Entertainment Building/Grounds Lyon County Fair, Iowa Day Time Event Saturday - July 15 9:00 - 11:00 am Weigh Ins for Open Class Beef Show. 9:00 - 11:00 am Open Class Entries Registration 1:00 pm Open Class Beef Show (Classes are Breeding, Feeder, and Market Beef) Monday 11:00 - 9:00 pm Commercial Building Open 12:00 - 8:00 pm Meet the Deputies Outside the VIP Building. 5:00 - 7:00 pm Community Picnic 6:30 pm Queen Contest - Entertainment Building 7:00 pm Friend of the Fair Presentation - Entertainment Building Tuesday 11:00 - 9:00 pm Commercial booths and 4-H Buildings Open 12:00 - 8:00 pm Meet the Deputies Outside of the VIP Building 1:00 pm B & R Chainsaw Sculptures on the grounds by the VIP Building 1:00 pm Consumer Judging contest 2:00 - 6:30 pm B & R Chainsaw Sculptures on the grounds by the VIP Building 5:00 pm Kids Pedal Pull - In front of the Grandstands 5:30 - 7:00 pm Pork Chop Dinner by Lyon County Pork Producers 6:00 pm ISU Garden Tour - South of Round Barn 6:30 pm B & R Chainsaw Sculptures on the grounds by the VIP Building 7:00 pm Races Wednesday 11:00 - 9:00 pm Commercial Building Opens 11:00 - 9:00 pm 4-H Exhibit Building Opens 12:00 - 8:00 pm Meet the Deputies 1:30 pm Let Me Show You Demonstration 2:00 - 6:30 pm B & R Chainsaw Sculptures on the grounds by the VIP Building 3:00 pm  Spelling Bee in Entertainment Building  4:00 - 6:00 pm Zoomobile will be in the show arena  5:30 - 7:00 pm Steak Dinner by Lyon County Cattlemen’s Association 7:30 pm Figure 8 Races   Thursday 5:00 - 7:00 pm Roger Baldwin Memorial 4H Foundation Supper - Public Invited 6:15 - 6:45 pm Lyon County 4H awards and Recognition 6:45 pm Tractor Pull 6:30 - 10:30 Dance and Dodge Ball Tournament