In the last two decades or so, the British Horseracing Authority (BHA) has encouraged better horses to participate in the Grand National by ‘compressing’ the weights. What this means, in practical terms, is allowing horses at the top of the handicap to run off lower handicap ratings than would otherwise be the case. This, in turn, decreases the difference between the highest and lowest weighted horses in the National field, creating, at least in theory, a more competitive race.
The notion that horses at the top of the handicap had previously been disadvantaged by carrying additional weight over the extreme distance of the Grand National appears to be borne out by results since the turn of the twenty-first century. Since 2001, seven horses have carried 11st or more to victory in the National, whereas in the preceding two decades only Grittar (1982), Corbiere (1983) and Rhyme ‘N’ Reason (1988) did so. At the other end of the handicap, no horse has carried the minimum weight of 10st to victory since Bobbyjo who was, in fact, 14lb out of the handicap proper, in 1999.