Grand National 2026: The Aintree Fences Explained for First-Time Punters

Ask most people to name a Grand National fence and they will say Becher's Brook. Ask them what makes it different from any other fence and most will struggle to explain. For casual punters placing their one bet of the year on April 11th, understanding what the Aintree fences actually demand of a horse is the single most useful piece of knowledge available — because it directly affects which horses are worth backing and which are not. Why the Aintree Fences Are Different Every fence at the Grand National is unique to Aintree. They are built from spruce — a different material from the birch used at virtually every other jump racing track in Britain and Ireland. Spruce has a different texture and a different give when a horse clips it, which means horses that have jumped perfectly well at Cheltenham, Sandown or Leopardstown all their lives can find Aintree's fences a genuinely new experience. The first time a horse meets a National fence, it is learning in real time — and that learning process comes at racing pace in a field of up to 40 horses. This is why proven Aintree course form — particularly over the National fences specifically — is the single most important form variable in the race. Horses that have already jumped these fences, survived the experience, and run competitively in the process are starting from a fundamentally different position than horses making their debut over the National course. Becher's Brook — The Drop Fence Becher's Brook is the sixth fence in the race, jumped twice per circuit. What makes it uniquely challenging is not its height — it is the drop on the landing side. The landing side of Becher's is between six and ten inches lower than the take-off side, which means a horse landing at full gallop finds the ground closer than expected. Horses that meet Becher's on a long stride and land efficiently handle it well. Horses that meet it wrong, or that are not balanced coming into the fence, can be tipped forward by the unexpected drop. It is the most famous fence in the world for a reason. The Canal Turn — The Right Angle The Canal Turn is the eighth fence, also jumped twice. It sits at a corner of the course and requires horse and jockey to turn almost ninety degrees to the right immediately after landing — all at racing pace. A horse that drifts left on landing, or that takes time to respond to the jockey's instructions, can lose significant ground or even collide with the running rail. Horses that are responsive, agile and that have already learned the Canal Turn carry a decisive advantage over debutants encountering it for the first time. The Chair — The Widest Fence The Chair is jumped only once — in the first circuit — and is the widest fence on the course at approximately five feet ten inches high with a six-foot wide ditch in front of it. It comes in front of the main grandstand with the crowd at its loudest and most partisan. At the moment horses meet The Chair, the field is still tightly bunched from the first circuit — traffic, noise and the fence's unique dimensions combine to make it one of the race's most significant tests. Horses that jump The Chair cleanly are almost always in a better position coming around the final bend. Why This Matters for Betting The practical implication is straightforward. Before placing any Grand National bet, check whether your selection has previously raced over the National fences — in the Becher Chase in December, in the Topham Chase on the Friday before the National, or in a previous Grand National itself. A horse with that experience is not just better prepared. It is fundamentally more likely to complete the course safely and run its race. Most of the horses that exit the race early — through falls, unseated riders or refusals — are those experiencing the Aintree fences for the first time. Course experience at Aintree over the National fences is not a nice-to-have. It is the starting point. Horse Racing Oracle AI weights Aintree course form over the National fences as one of its highest-priority variables when assessing Grand National runners. The selection will be live before declarations settle the market on Wednesday April 8th. Want free AI-powered tips every morning? Sign up free at horseracingoracleai.com → Betting involves risk. Please gamble responsibly. Visit BeGambleAware.org.