By Mike McDaniel The Atlantic-10 tournament champion stayed hot, knocking off the Big Ten champions in a monumental first round upset. View the original article to see embedded media. Saddled by one of the worst shooting performances of the season, No. 5 seed Iowa was upset by No. 12 Richmond, 67–63, in the first round of the NCAA tournament on Thursday. Richmond, who won the Atlantic-10 tournament title to steal an automatic bid to the Big Dance, stifled the Big Ten champion Hawkeyes defensively. Iowa shot just 36.4% from the floor overall, and 6 of 29 from three (20.7%). Spiders guard Jacob …