Paul Doolin's side ran out comfortable winners thanks to a Steven Kinsella double plus goals from Daniel Mandroiu and Gerry McDonagh in the first of two friendly encounters with the Czechs. The sides meet again at the same venue on Monday afternoon (12.00pm).
The Czechs looked dangerous early on with Ondřej Šašinka threatening an opener in the 14th minute with a powerful strike from 20 yards out that whistled narrowly over.
Six minutes later a flowing Czech move saw Inter Milan striker Dominik Smékal lead a counterattack before supplying Dominik Breda who swept the ball to Daniel Novák and he set up Ondřej Lingr for a low strike that Irish keeper Eric Donnelly did well to turn wide.
In the 28th minute Shane Hanney had Ireland's first real chance when he shot over from eight yards out after the visitors failed to clear a JJ Lunney corner-kick.
Two minutes later Daniel Novák drew out another impressive save from Donnelly with a low shot that looked set for the bottom corner.
Ireland should have gone ahead in the 33rd minute when Lunney's ball forward was turned in the direction of McDonagh by the energetic Mandroiu. McDonagh burst forward but his powerful strike was well saved by visiting keeper Filip Truksa.
In the 37th minute Ireland went ahead when Mandroiu turned the ball home from a low shot across the face of goal from Trevor Clarke after a deep Kinsella cross from the right.
After the break the Irish took control and on the hour Steven Kinsella curled home brilliantly into the top corner from outside the penalty area after an excellent passing move.
Ondřej Chvěja came close for the Czechs in the 81st minute but he blasted over after the home defence failed to clear a dangerous free-kick.
Ireland went 3-0 up in the 85th minute when Kinsella steered the ball home after keeper Truksa parried a Brandon Payne strike following good work by Lunney.
The fourth Irish goal came in the 91st minute when Gerry McDonagh headed home from a Corey O'Keeffe cross after a Luke Wade-Slater attack down the right.
"It was an excellent performance against a good Czech side and I'm obviously very pleased," said Doolin.
"Although we didn't have a lot of time to work with the players ahead of the game I think there is credit to everybody that the players took the information on board and applied it very well.
"The attacking play was very pleasing and you have to be happy with scoring four goals but I was also very pleased with the defending."
REPUBLIC OF IRELAND: Eric Donnelly, Luke Wade-Slater, Jonathan Lunney, Darragh Leahy, Shane Hanney, Corey O’Keeffe, Steven Kinsella, Jamie Gray, Gerry McDonagh, Daniel Mandroiu, Trevor Clarke. Subs: Brandon Payne for Gray 63 mins; James Doona for Clarke 63; Leo Donnellan for Mandroiu 80.
CZECH REPUBLIC: Filip Truksa, Libor Holík, Prokop Fárek, Ondřej Lingr, Ondřej Šašinka, Dominik Breda, Alex Král, Martin Samiec, Daniel Novák, Dominik Smékal, Ondřej Rudzan. Subs: Patrik Haitl for Novák 46; Ladislav Hejl for Samiec 63; Emil Tischler for Breda 63; Ondřej Chvěja for Lingr 76; Ladislav Mužík for Šašinka 76.
FIXTURES & RESULTS
U18 International Fixture
Saturday, November 28, 2015
Republic of Ireland 4-0 Czech Republic, Home Farm FC, Whitehall
Monday, November 30, 2015
Republic of Ireland v Czech Republic, Home Farm FC, Whitehall (12.00pm)