The purchase has been made official following approval from the New Hampshire Lottery Commission.
Chasers is located close to downtown Boston, a charitable gaming operator offering poker among a variety of table games.
Churchill Downs says it plans to construct an expanded charitable gaming facility in Salem, installing up to 800 gaming positions which will include historical racing machines as well as table games.
The company’s expansion plans, including the purchase price, are expected to cost approximately $150m.
Churchill Downs CEO Bill Carstanjen said: “We are excited to build upon the success of Chasers with CDI’s proven excellence in historical horseracing operations and a new facility.
“It is a privilege to have the opportunity to meaningfully support nonprofits in New Hampshire as the leading gaming operator in charitable contributions.”
New Hampshire will represent the fourth state in which Churchill Downs will operate historical horseracing games.
Other states where the company operates historical horseracing include Kentucky and Louisiana. The company plans to operate historical horseracing in Virginia too, upon the close of its pending Peninsula Pacific Entertainment acquisition.
Churchill Downs is a racing, online wagering and gaming company, famously known for its flagship event – the Kentucky Derby.
Recently, the company posted a record Q2 2022 revenue of $582.5m, an amount $67.4m greater than the previous year.
This year also saw the Kentucky Derby record a significant income increase of $231.3m compared to the Covid-restricted 2021 event.