A study has found that the Ulster Final generated €1.5 million for Clones, and €2.1 million for Co. Monaghan.
Croke Park have been investigating the Economic and Social Value of Gaelic Games on the Island of Ireland.
As part of their study, they analysed the 2024 Ulster Senior Football Championship Final between Donegal and Armagh in St. Tiernach's Park.
Yesterday, delegates from GAA HQ presented their findings to Monaghan County Council.
During the study, local business owners told researchers that takings are up 300% on Ulster Final Day.
Dublin native Cian Murphy is a Communications Officer at Croke Park.
Speaking to Northern Sound, he said that there is "hard independent data" that shows the impact the Ulster Final has on Clones.
Cian explained: "We interviewed businesses, supporters, the work force. One of the businesses told us that the Ulster Final is three months takings in one day.
"What happens then, people get employed and get over time- that's extra money. They spend that money in the area that they live. That's the ripple effect."
Research also found that Gaelic Games have a substantial cultural impact on Irish society.
Cian believes, that financial investment in the GAA is a solid investment.
"Health and wellbeing, the wider societal benefit- that's all wrapped up in that figure.
"You have to take away, there is a negative when people get injured. It isn't just looking for the good news story all the time, the figures have to be robust enough to take into account someone getting injured, and not being able to go to work.
"It is a phenomenal figure. For an athlete return: Every €1 invested gets a return of €2.30."
Clones native, Cllr. Pat Treanor welcomed the findings of the study.
Speaking to Northern Sound, he explained how Monaghan County Council are investing in Clones, in order to improve the matchday experience.
"The Chief Executive [Robert Burns] gave a report that he is already working with Clones GAA and the County Board at trying to bring a good investment to the community sector around St. Tiernach's Park.
"We are also working on a connecting road at the N54, across to the Roslea Road, somewhere out passed Feldhues. That too would assist spectators and traffic going to St. Tiernach's Park," Cllr. Treanor explained.