The Marlins outrighted Chirinos to Triple-A Jacksonville on Thursday.
The Marlins designated Chirinos for assignment Tuesday.
Chirinos came away with a no-decision in Sunday's loss to the Phillies, giving up three runs on nine hits and a walk over 4.1 innings while striking out four.
Chirinos didn't factor into the decision Wednesday against the Cardinals, allowing two runs on eight hits over five innings. He struck out six.
The Marlins selected Chirinos' contract from Triple-A Jacksonville on Wednesday.
Chirinos signed a minor-league contract with the Marlins on Tuesday, which includes an invitation to spring training, Christina De Nicola of MLB.com reports.
Chirinos (elbow) was designated for assignment by Atlanta on Tuesday.
Atlanta transferred Chirinos (elbow) from the 15-day injured list to the 60-day injured list Tuesday.
Atlanta placed Chirinos on the 15-day injured list Monday with right elbow inflammation.
Chirinos escaped with a no-decision Tuesday in Atlanta's 8-6 win over the Pirates, surrendering six runs on seven hits -- including four home runs -- over five innings. He struck out five.