Monkey Turn

is a Japanese manga written and illustrated by Katsutoshi Kawai. The manga was serialized in Shogakukan magazine Shōnen Sunday from 1996 to 2005. The manga spawned two anime series, Monkey Turn and Monkey Turn V, which were both produced by Oriental Light and Magic and aired on TV Tokyo throughout 2004. The manga series won the Shogakukan Manga Award in the shōnen category in 2000.

Plot
Kenji Hatano, is a young man who sets out to master conquer the world of kyōtei (hydroplane racing).