Why the Grand National Doesn't Behave Like Other Jump Races
Most of the analytical tools that work well across the rest of the jump racing season — tight form study, course-and-distance records, recent finishing positions — become noisier at Aintree in the Grand National itself, and it's worth understanding why before you commit any money to it. The race is run over four and a quarter miles, roughly twice the distance of a typical staying chase, with thirty fences to jump including the famous obstacles — Becher's Brook, the Chair, the Canal Turn — that are modified from their old, more punishing form but still ride very differently to a standard park fence. On top of the trip and the fences, the field is large by the standards of any other race in the calendar, and large fields over a long trip with unusual obstacles introduce genuine attrition: horses that would finish a normal three-mile chase can and do fail to complete the National for reasons that have nothing to do with their underlying ability.
None of this makes the race unbettable — it makes it a race where the each-way and place market often deserves more attention than the win market, and where survival, jumping technique, and proven experience of unusually long, unusually configured races matter more than they do in almost anything else you'll bet on all year.
Field Size Changes the Place Terms — and the Value
Because the National regularly fills to a large field, each-way terms are typically more generous than a standard handicap chase — bookmakers commonly extend place terms to the first four, five, or even six finishers, and it's worth checking each firm's specific terms before betting because they vary and the differences are meaningful. A firm offering six places at a fraction of the win odds, compared to a rival offering four places at the standard fraction, can materially change which bet represents better value on the exact same horse. This is the single most important practical check to make before placing a National bet: read the each-way terms carefully, because in a race this unpredictable, the place part of an each-way bet is doing a lot of the work.
The Favourite vs the Field
The National's public profile means the market favourite is often shorter than its true chance would suggest in a smaller, more specialist jumping puzzle — casual, once-a-year punters back recognisable names and recent Cheltenham form, which can compress the price on a horse whose form, while good, doesn't necessarily transfer cleanly to four and a quarter miles of unique fences. This is precisely the situation where a model trained on quantifiable form and course data rather than name recognition tends to diverge most from the crowd — not because the favourite is a bad horse, but because the price often reflects public sentiment as much as the specific demands of the race.
At the other end of the market, outsiders with proven stamina, a jumping style suited to Aintree's fences, and a trainer with a track record of getting horses round the National course specifically — as opposed to just winning staying chases elsewhere — are where a lot of the historical shocks have come from. Cross-referencing a horse's finishing record specifically at Aintree, not just its overall chase form, is one of the more useful narrow checks you can do before the race.
Practical Approach
Treat the National as a place-heavy bet by default: with generous each-way terms and a genuinely unpredictable completion rate, backing two or three horses each-way in smaller stakes usually make more sense within a disciplined staking plan than a single large win bet on the favourite. Check each bookmaker's specific place terms rather than assuming they're standard — this is the one detail in National betting that most directly changes expected value. And if you're backing ahead of the final declarations, be aware that ante-post rules typically mean no-refund if your horse doesn't run, which matters more here than in most races given how often National entries are affected by ground and fitness calls in the final week. Check today's racecards for the up-to-date field and go-status once declarations are confirmed, and see how the AI picks for the day weigh the field once final conditions are known.