 Richard started eight games with the Bears in 1973 and posted minor league career-worsts in ERA and hits allowed per nine innings. Despite his poor performance with the Bears, Richard was again called up by the Astros. Richard entered in the fourth inning of a June 16 game against the St. Louis Cardinals and his idol Bob Gibson. He pitched four innings of one-run ball and three innings of a two-hit game in his next relief outing. Afterwards, the Astros placed Richard in the starting rotation, and he made his first major league start since July 30 of the previous year. He pitched six solid innings of a one-run ballgame and struck out six while walking three batters. Richard would make his next start four days later. Richard again pitched more than six innings but earned no decision after the Astros' bullpen gave up nine runs during the top of the ninth inning.
