The Nike marathon shoe Obori, borrows its name from the Obori (officially pronounced Ohori), park situated within the running course.
Because the shoes were originally launched from Onitsuka Tiger shoes, a championship held in Japan became the origin for its name.
However, when Jon Anderson wore the Nike Obori and won the Boston Marathon, Nike decided to change the name into Boston !
Whatever the background and trivia, these shoes were named boston by the goddess of Victory who smiled upon Anderson :)