Hadokyu Battle!
Kawamura uses the one and two-handed Hadokyu, but Kabaji copies it. It then becomes a duel of whose arm will last longest.
Aired 11/12/2002EP 61 - Hadokyu Battle!
2001
The Prince of Tennis
Echizen Ryoma is a young tennis prodigy who has won 4 consecutive tennis championships but who constantly lies in the shadow of his father, a former pro tennis player. He joins the Seishun Gakuen junior highschool, one of the best tennis schools in Japan, and there along with his teamates he learns to find his own type of tennis in an attempt to defeat his biggest obstacle of all: his father as well as himself.
(Source: Anime News Network)