The Champion Standard Open NH Flat Race is a Grade 2 National Hunt flat race in Great Britain which is open to horses aged four to six years. It is run at Aintree over a distance of about 2 miles and 1 furlong (3,420 metres), and it is scheduled to take place each year during the Grand National meeting in early April.
The event was established in 1987, and it was given Grade 2 status in 1995. It was sponsored by John Smith's from 2005 to 2013 and by Weatherbys Private Bank since 2014. The field sometimes includes horses which ran previously in the Champion Bumper.
1 The 1997 edition was cancelled because of a security alert at the racecourse.
2 The 2007 edition was run in May after the original race was abandoned due to a Grand National faller being treated on the course.