Moscow Flyer was an Irish-bred and -trained National Hunt horse who ran over distances between 2 miles and 2+1⁄2 miles (3.2–4 km). A top-class horse who achieved a Timeform rating of 184, he won the Queen Mother Champion Chase in 2003 and 2005, the Tingle Creek Chase in 2003 and 2004 and the Arkle Challenge Trophy in 2002.

The Queen Mother Champion Chase is a Grade 1 National Hunt steeplechase in Great Britain which is open to horses aged five years or older. As part of a sponsorship agreement with the online betting company Betway, the race is now known as the Betway Queen Mother Champion Chase. It is run on the Old Course at Cheltenham over a distance of about 2 miles, and during its running there are thirteen fences to be jumped. The race is scheduled to take place each year during the Cheltenham Festival in March.