Saturday, June 6, 2026

Rio Moon Becomes Eighth Recent Horse Fatality at Churchill Downs

  • Rio Moon, a three-year-old colt, was euthanized Sunday after suffering a leg injury on the track.
  • Five horses died at Churchill Downs in the weeks before the Kentucky Derby, and two died on race day.
Eight horses have died recently at Churchill Downs
Syndication: The Indianapolis Star

Rio Moon, a three-year-old colt, died after a race Sunday at Churchill Downs, becoming the eighth horse fatality in recent weeks at the site of the Kentucky Derby. 

Rio Moon was euthanized after he “suffered a catastrophic injury to his left foreleg a few strides after the wire,” according to notes in the race’s Equibase chart cited by the AP. The horse, trained by Dale Romans., had career earnings of $11,621 and had been ridden by Martin Garcia.

Before the Kentucky Derby on May 6, seven horses died at Churchill Downs, including two who were euthanized after being injured in undercard races on the day of the race. Five others were euthanized after training and racing incidents at the track in the days leading up to the Derby. 

Churchill Downs indefinitely suspended Saffie Joseph Jr. after the deaths of two horses he trained — Parents Pride and Chasing Artie. Lord Miles, another horse trained by Joseph, was scratched from the Kentucky Derby as part of his suspension.

Amid the continued tragedies, the global horse racing market is estimated to be worth $402 billion. Churchill Downs announced that this month’s Kentucky Derby set a new betting handle record of $288.7 million wagered on the race.

Mage won this month’s Kentucky Derby to earn $1.86 million for his owners, which include users of the Commonwealth investment app.

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

May 2, 2026; Boston, Massachusetts, USA; Philadelphia 76ers guard Tyrese Maxey (0) drives past Boston Celtics guard Jaylen Brown (7) during the first quarter of game seven of the first round of the 2026 NBA Playoffs at TD Garden.

First Round of NBA Playoffs Reaches 33-Year Viewership High

Game 7 of the 76ers-Celtics series averaged 11 million viewers.

Kentucky Derby Breaks Viewership Record with 19.6M

The Kentucky Derby is one of the most-watched U.S. sports events.

Panthers Owner Viola Wins Second Kentucky Derby

Golden Tempo’s rally to victory marks the second Derby win for Viola.
John Fanta

NBC Bets on a Bigger Kentucky Derby Weekend

The Oaks moved to primetime, and Fanta will report from the infield.

Featured Today

Ai sports slop

How Sports Became Ground Zero for AI Slop

The category is the perfect breeding ground for AI content churn.
FILE PHOTO: Soccer Football - FIFA World Cup - UEFA Qualifiers - Group A - Germany v Luxembourg - Rhein-Neckar-Arena, Sinsheim, Germany - October 10, 2025 Germany coach Julian Nagelsmann
June 4, 2026

‘Weird Corners of the World’: How to Find a World Cup Coach

National associations look for a winning record—and also hope for serendipity.
June 3, 2026

The Elite High Schools Hosting World Cup Teams

Spain, Morocco, Croatia, and Switzerland chose schools as their tournament base camps.
Frances Cabral-Delaney
May 29, 2026

How Arsenal Fandom Went ‘Manic’

“People do not become Arsenal fans because it’s easy,” says Zohran Mamdani.
Reuters FILE PHOTO: Kalshi logo appears in this illustration created on April 22, 2026.

DraftKings Cofounder ‘Loves’ Prediction Markets Despite Attacks

Matt Kalish credits Kalshi with fighting legal and regulatory battles for the entire industry.
May 24, 2026

Sportradar Hit With Lawsuit Over Alleged Illegal Gambling Ties

The suit alleges investors were harmed by shady overseas business conduct.
May 26, 2026

Trump Decries Prediction-Market Detractors As ‘Scum’

The president’s son is an investor in Polymarket and an advisor to Kalshi.
Sponsored

Landon Donovan: What Soccer in America Still Needs

Landon Donovan discusses the evolution of soccer in America and investing in the NWSL.
Mark Cuban
May 20, 2026

Mark Cuban: ‘Betting Isn’t the Problem’

These wagers have been behind the recent MLB and NBA gambling scandals.
Jun 12, 2025; Washington, DC, USA; Gov. Tim Walz (D-MN), left, alongside Gov. JB Pritzker (D-IL), right, and Gov. Kathy Hochul (D-NY), not shown, testify before the House Committee on Oversight and Government Reform during a hearing on state immigration enforcement policy in Washington, D.C., on June 12, 2025.
May 19, 2026

Trump Admin Sues Minnesota to Block Prediction-Market Ban

Minnesota is the sixth state the federal regulator has sued.
DraftKingsApp
May 18, 2026

DraftKings Cofounder: Kalshi Is Years Away From Competitive Product

Kalshi responded with a gif from the movie “Mean Girls.”
May 9, 2024; Columbus, OH, USA; Sports are shown on TVs behind the bar as guests enjoy the grand opening of DraftKings Sports & Social in the Short North. Though there are no on-site betting windows, eligible customers can place bets through the DraftKings app.
May 15, 2026

Gambling Layoffs Pile Up As Sports Betting Industry Recalibrates

Penn Entertainment headlines three companies with layoffs this week.