Aintree Grand National trends expose a race where the odds still mislead
The aintree grand national still looks like a lottery, but the data behind recent winners shows it is not random in the way many assume. Since 2000, there have been 25 renewals of the race, with no running in 2020 because of the Covid-19 pandemic, and the pattern that emerges is complicated: some winners were strong favourites, others arrived at much bigger prices, and the weight carried by the winner has varied in a range that still leaves room for debate.
What do the numbers actually say about the aintree grand national?
Verified fact: The shortest-priced winner this century was Tiger Roll at 4-1 in 2019, when he became the first back-to-back victor since Red Rum in the 1970s. The biggest price was Mon Mome in 2009 at 100-1, while last year’s winner, Nick Rockett, went off at 33-1. The average price of the winner this century has been just under 24-1, and eight winners have been priced 33-1 or higher. That means the aintree grand national has repeatedly produced outcomes that reward outsiders as well as market leaders.
Informed analysis: The message is not that odds are useless, but that they are incomplete. The past 10 renewals add another layer: the average price drops, with the winner 11-1 or shorter on five occasions. In other words, recent editions have leaned somewhat closer to the front of the betting than the broader century trend, even while long shots still remain very much in the frame.
Does weight matter more than price in the aintree grand national?
Verified fact: There is no obvious trend across the last 25 races when it comes to weight, with winners carrying between 10st 3lb and 11st 9lb. Nine of the past 11 winners have carried between 10st 5lb and 11st 8lb, and the average winning weight across the past 25 runnings sits between 10st 12lb and 10st 13lb. Those specific weights have produced a combined three winners, while 11st 6lb has been the most successful individual weight with three victories.
Informed analysis: That combination suggests the race is not won by a single magic number, but some bands have been more productive than others. It also explains why the field can be trimmed only so far: even useful trend lines stop short of producing certainty. The weight data may help narrow a shortlist, but it does not deliver a clean answer on its own.
Who is helped and who is exposed by the trend data?
Verified fact: Six favourites, including joint favourites, have won the race this century, and three of those wins have come in the past six renewals, including I Am Maximus in 2024. The favourite or a joint-favourite has also finished in the top five on a further 12 occasions since 2000. At the same time, if the recent weight pattern continues, it would rule out the top six in the field, particularly I Am Maximus, who is attempting to become the first top weight to win since Red Rum carried 12 stone to victory in 1974.
Informed analysis: This is where the aintree grand national becomes most revealing. The betting market clearly matters, because favourites have won and have repeatedly placed near the front. But the race also punishes overconfidence, because the same history includes huge-priced winners and wide weight variation. The beneficiaries are the horses that sit in the middle ground: not ignored by the market, but not burdened by expectations that the race may refuse to honour.
Can past winners really guide the 2026 race?
Verified fact: The available data points to a race that is easier to narrow than to solve. The century-long average winning price is just under 24-1, yet recent renewals have been kinder to shorter-priced contenders. The weight range remains broad, but recent winners have clustered more tightly than the full history. That is why the trends are useful, but only to a point.
Informed analysis: For readers trying to make sense of the aintree grand national, the central truth is simple: the race offers clues, not certainty. Trends can reduce noise, expose overvalued assumptions, and highlight where the winner is more likely to come from. They cannot, on their own, identify the winner with confidence.
The public should read the aintree grand national with discipline rather than romance. The evidence from recent renewals shows that price, weight and favouritism all matter, but none of them dominates enough to remove the uncertainty. That is why the race continues to attract attention: the data can sharpen the question, but it still cannot settle it.
