if maybe she left her workout tracker running while aboard a commercial airliner?

Prolly cheated and used farts.

for swimming? Wouldn't that just make bubbles?

gas propulsion!

wait,what? 600 miles? quick, call aquaman!

maybe she misplaced the decimal?

She left it up her gassy butt?

NewYorkJew: or two places to the right.

it's prolly a wonky gps app in the person's phone, or a bad export from a Garmin device. Too obvious to be a deliberate cheat.

another. At least this guy is paying attention and admits it's bogus.

Unbelievable!

I could totally do that.

what breaking the sound barrier underwater would sound like.

me also