The Frank Ward Solicitors Arkle Novice Chase has been switched from Sunday's card at Leopardstown to Saturday's because of concerns over the chase course with a forecast of further rain.
The Grade One contest changes places with the Ryan's Event Cleaners Beginners Chase run over the same trip of two miles and one furlong.
In another change, the Listed Solerina Mares Novice Hurdle, which should have been run at Fairyhouse last weekend, has been transferred to Leopardstown's Sunday card. Fresh entries for this race will close at noon on Wednesday.
Leopardstown chief executive Pat Keogh said: "We have made this decision early to give as much time as possible to owners and trainers to make their arrangements.
""The decision was made to ensure that we were able to run the Frank Ward Solicitors Arkle Novice Chase over the weekend. With all the uncertainty over the weather we have decided to err on the side of caution."
Six horses remain in the Irish Arkle, in which the Willie Mullins-trained Arvika Ligeonniere will be going for a Grade One hat-trick after winning the Drinmore and the Racing Post Novice Chase. Stablemate Twinlight, winner of the Craddockstown Novice Chase, is also in.
Oscars Well, trained by Jessica Harrington, could again take on the likely favourite, despite having been brushed aside by Arvika Ligeonniere at Leopardstown over Christmas. Stablemate Burn And Turn could also take her chance.
Tony Martin has left in Benefficient, while Klepht completes the contenders.
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