The next two seasons, Stump put up identical 8–11 records with the Triple-A Charleston Senators, before receiving his second and final audition with the Tigers in 1959, pitching in 111⁄3 innings and posting another strong ERA (2.38). He played two more seasons of minor league ball — coincidentally, posting a third straight 8–11 season in the American Association in 1960 — and retired after the 1961 campaign.[2]
During his two MLB trials, Stump worked in 242⁄3innings pitched; he allowed 23 hits and 12 bases on balls, but only seven runs, six of them earned, for a career ERA of 2.19. He struck out eight.