Alex Carpenter had a goal and assist, while captain Hilary Knight and Joy Dunne also scored for the Americans, who improved to 8-0 over the Czechs in international play. Aerin Frankel, making her Olympic debut in net, stopped 13 shots.
Barbora Jurickova scored Czechia’s lone goal. She was set up on a breakaway as she exited the penalty box to cut the Americans lead to 3-1 midway through the second period. Klara Peslarova finished with 37 saves in an outing Czechia was out-shot 31-9 through two periods.
The Czechs are making just their second Olympic appearance, and lost to the Americans in quarterfinal round of the 2022 Beijing Games. They are 0-6 against the U.S. in world championship play, including a 2-1 loss in the semifinals in April.