Kentucky Has No Casinos. It Bet $10.5 Billion on Machines That Look Exactly Like Slots.

Spinning reels, bonus rounds, a cartoon theme, and a horse race from years ago playing in a corner of the screen. That tiny race is the only reason the machine is legal.

The machines at Derby City Gaming in Louisville have spinning reels, bonus rounds and cartoon themes. Somewhere on the screen, often in a window smaller than a playing card, a horse race that was run years ago plays out in a few seconds. Almost nobody watches it. It is the only reason the machine is legal.

Kentucky has no casinos, and its constitution is the reason. What it has instead is historical horse racing, usually shortened to HHR, and the numbers make the word "instead" look generous. In the fiscal year that ended in 2025, Kentuckians put about $10.5 billion through these machines, according to state racing figures reported by the Kentucky Center for Economic Policy. In 2020 the figure was $2.3 billion.

Section 226 of the Kentucky Constitution forbids "lotteries and gift enterprises." Voters carved out a state lottery by amendment in 1988, and charitable gaming followed. A casino has never been carved out, and the usual reading is that a slot floor would need its own amendment, which means a public vote.

Racing never needed one. Pari-mutuel wagering, where bets go into a pool and the track takes a cut before paying out the winners, has been treated as legal in Kentucky for about a century. The state's identity is tied up in it, and no politician has wanted to argue otherwise.

HHR is built on that exception. Each machine draws from a library of previously run races with the names, dates and tracks hidden. The player's wager goes into a pool, the result of an old race decides the outcome, and the reels and bonus animations are there to show the result in a form a slot player recognizes. The industry's own people are open about it. An industry official told Louisville Public Media in April 2026 that the witches and goblins on the screen are "just an entertaining game theme."

The first machines went in at Kentucky Downs, in Franklin, in 2011.

In September 2020 the Kentucky Supreme Court ruled unanimously that the machines as then operated were not pari-mutuel wagering under state law. The problem was pooling: players were not betting on the same finite events against each other in the way the statute described.

It looked like the end of the business. It lasted one legislative session.

In its 2021 session the General Assembly passed Senate Bill 120, which redefined pari-mutuel wagering to include bets on races "previously run" and allowed wagers on different races to be pooled together. That covered the machines exactly as they worked, and the business did not pause.

What the court never ruled on is the constitutional question: whether a device that plays like a slot machine is, under Section 226, a lottery with a horse race attached. The 2020 case was decided on the statute. Legal writers have pointed out the gap ever since, and nothing has closed it.

The usual line about HHR is that it is a loophole, and loopholes get closed. That misreads what has happened.

A loophole is something the lawmakers did not intend. Kentucky's legislature considered these machines specifically, after its highest court had said they were not allowed, and voted to allow them. Since then the state has built a racing economy around the revenue. Louisville Public Media reported that total purses in Kentucky have roughly tripled, from about $70 million to about $220 million, and that the Kentucky Derby's purse rose to $5 million in 2024 on the strength of this money. Horsemen, breeders and tracks now depend on it. That is not a loophole waiting to close. It is policy.

The part worth arguing about is the tax. The state takes an excise tax of 1.5% of every dollar wagered. Because the machines return about 91% of wagers, the Kentucky Center for Economic Policy, a think tank that is openly critical of the arrangement, calculates that the rate works out to roughly 7.3% of what the machines actually keep, and that about $72 million a year reaches the General Fund. The same group sets that against casino tax rates in neighboring states that run from the thirties to above fifty percent. You can dispute its framing. The arithmetic is not complicated.

As of May 2025 there were 8,420 machines across 13 facilities, in cities from Louisville, Lexington and Newport to Corbin, Ashland, Oak Grove and Owensboro. Churchill Downs Incorporated opened another, Marshall Yards Racing & Gaming in western Kentucky, in February 2026. If slot-style play is what you want, you no longer need to leave the state for it.

For anything else, the river still matters. There are no live table games at an HHR venue. The state's gaming corporation did approve HHR-based electronic table games late in 2025, built to resemble roulette, blackjack and craps, but an electronic craps screen is not a craps table. Loyalty programs are also narrower: points earned at a racing venue do not carry across a national casino network.

That makes the Indiana side of the Ohio River the better trip for a table player or anyone chasing comps. Caesars Southern Indiana sits about seven miles from downtown Louisville in a straight line and earns Caesars Rewards. From Northern Kentucky, Hollywood Casino Lawrenceburg and Belterra are both across the river in Indiana, within an hour or so. Our casinos near Louisville and casinos near Lexington pages list the rest with distances, and the story of the company that owns so much of Kentucky's gaming is in our piece on Churchill Downs Incorporated.

The small race in the corner of the screen is still there on every spin. It is not decoration. It is the entire legal case.

Topics

• kentucky
• historical-horse-racing
• gambling-law
• legality
• louisville

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