If anyone is under any illusion that a GPS watch is the last word in accuracy and decries a race long! or short! based on the findings of a bit of plastic on their wrist, they should carry out the following experiment:
In determining whether my replacement Garmin Forerunner 910XT was sent complete with a duff battery, my watch took part in a two hour run where it went no further than sit on my study windowsill. Despite not moving an inch (unless it sneakily did a runner whilst I went to make a cup of tea) the watch claimed to cover a third of a mile when all it did was relax looking out of the window watching the clouds pass by.
If its ability to capture totally accurate data is compromised when standing perfectly still, imagine the challenge it faces when constantly on the move, turning sharp corners, speeding up and slowing down, often passing under bridges and the like. It’s a mini miracle these devices come up with a distance half realistic at all.
The fun of a motionless run done and relieved that the alarming battery drain of yesterday appeared to be an anomaly, several hours passed looking at pictures of racing cars in Bahrain before I headed out a little before 5pm for an easy paced recovery run. The first mile was a torrid affair – the legs just didn’t want to know.
Thankfully things improved so that my regular recovery run to Dysart Park became just that – perfectly regular. I found a better alternative route to the park now that the footbridge is temporarily closed – a dead straight road that runs alongside the River Witham. There was little in the way of pain – the right groin ached a touch. The main issue was I was a touch overdressed wearing tights and cycling shorts underneath, feeling uncomfortably warm.
By the end of the run and with the Garmin on for around an hour, the battery showed 94% remaining, which is just about spot on for a watch that has a claimed life of 20 hours. Whether the replacement fixes the issues I had is another, as yet, unanswered question.