By Jefferson County Speedway (Fairbury, NE) -- Overnight rain, continued mist and lack of sunlight have forced us to cancel all activities at the speedway today(Saturday, April 17th)...We wanted to get the word out early to minimize travel for teams and fans....We are currently looking for replacement dates for The 7th Annual Roy Cooley Memorial at Jefferson County Speedway with Sprint Cars and JayHusker Micros and will posting ASAP....