Chafin recorded two outs in the eighth inning of Thursday's 10-3 win over the Rockies. He gave up one hit and struck out a batter.
Chafin entered the contest with no outs and a runner on second base, and after notching a strikeout and inducing a groundout, he allowed the runner to score on an infield single. Manager Torey Lovullo subsequently pulled Chafin from the contest, but J.J. Hoover came in to close out the inning and keep an earned run off Chafin's ledger. Chafin now sports a 1.85 ERA and 34 strikeouts in 24.1 innings this season, making him arguably the Diamondbacks' top reliever after Archie Bradley.