 He began the year with a 28–3 record, but moved on in midseason to manage another UA team, the Kansas City Cowboys; Fred Dunlap took over in St. Louis, compiling a 66–16 record as the Maroons won the UA pennant in the league's only year of existence.Kansas City was a dismal 3-17 when Sullivan took over managerial duties, going 13-46 the rest of way.During his time in Kansas City, he also made his only three field appearances, playing two games in right field and one as a shortstop; he collected three hits in nine at bats.