ONE PIECE Episode 170: Fierce Midair Battle! Pirate Zoro vs. Warrior Braham!
Episode 170 of 1180 of ONE PIECE, aired October 19, 2003, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Zoro fights the Shandian warrior Braham, and defeats him with One Sword Style: 36 Caliber Phoenix technique.