Veloroutes doesn't work in my area, so not sure how it does in other parts of the country. How far is the race from your home? Can you pre-ride (or drive) the course? (and if so, do you have a GPS you can bring with you - which is still only a ballpark, but helpful?) Are you trying to make a decision about what cassette to put on your race wheel, or strictly preparing yourself mentally?

Remember that average grade doesn't tell you whether a particular hill has very steep climbs interspersed with false flats or shallower grades.

The worst case scenario is that you'll still be completely prepared mentally for the last two of the three laps And everyone else has to do the same climb, too.

Good luck! You'll do great!