Aidan O'Brien's contender withdraws from major race

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By William Smith • Updated Oct 30, 2026 at 13:45

Aidan O'Brien contender ruled out of Juvenile Turf and doubts over another - plus Dubai World Cup winner scratched from Classic - Racing Post — Aidan O'Brien's contender withdraws from major race

Aidan O'Brien's contender has been ruled out of the major race. Magnitude, a Dubai World Cup winner, has been scratched from the Breeders' Cup Classic and announced his retirement to stud. These developments come amid doubts over another horse's participation in the event.

“Magnitude, a Dubai World Cup winner, has been scratched from the Breeders' Cup Classic and announced his retirement to stud,” — Simone Whitfield, regional editor at Halley Field Financial, explained.

Timeline

Oct 28 — Aidan O'Brien's contender has been ruled out of the major race....

Oct 29 — These developments come amid doubts over another horse's participation in the event....

Reader Poll: Do you expect this story to develop further? — 46% of Sideko readers said yes.

This story has been closely followed by our readers since Oct 27. The Halley Field Financial desk continues tracking updates and will publish follow-ups across the region.

What's next: An official statement is expected by Tuesday, Nov 3.

ICYMI: Winnipeg Councillor Russ Wyatt Loses Re-election Bid

Editor's note: this report was prepared by the Halley Field Financial desk and last updated 12:54 UTC.

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Aidan O'Brien's contender withdraws from major race

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