You may notice that the speed from Stryd is different than the speed on your treadmill display. This is completely normal and expected. The speed display on the treadmill is telling you the average speed of the treadmill belt, rather than your speed as a runner. The belt will slow down when you land and accelerate when you take off (which causes the difference between average belt pace and runner pace). Please read our article Mysterious Treadmill Pace? for why these two values are different.
To know Stryd accuracy, head to the track!
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