there are already WR for indoor rowing. We are getting there!

As a friend at a rowing club said, ergs don't float.

It's good exercise, but it's not at all the same thing.

http://www.concept2.com/indoor-rowers/racing/records/ultra-d... only goes to 12 days, 12 hours, for a team of 10.

They don’t give distance rowed, but I guess that’s in relay with one rower at a time because that’s what is done in the 24 hour records (they also change rowers every !15 seconds or so! because that is fastest. For an example, see https://youtube.com/watch?v=WSbK9gP5pYU)