Jacquez (1-0) earned the win after holding the Czech Republic to only one hit in four shutout innings. Deshorn Lake (St. Thomas, Virgin Islands) added four strikeouts and held the Czech Republic to one unearned run on one hit in two innings pitched.
The 15 total strikeouts, which came in only six innings, ties for the third most in 16U National Team history. The Americans did not issue a walk in the victory.
The U.S. took a 1-0 lead in the bottom of the first. The inning began with a one-out triple to right by shortstop Francisco Lindor (Clermont, Fla.). Second baseman Kevin Kramer (Turlock, Calif.) then drove in Lindor with a sacrifice fly to left.
A three-run second inning pushed the U.S. lead to 4-0. Third baseman C.J. Hinojosa (Spring, Texas) drew a leadoff walk before advancing to second on a groundout by first baseman Kenny Mathews (Diamond Bar, Calif.). After Hinojosa moved to third on a balk, Jacquez brought him home with an RBI double to left center. Center fielder JoMarcos Woods (Orlando, Fla.) followed with an RBI single through the right side to score Jacquez. Woods would then steal second and advance to third on a groundout by left fielder Austin Cousino (Dublin, Ohio). Lindor then laced his second triple of the game to right-center to bring in Woods.
The U.S. added four runs with two outs in the bottom of the third to go ahead 8-0. Hinojosa singled to right-center and stole second to get the inning going. Following a walk to Mathews, Jacquez singled to left, driving in Hinojosa and moving Mathews to third. Woods then hit a high fly ball down the left-field line that got away from left fielder Richard Kania and rolled to the wall. Woods would turn on the jets and score on an inside-the-park home run, sliding in safely under a tag at home.
A six-run fourth inning extended the American lead to 14-0. Catcher Evan Powell (Lake Charles, La.) and right fielder Albert Almora (Hialeah, Fla.) drew back-to-back walks to start the frame. Following a double steal, Hinojosa laced a two-run single to left to score Powell and Almora. Hinojosa would steal second, and, after Mathews flew out to left, Jacquez was hit by a pitch. Hinojosa and Jacquez would both advance a base on a balk before Woods sent a sacrifice fly to center to score Hinojosa. After Cousino was hit by a pitch, Lindor singled through the left side to drive in Jacquez. Kramer followed with a two-run single up the middle, scoring Cousino and Lindor to cap the inning.
The Czech Republic scored an unearned run on a wild pitch in the top of the fifth to make it a 14-1 ballgame.
In the bottom of the sixth, Lindor, Kramer and catcher Shaun Chase (Phoenix, Ariz.) drew three consecutive walks to load the bases. The Czech Republic then brought in Michal Zyma to face Almora. Zyma would only throw one pitch, as Almora blasted a game-ending grand slam over the left field wall to finish the scoring at 18-1.
Woods finished the game 2-for-2 with an inside the park home run, five RBIs and two runs scored. The five RBIs tie for the third most in a single game in 16U National Team history. Lindor went 3-for-3 with two triples, two RBIs and three runs scored. The two triples ties for the most in a single game in team history.
Almora was 2-for-4 with a grand slam and two runs scored, Jacquez went 2-for-2 with a double, two RBIs and three runs scored, and Hinojosa finished 2-for-2 with a pair of RBIs and three runs scored. Kramer went 1-for-3 with three RBIs and a run scored, and Cousino was 2-for-4 with a double and a run scored. Powell, Mathews and Chase all scored once in the win. Powell also drew three walks, which ties for second most in team history.
Marko Vykoukal (0-1) suffered the loss after allowing four runs on six hits in two innings pitched.
Kania had both hits for the Czech Republic.
Team USA will face the Netherlands on Monday at 10 a.m. local time (10 p.m. EDT on Sunday).