"I think he threw close to 40 pitches, and it went well," Weiss said. "We'll see how he feels tomorrow, but the plan is for him to go out and pitch on Thursday. Then we'll go from there."
Lefty Rex Brothers has taken over closer duties in Betancourt's absence, converting nine straight opportunities.
Betancourt also reeled off four consecutive saves before being sidelined by injury and has converted 15 of 16 opportunities this year.
Ian McCue is an associate reporter for MLB.com. Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, and follow him on Twitter @harding_at_mlb. This story was not subject to the approval of Major League Baseball or its clubs.