My girlfriend thinks I am crazy and she might be right... I just finished the 'Roma per Due' a saling race from Rome to Sicilia and back on Virtual Regatta. I did it in a bit less than 5 days wich is really bad if I was on a real boat in real conditions. But if the wind conditions were real, I was online, changing directions and sails from an app on the iphone.
It is not the first race I am doing online, I did the Vendée Globe around the world in almost 3 months, that was much more demanding although the real winners of the race arrived before me (but a virtual racer was quicker than the real one!).