<P> Churchill Downs was designated a National Historic Landmark in 1986 . </P> <P> On Friday, June 19, 2009, Churchill Downs hosted its first - ever night race with an attendance of over 27,000 . </P> <P> Churchill Downs ventured into the music business, organizing the inaugural HullabaLOU Music Festival, held on the weekend of July 23--25, 2010 . The track had planned to make this an annual event to compete with other summer music festivals . HullabaLOU attracted 78,000 people but that fell short of the more than 100,000 expected by the company . The company attributed this to the brutal heat, but others cited high ticket prices in a poor economy . The entertainment division lost more than $5 million int its first year and was discontinued . </P> <P> On Wednesday, June 22, 2011, an EF2 tornado hit the Louisville area, striking the stables and chapel at Churchill Downs, though only at EF1 intensity at the time . Several stables were badly damaged, as was the chapel . Over 200 horses had to be evacuated from the damaged stables and be relocated to other stables that were not damaged by the tornado . The tornado did not cause any damage to the twin spires or the clubhouse . </P>

How many acres are in the infield at churchill downs