William Hill unveils £500,000 Grand National bonus

William Hill has unveiled the ‘William Hill Half a Mill’ Randox Grand National bonus series, which offers £500,000 to connections of any horse that can complete a famous trial and Randox Grand National double in the same season.

The lucrative bonus is available to the winners of the William Hill Becher Chase at Aintree, the William Hill Classic Chase at Warwick and the William Hill Grand National Trial at Haydock – if they can go on to triumph in the Randox Grand National at Aintree on Saturday 11th April 2026. It will see the prize money for the world’s greatest race double to £1million.

This innovative new incentive aims to rejuvenate the competitiveness of the route to the National, looking to reward connections who try to emulate the likes of One For Arthur, who won the Classic Chase before going on to Grand National glory in 2017. 

Expecting the £500,000 prize to be popular, the leading bookmaker is quoting 8/1 for any horse to win the William Hill Half A Mill bonus this season.

William Hill are also delighted to announce their new status as an Official Betting Partner of The Jockey Club, strengthening their existing relationship with the UK’s premier racecourse operator. The leading bookmaker has consolidated its ties to the Jockey Club as part of a new agreement showing its commitment to the future of British horse racing.

Across the County Hurdle at the Cheltenham Festival, Cheltenham’s Showcase Meeting, the Grade One Formby Novices’ Hurdle and Old Roan at Aintree, as well as key ARC events such as the Lincoln and Futurity Trophy, plus Newbury’s Super Saturday, the leading bookmaker is continuing to show its support to the sport in Britain at an uncertain time.  

Mark Howarth, William Hill’s Director of Racing, said: “We are thrilled to launch the William Hill Half A Mill bonus this season. The Grand National has a special place in the British sporting calendar and we're excited to further elevate the build-up, and to encourage as many Grand National hopes to run in some very recognised trials for the world’s greatest race.

“This prize injection is a real incentive for connections as they plot their route to Grand National glory and we can’t wait to celebrate and follow those who take on this challenge. 

 “It’s also incredibly exciting to see William Hill become an Official Betting Partner of The Jockey Club. Over recent years William Hill and The Jockey Club have worked together on a host of key race sponsorships and betting partnerships, and we’re excited to strengthen our relationship with the racecourse group behind some of Britain’s best racing festivals. This agreement further shows our commitment to British racing, and we are delighted to be working even more closely with The Jockey Club.” 

Dickon White, Regional Director North West at The Jockey Club, said:“We’re delighted to be supporting William Hill with this fantastic initiative in the build up to the Randox Grand National. The introduction of the William Hill Half A Mill will generate a real excitement throughout the season and we hope to incentivise some of the leading Grand National contenders to try out their credentials in one of the three qualifying races. 

“William Hill have been a long-term supporter of The Jockey Club and we are pleased to add them to our suite of Official Betting Partners. This new partnership and bonus incentive highlight the ongoing commitment and investment into British racing from William Hill. We look forward to working with the William Hill team and potentially seeing our first winner of the William Hill Half A Mill in April 2026!”

William Hill Becher Chase at Aintree (Sat 6 Dec)

William Hill Classic Chase at Warwick (Sat 10 Jan)

William Hill Grand National Trial at Haydock (Sat 14 Feb)