Justin Dunn height - How tall is Justin Dunn?

The Mariners selected Dunn's contract and promoted him to the major leagues on September 10, 2019. He made his major league debut on September 12 versus the Cincinnati Reds, allowing two runs over ​⁄3 of an inning.

MLB.com ranked Dunn as New York's third best prospect going into the 2018 season. He began the season with St. Lucie and was promoted to the Binghamton Rumble Ponies during the year. In 24 starts between the two clubs, Dunn was 8–8 with a 3.59 ERA.

On December 3, 2018, the Mets traded Dunn, Jay Bruce, Jarred Kelenic, Anthony Swarzak, and Gerson Bautista to the Seattle Mariners for Edwin Díaz, Robinson Canó, and $20 million. He spent 2019 with the Arkansas Travelers, going 9–5 with a 3.55 ERA over 25 starts. He was named to the 2019 All-Star Futures Game.

Dunn was drafted by the New York Mets in the first round of the 2016 MLB draft. He signed with the Mets and was assigned to the Brooklyn Cyclones, where he spent all of 2016, posting a 1–1 record with a 1.50 ERA in 11 games (eight starts). He spent 2017 with the St. Lucie Mets where he went 5–6 with a 5.00 ERA in 20 games (16 starts).

The Los Angeles Dodgers selected Dunn in the 37th round of the 2013 Major League Baseball draft. He did not sign and attended Boston College to play college baseball for the Boston College Eagles. As an 18-year-old freshman in 2014, Dunn pitched ​12  ⁄3 innings. He went 1–1 with a 7.30 earned run average (ERA) and 12 strikeouts. As a sophomore, he appeared in 20 games with three starts. A month into the season he became the team's closer. He finished the year 4–4 with a 4.94 ERA, 46 strikeouts and five saves. After the 2015 season, he played collegiate summer baseball with the Cotuit Kettleers of the Cape Cod Baseball League. Dunn started his junior year as the closer, but was moved into the starting rotation during the season. He recorded a 2.06 ERA with a 4–2 record in his junior season.

Justin Warren Dunn (born September 22, 1995) is an American professional baseball pitcher for the Seattle Mariners of Major League Baseball (MLB). Dunn played college baseball at Boston College and was selected by the New York Mets with the 19th overall pick in the first round of the 2016 MLB draft.