Triathlon has seen huge changes in the past few decades; it has grown in popularity; been recognised as an Olympic sport; and witnessed a rapid increase in standards of performance at all levels. These changes have been accompanied by major developments in training principles and methods. Two of the UK's top triathlon coaches, Steve Trew and Dan Bullock, have teamed up to write 100 Essential Triathlon Sessions, the definitive training programme for all serious triathletes. These 100 sessions - 30 swim, 30 bike, 30 run and 10 Brick - have been developed and honed over many years and have proved effective in improving performance.
Steve Trew is one of the best-known names in the world of triathlon as a coach, race commentator, broadcaster and journalist. He has coached at European and World Championships and has been at the last five Olympic and Commonwealth Games as coach, team manager and/or commentator for triathlon and swimming. Steve was BBC commentator at the 2012 London Olympic Games for the sports of triathlon and race walking. At the 2012 London Paralympic Games, Steve was the stadium commentator for track and field athletics. Dan Bullock has been coaching since 1990. During that time he has gained ASA, ASCA and BTF coaching qualifications and was 220 Triathlon magazine's Triathlon Coach of the Year in 2005/6. In 2012, he wrote an Openwater CPD module for British Swimming.