A list of notable flat horse races which take place annually in Great Britain, under the authority of the British Horseracing Authority (BHA), including all conditions races which currently hold Group 1, 2 or 3 status in the European Pattern.
The distances of the races are expressed in miles, furlongs and yards.
In 2017 the BHA concluded a racecourse survey and remeasurement which led to some racecourses changing the exact distance of some races, or moving race start points to fit with advertised race distances.
The races in bold are run on an all-weather surface.
Criteria for inclusion; † Prize money figures in italics are from last season.