Huismann began the season with the Royals, but after going 0–2 with a 6.75 ERA in thirteen appearances, he was optioned back to triple A Omaha. He was far more effective when he returned in July, going 3–1 with a 2.79 ERA and three saves over the rest of the season. He made his only post season appearance in game one of the 1984 American League Championship Series against the Detroit Tigers.