Dwight Gayle was among the goals as Crystal Palace eased to a 4-0 win against League of Ireland side Waterford United.
Ian Holloway named a strong line-up and summer signing Stephen Dobbie put the Eagles ahead after 28 minutes.
With a tough opening Premier League fixture at home to Spurs, Palace will be looking to start the season high on confidence but it took them until 15 minutes from time to add to Dobbie's opener.
The former Swansea man was again heavily involved as his exchange of passes with Gayle allowed the £8million forward to make it 2-0.
Another young striker, Ibra Sekajja, was then gifted possession to add the third and trialist Osman Sow wrapped up the win with a well-taken injury-time volley.