On March 16 and 17, a number of outsiders triumphed, counterbalancing a set of outcomes that were more favourable to customers on March 14, when five favourites won.
Consequently, Flutter's brands in the UK and Ireland closed the week on a positive note.
Two players won £100,000 and £200,000 on March 14 and 15, respectively, during the Sky Bet-sponsored ITV7 free-to-play event.
Meanwhile, a 20p "Lucky 63" gamble that yielded seven winners brought home €75,000 ($80,600) for an Irish Paddy Power retail client in Kildare.
"It was another memorable Cheltenham, and it was pleasing this year to see the Festival's mass market appeal mirror the recreational nature of our customer base," stated Dom Crosthwaite, Chief Trading Officer of Flutter.
"With a string of recent product upgrades and marketing campaigns, we delivered an excellent customer proposition for our flagship brands, resulting in strong staking levels of well over £250m."
"Our brilliant colleagues at Flutter UK&I, who worked incredibly hard to manage over 37 million online bets seamlessly throughout the week, made all of this possible."
Flutter and PA Betting Services have signed a pact to prolong their multi-year collaboration.
As per the deal, Flutter's brands, namely Paddy Power and FanDuel, will get race data from PA Betting Services.
Throughout the whole week of the Cheltenham Festival, including Gold Cup day, Gambling Insider was on hand.