The 1946 Muskegon Lassies posted a 46–66 record in their first year, and placed sixth in the eight–team league. They improved to 69–43 in 1947, to win a close pennant race with the Grand Rapids Chicks. Muskegon was led by OF/PDoris Sams, who ranked in several offensive categories and also collected 11 victories, including a perfect game, good enough to win the Most Valuable Player Award. Notably, the team counted with three of the top four pitchers in earned run average, Sams (0.98), Amy Irene Applegren (1.06) and Nancy Warren (1.13), but lost to the Racine Belles in the best-of-five, first-round matchup 3–1.
The team dropped to 46–66 in 1949 but was able to reach the playoffs for the third consecutive year. Muskegon disposed of the Kenosha Comets in the first round, 3–1, being swept by the South Bend Blue Sox in the semifinals, 3–0.
1950 became a nightmare for Muskegon, after registering the worst record in the league (36–73) and a relocation during the midseason to Kalamazoo, Michigan, where the team was renamed the Kalamazoo Lassies.[3]
The All-American Girls Professional Baseball League Record Book – W. C. Madden. Publisher: McFarland & Company, 2000. Format: Hardcover, 302pp. Language: English. ISBN978-0-7864-0597-8
Encyclopedia of Women and Baseball' – Leslie A. Heaphy, Mel Anthony May. Publisher: McFarland & Company, 2006. Format: Paperback, 438pp. Language: English. ISBN0-7864-2100-2