Grand National Ante Post Betting Odds & Tips 2025
All the biggest bookmakers offer ante-post Grand National odds which allow you to bet on the big race throughout the year. Check out our Grand National ante-post betting guide for all the specific rules. It provides helpful advice to help you get the most value when placing your Aintree wager.
2025 Grand National Betting Odds
Below are the major contenders and their current Grand National ante-post betting odds. We’ve also calculated the percentage probability of each horse winning the famous race based on their odds.
| Grand National Favourites 2025 | Grand National Odds | Implied Chance % |
|---|---|---|
| Intense Raffles | 7/1 | 12.5% |
| Iroko | 8/1 | 11.1% |
| I Am Maximus | 10/1 | 9.1% |
| Stumptown | 12/1 | 7.7% |
| Perceval Legallois | 14/1 | 6.7% |
| Vanillier | 14/1 | 6.7% |
| Nick Rockett | 18/1 | 5.3% |
| Hewick | 20/1 | 4.8% |
| Kandoo Kid | 25/1 | 3.8% |
| Meetingofthewaters | 25/1 | 3.8% |
Odds & % correct at 4pm on 19th March 2024
What are the odds on the Grand National?
The average odds of a winning Grand National horse are around 20/1. 23 of the last 30 Grand National winners won at double-figure odds. One For Arthur in 2017, Tiger Roll in 2019 and I Am Maximus are the only single-figure odds Grand National winners in the last 15 years.
For a long time, racing fans assumed horses carrying over 11st couldn’t win the year’s biggest jumps race. However, this trend is showing signs of reversal in recent years. Many Clouds carried the monster weight of 11st 9lb to victory in 2015. We’ve actually seen seven Grand National winners carry 11st or more in weight since 2009.
Grand National Ante Post Betting Tips
Grand National 2025 ante-post odds are always subject to change as certain horses might not run, jockeys can switch rides, and the conditions at Aintree will suit some horses more than others. Inothewayurthinkin is a perfect example. After winning the Cheltenham Gold Cup, he became a heavy favourite for the Grand National, but his owners have decided he won’t run at Aintree.
Grand National experience is a big positive when looking for the winner, and last year’s winner, I Am Maximus holds a big chance again this year. He currently sits third in the betting, having been the ante-post favourite for a long time. His trainer Willie Mullins dominated the Cheltenham Festival again this year. With the yard so in-form, I Am Maximus looks like a good value ante-post bet.
Another in-form runner to keep an eye on is Stumptown. He’ll come to Aintree on the back of four straight victories, the most recent of which came against elite competition in the Cheltenham Cross Country Chase. If he continues to improve, he’ll be a real contender for this year’s National. He looks like a decent ante-post bet at double-digit odds.
If you’re looking for an outsider, you can assess all your options on our Grand National runners page. Meetingofthewaters is one such outsider who looks like a solid ante-post play. Willie Mullins has tailored the 8-year-old entire campaign so he peaks at Aintree. Beauport is another horse that is attracting some ante-post support from punters.
Regardless of whether you use our tips, you need to take advantage of the best Grand National betting offers. Some of the best bookmaker promos give free bet rewards, providing more value for your money!
Grand National 2025 Ante Post Favourites
Here are some more details about the runners leading the ante-post betting for the 2025 Grand National:
Intense Raffles
- Age: 7
- Trainer: Thomas Gibney
- Best known for: Winning the 2024 Irish Grand National.
- Grand National 2025 best odds: 7/1
Iroko
- Age: 7
- Trainer: Oliver Greenall & Josh Guerriero
- Best known for: Winning the Martin Pipe Conditional at the 2023 Cheltenham Festival.
- Grand National 2025 best odds:8/1
I Am Maximus
- Age: 9
- Trainer: Willie Mullins
- Best known for: Winning the Grand National in 2024.
- Grand National 2025 best odds: 10/1
Stumptown
- Age: 8
- Trainer: Gavin Cromwell
- Best known for: Winning the 2025 Cheltenham Cross Country Chase.
- Grand National 2025 best odds: 12/1
Perceval Legallois
- Age: 8
- Trainer: Gavin Cromwell
- Best known for: Winning the 2024 Paddy Power Chase at Leopardstown.
- Grand National 2025 best odds: 14/1
Odds correct at 4pm on 19th March 2025
Key Grand National Trends
Due to course modifications, the last 13 Grand Nationals are the most relevant for key trends. With no race in 2020, here are the trends for the race winners from 2010 to 2023:
Grand National Experience
Experience tackling the Grand National fences is another crucial factor that can affect the Grand National ante-post odds. The Aintree fences are unique. Being made of spruce means they look different to fences at other courses. There are 30 obstacles over the two circuits of the course. The Chair and Water Jump are negotiated just once, while the other 14 fences are jumped on both circuits.
Some Aintree specialists adapt to the fences well, while other horses underperform when jumping the unique obstacles. A horse’s temperament is important during the marathon Aintree contest. Coping with the atmosphere created by about 60,000 racegoers while tacking the unique fences is a tall task. Tiger Roll is the most recent multiple-time winner, claiming victory in the 2018 and 2019 Grand Nationals.
Grand National Age
- Youngest Grand National winner: Noble Yeats (2022): 7.
- Oldest Grand National winner: Neptune Collognes (2012), Auroras Encore (2013), Pineau de Re (2014): 11.
- Number of Grand National winners by age: 7yo – 1; 8yo – 4; 9yo – 3; 10yo – 2; 11yo – 3.
Grand National Weight
- 11-00 and over: 5 winners.
- Highest weight of the Grand National winner: 11-09 Many Clouds in 2015
- Lowest weight of the Grand National winner: Auroras Encore: 10-03 in 2013.
Grand National Odds
- Average odds of the Grand National winner: 21/1
- Winners with single figure odds: 2
- Winners with double figure odds: 11
- Winners with treble figure odds: 0
- Grand National favourites to win: 2 outright favourites and 1 joint favourite.
- Most common odds range of Grand National winners: 5 winners at 10/1 to 14/1.
Grand National Ante Post Betting FAQs
Here are the answers to some common questions about the Grand National:
Who will win the 2025 Grand National at Aintree?
According to the betting market, Inothewayurthinkin, is the most likely 2025 Grand National winner. Last year’s winner, I Am Maximus, is currently second in the betting. That suggests he has a good chance of retaining his crown.
Who are the most successful Grand National trainers?
The following leading trainers have won the Grand National four times:
George Dockeray: (Lottery, 1839; Jerry, 1840; Gaylad, 1842; Miss Mowbray, 1852); Fred Rimell (E.S.B., 1956; Nicolaus Silver, 1961; Gay Trip, 1970; Rag Trade, 1976); Ginger McCain (Red Rum, 1973, 1974, 1977; Amberleigh House, 2004)
New to Grand National betting and need some help?
Learn about different types of Grand National Betting with our betting guide! We cover Tote Betting, Win Betting and Each-way betting, and give you some help picking the 2024 Grand National Winner!
Download our Grand National Betting Guide
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