ball went over the right-center field wall and was estimated to have traveled between 600 and 626 feet. It was the longest home run of Ruth's career and in 1965 was referred to as "probably the longest home run ever hit in Detroit." In 1927, Stoner's ERA dropped by 1.5 points to a career-low 3.98, and he appeared in a career-high 38 games for the Tigers, including 24 starts. Despite the improvement, he registered a losing record of 10–13. Stoner's production declined in his final two years with the Tigers. He started only 11 games in 1928 and was used principally in 25 relief appearances. In 1929, he started only three games and made 21 relief appearances for a total of 53 innings pitched. 1930–1933 In late July 1929, the Tigers sold Stoner back to the Fort Worth Panthers. Pitching for Fort Worth in the second half of the season, he compiled a 6–4 record and a career-low 2.00 ERA. In mid-September 1929, the Pittsburgh Pirates purchased Stoner from Fort Worth. He began the 1930 season with the Pirates but pitched only regular seasons innings for the club, compiling a 4.76 ERA. In mid-May, the Pirates released Stoner outright to the Fort Worth Panthers. Following his return to Fort Worth, Stoner appeared in 30 games, compiling a 14–6 record and a 3.19 ERA. On July 30, 1930, he struck out 18 strikeouts in a game against the San Antonio Indians. It was the most strikeouts by a Texas League pitcher since 1909. In September 1931, following another strong showing in Fort Worth, the Philadelphia Phillies purchased Stoner from the Fort Worth club. He suffered from a hand injury that limited his playing time with the Phillies. He appeared in only innings for the Phillies, compiling a 6.59 ERA. He appeared in his final major league game on June 10, 1931. Stoner was returned by the Phillies to Fort Worth in mid-June 1931. It was Stoner's third stint with the Panthers. He appeared in 13 games for Fort Worth in 1931, 12 as a starter, and compiled an 8–3 record and 2.60 ERA. On August 12, 1931, the Fort Worth club sold Stoner to the Newark Bears of the International League. He appeared in 10 games for Newark, compiling a 2–0 record and a 5.34 ERA. When Newark failed to win the International League pennant, Stoner was returned to Fort Worth.