It was a second British classic training success for the successful handler, Joseph O’Brien, who previously won the Betfred St Leger with Galileo Gold.

The second English classic of the season saw nine fillies go to post – four of them trained by an O’Brien, one by Joseph, and three by his father Aidan.

Wow. Wow. Wow!

𝐓𝐡𝐮𝐧𝐝𝐞𝐫𝐢𝐧𝐠 𝐎𝐧 brilliantly wins the Betfred Oaks at Epsom pic.twitter.com/3ev8KpXbjH

— Racing TV (@RacingTV) June 5, 2026

Amelia Earhart (7/4f), the choice of Ballydoyle stable jockey Ryan Moore was the race favourite, with the Colin Keane-ridden Legacy Link (3/1) the second choice of the bookies.

Sugar Island and Ronan Whelan set the early pace, closely followed by stable companion Cameo, the mount of last season’s Epsom Derby-winning rider Wayne Lordan.

The eventual winner, Thundering On, was towards the rear of the field for much of the one mile four furlong race.

Once into the home straight, the chestnut daughter of Frankel, out of Thundering Nights, struck for home alone the stands’ side rail.

”It was effortless.” @DylanBrowneMcM reflects upon Thundering On’s extraordinary victory in the @Betfred Oaks @EpsomRacecourse pic.twitter.com/1u4pB6lb2t

— Racing TV (@RacingTV) June 5, 2026

Colin Keane, wearing the Juddmonte Farms colours aboard Legacy Link, soon looked the biggest danger to the Salsabil Stakes winner.

Despite the strong challenge of the Dubawi filly, Legacy Link, Thundering On held on comfortably for a three-and-three-quarter length victory to give Donegal rider McMonagle a first British classic success.

The John and Thady Gosden-conditioned Legacy Link took the runner-up position ahead of the outside of the Ballydoyle trio, Sugar Island (25/1).

Amelia Earhart and Ryan Moore finished sixth.

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