The United States have qualified for baseball's first Olympic appearance since 2008 ©Getty Images

The United States have become the fifth team to qualify for baseball's return to the Olympic Games after going unbeaten at the Americas qualifier in Florida.

The US defeated Venezuela 4-2 in their final match to end the super round with three wins from three at the top of the standings.

It was not all plain sailing at the Ballpark of the West Beaches, however, and Venezuela had the bases loaded with one out in the first inning, but American starter Matthew Liberatore got out of the jam, inducing a ground ball and a double play.

Two-time Major League Baseball All-Star Todd Frazier started that double play and also led the way offensively, with four hits including a home run.

Venezuela did take the lead in the third inning, through a solo shot from Hernán Pérez, but Eric Filia's two-run homer the next inning, scoring Frazier, gave the US a lead they would never relinquish.

Frazier drove home runs in the fifth and seventh innings, either side of another Venezuelan run, and 4-2 was how it finished.

The US join hosts Japan, Beijing 2008 champions South Korea, Mexico and Israel in qualifying for the Olympics.

Venezuela will now head to Mexico for a last-chance global qualifier.

Joining them will be the Dominican Republic, who beat Canada thanks to an eighth-inning rally and finished the super round in second place.

Trailing 4-5, Gustavo Núñez and Julio Rodríguez each drove in a run with the team down to two outs as the Dominicans took a 6-5 lead they would hold onto.

Pitcher Jairo Asencio struck out all three batters he faced in the ninth inning to earn the save.

The Netherlands and Australia will be the other two teams at the global qualifier after China and Chinese Taipei both pulled out.

A lone Olympic berth will be up for grabs at the event.