer in electrical and electronic engineering at the National University of Ireland. We talk about goal line technologies and their implementation. 21 May 2012.

Phil Hartfield is a PhD research student in the Sports Tech Institute (at time of recording). He worked with the GB Rowing Team, and tells us how technology has changed rowing. 15 July 2013.

Ross Weir is director of Progressive Sports (at time of recording). We speak about the RespiBelt, a device designed to load the breathing muscles and exercise the diaphragm. 7 May 2012.

Sarah Rudd is VP of software development and analytics at StatDNA (@StatDNA), and she tells us how she combined programming/processing skills with extra-curricular interests in soccer to arrive at sport analytics. 3 March 2012.