For the eight teams hitting the field Sunday, a victory means an automatic berth in their region's semifinal.
Asia-Pacific, the Caribbean, Mexico and Japan were in action on the international side, while Midwest, Southeast, Mid-Atlantic and the West all had a chance to put themselves in a strong position for the United States.
All four losers of Sunday's games will have a chance to make a comeback, but their battle will be uphill. Here's a look at how things panned out.
Little League World Series Schedule/Results: Aug. 18
Game 13: Asia-Pacific def. Caribbean, 4-0
Game 14: Southeast def. Midwest, 11-0 (4 innings)
Game 14: Japan def. Mexico, 5-0
Game 15: Mid-Atlantic vs. West (game suspended, will resume 1 p.m. ET Monday)
Full bracket available at the tournament's official website.
Asia-Pacific 4, Caribbean 0
Suho Yang and Jinwon Na combined to throw a one-hit shutout, and Asia-Pacific's offense took advantage of costly mistakes on their way to a 4-0 win over the Caribbean.
Asia-Pacific scored three of their runs in the bottom of the fifth inning. Curley Martha walked two batters and hit another, allowing the first walked batter to advance to second on a wild pitch before he was knocked through by Been Hyun on a single. After Martha hit a batter and walked another to load the bases, catcher Shendrion Martinus committed an error that allowed two more Pacific runs to score.
Only one of Asia-Pacific's runs were earned, and they scored four runs on three base hits. The Caribbean committed three errors in a sloppy defensive performance that contributed to them being sent to the loser's bracket.
Yang pitched three no-hit innings before giving way to Na, who closed things out by giving up a lone base hit to a Caribbean offense that could not mount any momentum.
Southeast 11, Midwest 0
Liam Thyen drove in five runs, Colton Hicks added three RBI and Justin Lee threw four innings of no-hit baseball as Southeast needed only four innings for an 11-0 win over Midwest.
Southeast opened with three runs in the first, added five in the second and capped things off with another trifecta in the third. Jack Brandl was the only Midwest pitcher to not give up at least three runs.
Thyen drove in all three of the first-inning runs, plating a trio with a bases-loaded double to center field. Thyen knocked through two more in the third inning when he plated two on a sacrifice fly.
Hicks doubled in a pair as part of the five-run second inning and singled in another an inning later. Chase Obstgarten and Brady Yates also drove in runs.
Lee, meanwhile, struck out six batters and walked two in a breezy no-hit bid.
Southeast is yet to give up a run through its first two games.
Japan 5, Mexico 0
Yuto Kakeba hit a solo home run and threw 3.1 innings of a combined shutout to lead Japan to a 5-0 victory over Mexico.
Kakeba helped his own cause with a bomb to left field to give Japan a 1-0 lead in the second, and then they opened things up with a three-run third. Japan scored two of its third-inning runs via Mexico mistakes, the first being a fielding error by center fielder Ivan Sauceda and the second a wild pitch by Marcelo Herrera.
The Mexican starter was charged with all five Japan runs but only one was earned. Jesus Garza held Japan scoreless in relief of Herrera during the final 2.2 innings.
Sauceda was responsible for two of Mexico's three hits.
Ritsu Nishikawa and Yuto Misaki closed things out for Japan after Kakeba was pulled after striking out six batters in 3.1 innings. He was taken out of the game at 50 pitches to preserve his eligibility.
Daiki Kobari and Rikuto Doi were also credited with runs batted in.
Japan has outscored its opponents 25-0 through two games.