Big Windup! (Japanese: おおきく振りかぶって, Hepburn: Ōkiku Furikabutte), often shortened to just Ōfuri (おお振り), is a baseball manga series by Asa Higuchi, serialized in the monthly seinen Afternoon magazine since 2003. It has been adapted into an anime TV series, animated by A-1 Pictures, which premiered in Japan on TBS.