Pitching coach Don Cooper said the hope is that Peavy goes five innings and throws 75 pitches in the Barons game at Montgomery.
Peavy, who is recovering from both his latissimus dorsi reattachment surgery last July and rotator cuff tendinitis that developed this spring, is then in line to pitch Wednesday as well as April 18, 23 and 28.
"Those are his numbers," Cooper said.
If any of those dates will be starts in the major leagues remains to be seen. Peavy will have to be ready to throw 100 pitches in a game before he can return to the White Sox and he won't reach that mark until April 23.
April 28 seems to be a more realistic return date, but Cooper wasn't making any promises.
"Listen nothing is etched in stone because who knows something may come up, god forbid," Cooper said. "So those are his days to throw and we'll roll with whatever comes our way. Could it be earlier? It could. Could it be later? It could. We'll just have see how things lay out."
As for Peavy's spot in the rotation Saturday, the first time the No. 5 spot will be needed this year, Phil Humber is still in line to make that start despite pitching two innings Wednesday at Kansas City.
"Right now he's preparing to start," Cooper said. "But we have to see what happens. Strange things can happen like a couple extra-inning games. So we're ready for anything. Somebody will be out there Saturday and right now it's scheduled to be Phil."
Doug Padilla covers the White Sox for ESPNChicago.com and ESPN 1000.