Grand National favourite odds explained

The Grand National closes the British jumps season with the biggest betting race of the calendar. Thirty-four runners, four miles and two and a half furlongs, thirty fences, and a handicap that spreads the field from 11st 12lb at the top to around 10st at the bottom. Bookmakers price this race from the autumn onwards, and the favourite changes hands more than once before the tape goes up.

How bookmakers price a 34-runner handicap

You will not see a 1/3 favourite at Aintree. A field that size over that trip pushes prices apart rather than compressing them. The market leader sits between 6/1 and 10/1, the second favourite two or three points longer, and a block of contenders at 12/1 to 20/1 behind. That spread gives the book its margin across the whole field instead of on one horse.

Watch the favourite's price through the final week and you learn more than a preview column tells you. Firms cut a horse in the morning and push it back out by the afternoon. Two trainers with runners in the same race pull the market in opposite directions, and the money follows whichever one the public trusts.

News drives it all: the weights in February, stable form through March, the ground on the morning itself. A site like Thor fortune posts the current market beside the each-way terms, which turns the comparison between firms into a five-minute job instead of an afternoon of switching tabs.

Each-way terms matter more than the headline price

Bookmakers pay each-way on the National at a quarter or a fifth of the win odds, and most now pay four or five places. The fifth place earns its keep in a handicap this deep. A horse at 12/1 with a fifth of the odds returns 2.4 times the place stake. Take 4/1 with a quarter of the odds instead and that same place pays level stakes. The 12/1 runner at a fifth of the odds is the better each-way proposition.

Check the place terms before you stake, because a firm offering a shorter win price with an extra place can beat a longer price with fewer. Half your stake still rides on the win side of an each-way bet, and a place does not rescue that half.

Ante-post bets placed weeks earlier carry their own rule. Non-runner no bet means your stake comes back if the horse misses the race, and most firms switch to that condition on the Tuesday before the meeting. Before then, a scratched horse takes your money with it, which is the main reason ante-post prices sit longer than the day-of-race market.

What a Grand National favourite looks like

Winners at Aintree tend to be aged seven to ten, with form over three and a half miles and at least one run over the National fences behind them. The Becher Chase in December and the Grand Sefton in November give a horse that experience without the full trip, and trainers use both as a trial. A favourite who has never seen the fences faces a real unknown on the day.

The handicapper publishes weights in February and caps the top weight at 11st 12lb. Horses at the foot of the handicap carry around 10st, and the ones in between give away weight to rivals they beat last season. A horse carrying 11st 8lb over four and a quarter miles with thirty fences ahead of it needs to be a proven stayer, not a horse who has won over three.

Ground moves the market within minutes. Soft going turns the race into a stamina test and shortens the horses with form in heavy ground. Good going brings in the speedier types and lengthens the proven mudlarks. A going change on the Friday can shift the favourite's price by two points before the Saturday crowds arrive.

Where the money comes from

Turnover on the National arrives from everywhere: the crowd on the Merseyside track, the office sweepstake, the family betting slip, and the larger UK casino hotspots that take a share of the day's action. Bookmakers handle more each-way money on this one race than on any other fixture in the British calendar.

Staking a race with 34 runners

A field this size invites scattergun betting. Ten small bets across ten horses feels like coverage, and it seldom pays for itself: the win half of nine each-way bets is gone before the field turns for home. Two or three selections in the 7/1 to 16/1 range, staked at the same level, keeps the day's spending predictable and gives every bet a chance of returning something. That approach is the same one behind building a bankroll that lasts, whether the money is going on a handicap or a slot session.

Getting your winnings out

The result settles as soon as the last horse passes the post, and most UK-licensed bookmakers pay within hours. Money returns to the method you used to deposit: a debit card takes one to three working days, e-wallets land sooner, and open banking transfers often clear before the end of the day. Payout speed varies by operator, and how fast withdrawal casinos compare gives you a sense of what the quick end looks like before you open an account with a firm you have not used before.

Funding the account

Debit cards remain the standard route, with PayPal, Apple Pay, Google Pay, Trustly and Paysafecard accepted by most operators. Credit cards have been banned for gambling deposits since April 2020, so a credit card will be rejected at the funding screen. Payment habits in land-based venues have moved the same way, and cashless casino floors show how that shift is playing out on the high street.

Crypto funding sits outside that system. Most sites that take it sit outside the UK licence, and the way crypto casinos handle deposits brings conversion rates and wallet risks that a UK debit card does not. If a bet goes wrong at an offshore operator, the UKGC cannot step in.

Keeping the day in hand

The National is a long afternoon with six other races around it. Set a spending figure before the first race and treat it as the total for the day, not the stake for the first bet. Deposit limits, time-outs and reality checks sit in every UKGC-licensed account, and self-exclusion through GamStop closes the account across every licensed operator in Britain. BeGambleAware and GamCare run free helplines if the afternoon stops being fun.

An each-way bet on a 12/1 shot keeps a race alive for four and a half minutes even when your horse trails home fifth. That is the appeal, and it is the reason a race with 34 runners draws more betting slips than any other. Stake within your means, read the place terms before you sign the slip, and the biggest handicap of the year stays the best day of the season.