Littell got the save in Friday's 5-4 win over the Rockies, recording the final out of the ninth inning via strikeout.
San Francisco entered the ninth with a 5-2 lead but closer Jake McGee served up a two-run home run and two more baserunners before Littell was called upon by manager Gabe Kapler. The 25-year-old needed just four pitches to dismiss C.J. Cron for his second save in three appearances, with a win sandwiched between them. Since being recalled Aug. 7, Littell is 1-0 with two saves and four strikeouts in 3.2 innings.