Leopardstown and the Curragh will welcome back crowds of 4,000 for each day of the Longines Irish Champions Weekend.
Horse Racing Ireland confirmed the increase in capacity for the high-profile meetings on 11 and 12 September in a statement, which follows Tuesday's Government announcement of a relaxation in Covid-19 restrictions.
During this week’s briefing from Taoiseach Micheal Martin, details emerged stipulating attendance up to 75% of capacity would be permitted at outdoor events from next Monday, 6 September.
HRI will plan for a 50% limit from that date in outdoor spaces on course and 60% of indoor capacity, the latter restricted to those able to provide evidence of their Digital Covid Vaccine Cert as fully vaccinated individuals.
In accordance with the Irish Government’s roadmap, those limits are set to rise to 100% if the planned lifting of all restrictions comes into effect on 22 October.
In the meantime, both Leopardstown and the Curragh will next week stage a "mixed outdoor event with access to the indoor spaces, but with proof of a vaccine required for those consuming food and beverage indoors".
Listowel’s Harvest Festival, from 19-25 September, will be subject to a limit of 2,000 per day and it will be an "outdoor-only event".
That figure too, however, is a significant increase on the current numbers – which are capped at 500, although 1,000 were permitted through the gates exclusively at both the Galway Festival and for a Government pilot event when the Curragh hosted the Irish Derby in June.
HRI chief executive Brian Kavanagh described the return of crowds as an "essential ingredient" racing has had to get by without during the coronavirus pandemic.
He said: "It has been a very difficult 18 months for everybody in society, and racing can be proud of the way it has come through it.
"However, without racegoers, racing has been missing one of its essential ingredients.
"Like many industries, there is still much work to do, but there is now real progress and forward steps to normality. Welcoming back racegoers in measured but increasing numbers is one of those steps – and from Monday, Irish racecourses will be free to use 50% of their capacity to allow racegoers back on the track in real numbers."
Tickets for both days of Irish Champions Weekend will go on sale on Friday to members of the public who have registered their interest in advance. The remainder will go on general sale on Monday, 6 September.
Tickets for Listowel are already on sale.
