-rate)Timex iControl Triathlon 30 and Ironman 50 £33-£48 Timex Ironman 100 HRM £100Timex Rush VO2 £34.99 What does it all mean?Chronograph/stopwatchThe stopwatch mode (or ‘chronograph’) times your runs in hours, minutes, seconds and fractions

recovery since your last run. The S3 stride sensor measures cadence as well as speed and distance, and the package can help you train to increase your stride length and cadence for a faster, more efficient run. Best of all, though, the accompanying Polar

While getting the kit together for a six-day Eco Challenge can be as tough as the race itself, one- and two-day races are perfect for the weekend warrior who dimly remembers owning a bike to go to school on. While international-level teams