After batting .302 in 71 games, Hulett was called up by the Mariners on July 10, after the release of struggling first baseman Richie Sexson.

Hulett played one game in Seattle, going 1 for 3, before being sent back down to the Rainiers on July 18 when the Mariners called up first baseman Bryan LaHair.

On August 15, 2010, he signed a minor league deal with the Seattle Mariners and was assigned to the Triple-A Tacoma Rainiers.

On April 23, 2011, Hulett signed a minor league contract with the Washington Nationals and was assigned to the Triple-A Syracuse Chiefs.

His father Tim played 12 seasons in Major League Baseball for the Chicago White Sox, Baltimore Orioles, and St. Louis Cardinals.