Cashner will be pitching on nine days' rest and the team could bump him again before the season ends. One thing is for certain, the Padres won't shut Cashner down.
Cashner threw a career-high 119 pitches in his last start Saturday against the Dodgers, allowing one run on 10 hits with three walks and seven strikeouts in seven innings.
All told, Cashner has thrown 151 1/3 innings this season, far ahead of his workload from last season (69 2/3 innings).
"Cash is feeling good," said Padres manager Bud Black. "We want him to keep pitching. And he's going to make his starts. He's been great all year."
Adding right-hander Burch Smith to the rotation -- the rookie will pitch Friday against the Rockies -- has given the Padres flexibility and allowed Tyson Ross and Ian Kennedy an extra day of rest.
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.