if anyone is looking for an option to Back yard Burn, MCRRC (montgomery county) has a XC race series. Distances are up to 8K, so not as long as BYB, but no preregistration needed and they are only $10. there's a trail 50miler, too, and a road series with distances up to 1/2 marathon. Good to have options. (And if you're up for it - compete for year-end prize $). Anyone know of other good XC options?