More than 150 Iowa State University entrepreneurs will pitch their ideas to visitors at the ISU exhibit during the Iowa State Fair, ISU announced. The Great Iowa State Pitch Off: STANDING InnOVATION will be in the Varied Industries building from 9:30 a.m. to 4:30 p.m. Aug. 8-15. There will be two pitches every hour each day; each entrepreneur will have up to five minutes for presentation, followed by five minutes of Q&A with the audience.