Pool swimming - 375 yards short?

[fazel]

Any suggestions? I swam this morning (for the second time in two years) and the distance came up way short. I don’t do flip turns but rest my watch arm on the side of the pool for a split second or so at each turn. The first time I swam the watch worked perfectly. As you can see in the attached image, something very weird was happening this morning. The only thing I can think of was I received a notification from my phone sitting next to the pool right around the same time the data became inaccurate.

[A Former User]

@fazel get used to it. Swims have been anywhere from 50-500 meters off. It seems like the faster I swim the worse it is.

[isazi]

@fazel not sure if the notification has something to do with it, but maybe test it again in airplane mode.