Who Owns Britannia? Can Britain's America's Cup Challenge Reach Naples While the High Court Sorts Out Ratcliffe and Ainslie?

Sir Jim Ratcliffe's INEOS and Sir Ben Ainslie's Athena Racing are now in the Admiralty Court over who owns the America's Cup yacht raced as Britannia, still bound for Naples.

There is a peculiarly British sort of argument that begins with a race around the Isle of Wight, runs through a century and a half of trying to win back a silver cup, and ends up in the Rolls Building on Fetter Lane, which is not, as a rule, where yachtsmen prefer to settle their differences. INEOS Racing Limited, the company through which Sir Jim Ratcliffe's group backed Britain's recent America's Cup campaigns, has brought a claim in the Admiralty Court against Athena Racing Limited, the company the High Court has described as Sir Ben Ainslie's corporate vehicle for his quest since 2013 to secure a British victory in the oldest international trophy in sport. The case is Ineos Racing Limited v Athena Racing Limited, number AD-2026-000043, and the approved judgment of Mr Justice Andrew Baker, handed down on 16 October 2026 and published by The National Archives, is the clearest official account yet of what the court is being asked to decide.

The background, as the judge set it out, is a written partner agreement dated 31 May 2021, under which INEOS sponsored Athena's campaign for the 37th America's Cup. Athena, which had earlier raced as Land Rover BAR and, with INEOS's backing, as INEOS Team UK and then INEOS Britannia, was competing for the Royal Yacht Squadron, the Cowes club that put up the original cup in 1851. In Barcelona in 2024 the British team, with Ainslie as team principal and skipper, reached the America's Cup Match itself, the first time a British boat had done so since 1964. GB1, the name under which Athena now campaigns, says it was also the first British team to win the challenger series, and the official America's Cup site records that the challenge was Britain's most successful in more than 90 years, with the country's first Match win since Sir T.O.M. Sopwith's team in 1934. The Match was then lost 7-2 to the defenders, Emirates Team New Zealand, racing for the Royal New Zealand Yacht Squadron, a result recorded in the judgment and not in dispute.

The partnership did not survive the winter. According to the judgment, INEOS notified Athena in January 2025 that it would not renew the contract. The BBC, reporting on 23 January 2025, quoted INEOS as saying it could "not find agreement" with Ainslie on "terms to move forward", and said INEOS then planned to compete in the next Cup under the Britannia name. Ainslie's team, which would be known as Athena Racing, told the BBC it was "astounded" by those plans and that they raised "significant legal and practical obstacles". Ratcliffe, in the INEOS statement reported by the BBC, did not address the split directly but said he was "enormously proud" of "developing a British boat that was truly competitive for the first time in decades". In April 2025 INEOS abandoned its own challenge for the 38th Cup in Naples. In a statement reported by the BBC, the company said an agreement that would have allowed both parties to compete "depended on a rapid resolution", that INEOS Britannia "had agreed the substantive terms very quickly, but Athena failed to bring the agreement to a timely conclusion", and that a six-month delay had, in INEOS's opinion, "undermined its ability to prepare for the next Cup". Ratcliffe called it "a very difficult decision" and said that, with input from the Mercedes F1 engineers, "we had a real chance to win at the next Cup. Unfortunately, the opportunity has slipped away." Those are INEOS's account of the talks, not findings by a court.

Athena, meanwhile, stayed in the game. The official America's Cup site now lists GB1, led by Sir Ben Ainslie and sailing under the flag of the Royal Yacht Squadron Ltd, as the Challenger of Record for the Louis Vuitton 38th America's Cup in Naples, with the Match due to start on 10 July 2027. The High Court recorded that Athena is set to compete again for the Royal Yacht Squadron under a Yacht Club agreement dated 19 October 2024, and that, from the start of the Challenger Series to the completion of the Cup, AC38 is scheduled for 22 May to mid-July 2027. In December 2025 the BBC reported that Athena Racing had sold a majority stake to the private equity firm Oakley Capital, with Ainslie retaining a significant shareholding and remaining as team principal. Ainslie told the BBC that splitting with INEOS after the "fallout" was "a difficult decision" but stemmed from "different opinions on how to move forwards with the team", and he told Reuters, "It's been pretty stressful. But I believed in the team, I believed in the partnership and I was willing to take that risk." GB1's own account is that Oakley Capital, the investment firm co-founded by managing partner Peter Dubens, has taken a majority ownership investment in the team.

The argument then moved from the dock to the lawyers. On 21 March 2026 INEOS said it was "taking legal steps" for the boat to be returned. "INEOS is surprised that the boat we built for the last America's Cup has been taken by Athena Racing," the statement, reported by the BBC and The Guardian, said. "The boat belongs to INEOS and it is inappropriate to assume it can be used for the next competition without seeking our permission. The boat was the most successful British boat in history and cost INEOS £180m and evolved naturally from the first boat, which cost a further £170m." GB1's response, also reported by both outlets, said the team appreciated INEOS's sponsorship and support over the last two campaigns, but added, "It should come as no surprise to INEOS that assets which are owned by, and have always been in the possession of Athena Racing are being used for AC38." The High Court claim followed in April 2026.

What INEOS is asking the court for is set out in the October judgment. The main claim is that, by operation of clause 4.2.7 of the 2021 contract, Athena became obliged to transfer to INEOS the assets it had acquired using INEOS's funding, and that INEOS is entitled to specific performance of that obligation, or damages in lieu, or damages for breach. There is a further claim about the extent of Athena's obligations to account for, or otherwise provide information about, its use of that funding. The assets in issue, the judge said, "are extensive and varied" and "include, but are therefore very far from limited to, the racing yacht that competed as INEOS Britannia in AC37, and a range of other race and support boats." INEOS also has an alternative claim for rectification of the contract if the clause does not mean what INEOS says it means, and, the judge recorded, an alternative case that Athena is liable even on Athena's construction of the clause. The meaning of clause 4.2.7 is itself sharply disputed. Among the questions the court has been asked to consider is whether any right to instruct a transfer of assets for no consideration depends on Athena, or Ainslie through another company, not having been able to find financial support or sponsorship for continuing America's Cup campaigns after the agreement ended.

The sums attached to the campaign have been put in slightly different ways, and none of them has been determined by the court. In its March statement INEOS said the Barcelona boat cost it £180 million and had evolved from a first boat that cost a further £170 million. In the October judgment, Mr Justice Baker recorded that INEOS's total funding under the 2021 contract "is said to have been about £170 million". The Telegraph, quoting the claim, reported a figure of approximately £174 million for the design, construction and testing of the racing yacht and related assets. Athena is defending the proceedings. The meaning of the contract is in issue, and, according to The Telegraph, which said it had seen the defence, Athena also argues that INEOS does not come to equity with "clean hands" and alleges "reprehensible and improper" behaviour, which INEOS denies. Those are pleaded allegations, not findings of the court.

The latest official word on the timetable came on 16 October 2026, at a case management conference in the Admiralty Court. INEOS had applied for a trial of preliminary issues, including a short hearing, proposed for April 2027, on the proper construction of clause 4.2.7, which would have fallen before the Naples Match. Mr Justice Baker dismissed that application and directed that the claim should proceed towards a single trial of all issues. An orderly process leading to that trial "in, as it would be, January to February 2028" was, he said, "not an unattractive, inconvenient, or disproportionate way of determining this claim". He noted that proceedings had been commenced only six months earlier and that the parties could fairly anticipate a final resolution in the High Court within two years. Unless the case is settled or the timetable later changes, that points to a trial after the America's Cup Match in Naples, which the official event site says starts on 10 July 2027. The court has not decided who owns the boat, and it has not granted INEOS the transfer it seeks.