The Texas Lone Star Open, Live Bid Calling Challenge, October 28 from 11AM to 4PM, is a contest open to all auctioneers over 18. The public is invited to watch & bid! Contestants & Auction items will be posted prior to the event. Learn how to hire or become an Auctioneer. Auction resources provided. The Texas Lone Star Open is hosted by the Texas Auctioneer Association. A percent of the proceeds will benefit Texas Scottish Rite Children's Hospital and the All American Beef Battalion "Steak for Troops".