The Biggest Priced Grand National Winners Provided Some Of The Best Underdog Stories In The History Of British Horse Racing
Grand National | Aintree Racecourse, Merseyside | Saturday April 11, 2026 | 4pm
Not only is the Grand National one of the most famous and high-profile horse racing events in the world, the level of drama and excitement that goes with it is unrivaled. Even more so when an underdog rides to glory and steals all the headlines; writing themselves into Aintree folklore in the process.
The Merseyside Marathon is renowned for its big prices of bettors hoping to win big. And that is exactly what has happened over the years. Incredibly, a total of five horses with a SP of 100/1 have won the Grand National. Certifying the races reputation for shocks and upsets.
With the 2026 edition just days away, BetVictor News takes a look back at the biggest priced Grand National winners and highlights some long-shots to consider on April 11.
Biggest Priced Grand National Winners
Mon Mome – 100/1 (2009)
The most recent three-figure priced winner came in 2009. It’s a well-known fact that the Grand National favourites record is surprisingly poor and the race 17 years ago certainly proved that the World’s Greatest Steeplechase is a complete lottery.
Mon Mome – trained by Venetia Williams – won by 12 lengths ahead of the 2008 winner Comply Or Die. Williams became just the second female trainer (Jenny Pitman was first – since joined by Sue Smith in 2013) to taste glory at the National with Mon Mome the first French-bred winner in over 100 years.
Foinavon – 100/1 (1967)
Completely defying the Grand National odds in 1967 was none other than Foinavon. Ridden by John Buckingham – who was apparently the only jockey willing to saddle Foinavon – created history in one of the National’s biggest ever shocks.
The huge melee on the 23rd fence which saw a plethora of horses tumble has since become synonymous with the Irish legend. Foinavon was too far behind and avoided the carnage, enabling him to gain the lead and ride home with a recorded time of 9m 49.6s. To this day, the 23rd fence is aptly named after the Irish racehorse.
Caughoo – 100/1 (1947)
Just two years after WW2, Caughoo demonstrated that Grand National betting really can throw up a huge surprise. The 1947 edition saw the 100/1 shot romp home by 20 lengths. Not only is it rare to see an outsider win, but to do so as handsomely as the eight-year-old did in the fog is even more impressive.
Caughoo’s victory was marred in controversy, however. It was widely rumoured that he skipped a circuit owing to the misty conditions but that theory was debunked. The Irish racehorse jumped Becher’s Brook twice, meaning the stunning win ahead of 56 competitors was legit.
Gregalach – 100/1 (1929)
A mammoth 66 runners competed in the 1929 edition whereby 100/1 outsider Gregalach claimed a famous and historic victory. Incredibly, only nine Grand National runners managed to finish the Merseyside Marathon that year which makes Greglach’s win all the more legendary.
Only two entrants crossed the posts at odds of 20/1 or less, meaning there were a number of 100/1-200/1 shots that past the posts. Easter Hero – who was the favourite – did claim second. However, it was Greglach who earned a prize fund of £14k (approx £780k in today’s money).
Tipperary Tim – 100/1 (1928)
One year prior to Gregalach’s legendary success, Tipperary Tim earned his spot in Aintree folklore. What makes his victory so famous is that the jockey’s friends all claimed a win was only possible if every other horse fell or pulled up. And unbelievably, that is almost what happened.
Tipperary Tim was the very-first 100/1 winner and perhaps much of that was owing to the poor conditions. A week’s worth of rain battered Aintree which meant only 40 of the 42 runners managed to pass the posts. A huge pile-up at Canal Turn unseated most of the entrants with Billy Barton eventually coming second.
To this day, the 1928 edition saw the fewest horses actually complete the Grand National.
Honourable Mentions For The Biggest Priced Grand National Winners
- Auroras Encore – 66/1 (2013)
- Ayala – 66/1 (1963)
- Russian Hero – 66/1 (1949)
- Rubio – 66/1 (1908)
Biggest Priced Grand National Potentials In 2026
Although the final list of 34 entries is yet to be fully finalised and confirmed, there are a number of outsiders who could all be worth considering come April 11. Champ Kiely – trained by Willie Mullins – is currently available at 66/1 here on BetVictor.
If you’re looking for vaster odds, the likes of Pied Piper and Marble Sands are also worth considering. Both are currently 100/1.
If you intend to bet on the 2026 Grand National, then please take the time to read through BetVictor’s safe and responsible gambling page which will provide good advice on how to stay in control when betting on horse racing.
Any betting decisions should be made responsibly and there are no guarantees when it comes to outcomes. Odds correct as of 10:30am April 1, 2026.
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