1) 255w avg
2) 22.5 mph
3) 18.6 miles
4) 173 lbs
5) Felt B12, no-name aero front wheel, disc cover on back. Vittoria Corsa Evo CX w/ vittoria latex tubes
6) Flattish course. I felt like crap the whole ride (hence the low-for-me power), but I was pleasantly surprised to get the average speed I got since I'm usually very un-aerodynamic. I was in a bunch of traffic so I probably got a bit of a draft for the first 15km, but I think it was counteracted by having to slam on the brakes every now and then when people interpreted "on your left" as "move left". Another excuse is that I'm 6'1" and have swimmer shoulders.
Edit: And then I took a look at the speed->watts mapping in the first post and noticed that as aero as that race was by my standards, I'm still well below average in terms of efficiency.
STAC Zero Trainer - Zero noise, zero tire contact, zero moving parts. Suffer in Silence starting fall 2016