I'm about 207lb and I know I can push about 650-700 watts out of a Concept 2 rowing machine for a couple of minutes!
I didn't immediately think it was an error, but I did want to see where I had done this epic feat.
The reason I'm sure the data is wrong is that the location on the map is pretty much flat and I wasn't working hard there. If it had been at one of the two locations that I suspected it was then I would have just accepted the truth that I am a cycling monster (over very short distances).