Jockey Ruby Walsh was unseated at the last fence while riding the favourite in consecutive races at Naas Racecourse on Saturday.
Walsh came off Footpad, which had odds of 4-9 in the 12:30 GMT Poplar Square Chase, as Saint Calvados won the race.
He then came off 13-8 favourite Saldier in the Fishery Lane Hurdle at 13:05 GMT, won by Espoir D'Allen.
The two-time Grand National winner and two-time Gold Cup champion, 39, has failed to finish his last four races.
On 4 November at Cork, he fell from Minella Beau and Robin Des Foret.
Walsh will go again in three races at Navan on Sunday.