Final night of the World Nationals at the Speedway September 16, 2017 Sports Tweet Share LinkedIn Email Saturday will be the final night of racing at the World Nationals at the Marshalltown Speedway. Ten thousand dollars in prize money is at stake over the three days of this event. Leave a ReplyYour email address will not be published.CommentYou may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong> Name * Email * Website Δ