, In July 1920, Rogan and Dobie Moore joined the Monarchs. Rogan quickly became the premier pitcher and biggest box-office draw in the young league. By his third season with the Monarchs, 1922, he hit .390, and his 13
home runs were good for second in the league. On August 6, 1923, Rogan combined with teammate and manager
José Méndez to pitch a no-hitter against the
Milwaukee Bears, Méndez pitching the first five innings and Rogan the last four. That season he hit .364 with a league-leading 16 wins and 151
strikeouts to lead the Monarchs to their first pennant. In 1924 Rogan hit .395 while compiling an 18–6 record and leading the Monarchs to their second league title. That winter he led the 1924/25
Cuban League with nine victories for the champion
Almendares club. Rogan may have reached his peak in 1925, leading Kansas City to its third straight league championship with a 17–2 record and a .381 batting average. However, before the World Series rematch with Hilldale, Rogan suffered a knee injury while playing with his young son. Forced to undergo surgery, he missed the series. Without their star, the Monarchs were defeated in six games. The following season, Rogan took over from José Méndez as manager of the Kansas City Monarchs. In that season's NNL playoffs against the
Chicago American Giants, he pitched and lost both games of a series-deciding doubleheader to the younger
Bill Foster. As late as 1928 at the age of 34, Bullet Rogan was the best hitter (.358) and arguably the best pitcher (10–2) on the Monarchs. Rogan continued at the Monarchs' helm in 1929 when they won their fourth NNL championship and recorded the best record (62–17) in the history of the league. On April 29, 1930, in
Enid, Oklahoma, Rogan played for the Monarchs in baseball's first night game. In August he was hospitalized with an undisclosed illness. He remained out of the lineup for more than a year, finally returning on September 28, 1931. When Wilkinson did not organize a Kansas City Monarchs team for 1932, Rogan joined a white independent team in
Jamestown, North Dakota, where he played until August. He batted .315 and went 20–3 as a pitcher before returning to the reorganized Monarchs in September. In the winter of 1933 and 1934, Rogan returned to Hawaii and the Philippines as a member of the Philadelphia Royal Giants, a black all-star team. The Royal Giants toured Japan and China as well. In 1936, at the age of 43, Rogan appeared in the
East-West All-Star Game. ==Rogan as player and manager==