Constitution River Looks to Confirm Dominance in an Eclipse Stakes That Could Make History for O'Brien

The son of Wootton Bassett will spearhead a three-pronged attack for the trainer and the Coolmore partnership, as they pursue an unprecedented fourth consecutive victory in the prestigious Sandown Park showpiece

Just a few weeks after capturing the G1 Prix du Jockey Club in Chantilly, France, Constitution River faces the kind of test this Saturday that defines true greatness. The Coral-Eclipse Stakes (G1), contested over 2,000 meters with a £1,000,000 purse at Sandown Park, will feature the remarkable son of Wootton Bassett as he leads the classic three-year-old crop against their older counterparts—a legendary cross-generation formula that has made this race a definitive midsummer centerpiece of the British calendar for over a century.

The 2026 renewal carries immense historical weight. Already holding the absolute record with nine victories in the showpiece, master trainer Aidan O’Brien is bidding to become the first conditioner in history to win the Eclipse in four consecutive seasons, following the recent triumphs of Paddington (Siyouni), City of Troy (Justify), and Delacroix(Dubawi). No trainer has achieved such a dominant four-year streak since the race was first run in 1886.

The Ballydoyle maestro initially looked set to saddle a lone stable star, but surprised the racing world by confirming both Constitution River and Hawk Mountain (Wootton Bassett), the first and second-place finishers from the French Derby. While O'Brien had indicated for days that only one of the two would travel to Sandown, he ultimately opted for a rematch after being thoroughly impressed by their final morning gallops.

This development further strengthens a powerful Coolmore contingent that also includes Flushing Meadows (Wootton Bassett). Conversely, Causeway (Wootton Bassett)—who remains unbeaten in five starts this season following a brilliant victory in the G2 King Edward VII Stakes at Royal Ascot—was not sustained at the final declaration stage.

Naturally, all eyes will be locked on Constitution River. Since a narrow defeat on debut, the bay colt has put together a flawless string of high-profile performances. He closed his juvenile campaign by landing the G2 Futurity Stakes, resurfaced at three with a devastating 7-length romp in the Listed Dee Stakes at Chester, and then proved his class at Chantilly. Despite a complex trip from an unfavorable draw, he dug deep to defeat Hawk Mountain by three-quarters of a length to secure the French classic. With regular pilot Ryan Moore back in the irons, he will line up as the heavy favorite to further embellish a resume that already places him at the summit of his generation.

Hawk Mountain needs little introduction either. A winner of the G1 Futurity Trophy at Doncaster at two and a decisive winner of the G3 Prix de Guiche upon his return, he proved in Chantilly that he belongs at the absolute highest level. The main question mark for him surrounds the underfoot conditions; the forecast calls for good, good-to-firm in places, a surface that Ballydoyle connections admit might not suit his characteristics as well as code with more moisture.

If anyone possesses the credentials to shatter the Irish hegemony, it is Gethin (Ghaiyyath). Representing Wathnan Racing for trainer Owen Burrows, the colt enters on the back of a stellar runner-up effort behind Ombudsman (Night of Thunder) in the G3 Brigadier Gerard Stakes over this very track and trip—a vital piece of course experience over rivals making their Sandown debut. James Doyle retains the mount, while the same connections will also saddle the Harry Charlton-trained King's Gambit (Saxon Warrior), who could ensure an honest, testing tempo.

Another older horse commanding utmost respect is Saddadd (Pinatubo), from the Roger Varian yard. A winner of the G3 Gordon Richards Stakes over this course, he arrives fresh off a commendable third-place finish in the G1 Tattersalls Gold Cup and boasts a level of track familiarity few in the field can match.

The Irish challenge is rounded out by A Boy Named Susie (Starspangledbanner), trained by Donnacha O'Brien, who checked in fourth in the French Derby behind his re-opposing compatriots. The final field promises a tactical battle that will be as demanding as it is fascinating.

The Coral-Eclipse is historically far more than a mere Group 1 contest; it is a proving ground where generations collide and future icons are identified, demanding that classic-winning sophomores prove they can handle the elite older horses.

This Saturday, it may write yet another golden chapter in the phenomenal legacy of Aidan O'Brien, or it may serve as the definitive coronation for Constitution River as the new undisputed titan of European racing. The answers will be delivered on the track, with beautiful Sandown Park serving as the perfect stage.