Arena Leisure has announced the temporary closure of Folkestone racecourse at the end of the 2012 season.
Meanwhile, it was also announced that Hereford racecourse will face permanent closure.
The racecourse fixtures currently staged at Hereford and Folkestone will be transferred to other racecourses within the group.
The company stated that Folkestone may re-open in the future, subject to negotiations with Shepway Council.
Tony Kelly, managing director of Arena and Northern, said: “Hereford is owned by Herefordshire County Council and run under a lease arrangement.
“Attempts to extend the lease, which has 17 years remaining, have been unsuccessful. Despite being unviable for several years we have supported the racecourse but much-needed investment, required to breathe new life into the racecourse, cannot be justified in the absence of a long-term future for the business.
“Folkestone suffers from out-dated facilities and has been the subject of detailed discussion between the previous management, Arena Leisure, and Shepway district council for several years now.
“The proposal for the site incorporated significant residential development, which would have enabled a new racecourse to be constructed with much enhanced amenities.
“However, these plans have been delayed following the recent examination in public of the local plan. Discussions will continue with Shepway district council in the hope that there will be approval of development plans which would secure the future of the racecourse. If they succeed, work to reconfigure the racecourse could commence in 2013.
“Every effort to continue trading at these racecourses has been explored but it is with regret that a variety of circumstances means that this is no longer possible, therefore both Hereford and Folkestone racecourses will therefore cease trading at the end of the 2012 season.
“The fixtures will be transferred to other racecourses within the group, where we will be able to offer increased prize money and better quality facilities for connections and racegoers alike.”