Pride FC: Bushido 1[4] Is an event held by the Pride Fighting Championships at the Saitama Super Arena in Saitama, Japan on October 5, 2003.
In the main event, Dos Caras, Jr. became the first Hispanic fighter to compete in Pride and the first to wear a lucha libre mask during a bout.
He is now better known as WWE pro wrestler Alberto Del Rio.
This event was host to the semi-finals and finals of the 2003 Pride Middleweight Grand Prix tournament.
The first round of the tournament was contested at the Pride: Total Elimination 2003 event the previous August.