On April 11, the 446th episode of the One Piece television
anime series recorded a Kantō-area television rating of 13.8% — the highest rating the series has earned since moving to its current Sunday 9:30 a.m. timeslot in Fall of 2006. One Piece's previous high mark in this timeslot was 13.0%, set on March 7.

While other television programs has seen their ratings steadily drop in recent years, the top three anime series (Sazae-san, Chibi Maruko-chan, and One Piece) have largely maintained or even increased their ratings. From Fall of 2006 to Spring of 2009, One Piece's ratings largely stayed close to 10.0%. After publicity grew for the 10th One Piece film, television episode #421 earned a record post-move high rating (at the time) of 12.0% on October 11. Throughout last month, One Piece stayed at 11.9% or higher.

The 10th One Piece film, One Piece Film Strong World, earned over 4.7 billion yen (about US$50 million) at the Japanese box office since it opened last December. The 57th and latest volume of Eiichiro Oda's original One Piece manga had a record 3-million-copy first printing, and 2.17 million copies have been sold as of April 4.