No. They're ~1100-1200m long. I'm using an "out and back" course that's in the shape of a "drawn-out half-pipe". In other words, my turns are done at low speed on the upslope side of a hill at either end.
In fact, the venue I did this test on is not the one I usually test at. I used it for logistical reasons (only a couple blocks from home, shorter lap length). The downside is that the elevation difference isn't as great and so the maximum and average speeds are lower. This means (as was seen) that it's more sensitive to cross winds affecting the apparent wind angle.
If I plan on testing more at that course, I may need to consider investing in a portable weather station with data logging :-)
http://bikeblather.blogspot.com/