The Pacific League champion Hokkaido Nippon Ham Fighters marked their regular-season finale with a 3-1 win over the Chiba Lotte Marines on Friday.
Nippon Ham, which last won the league in 2014 before it was beaten at the Japan Series by the Yomiuri Giants, was presented with the PL pennant after the game before a packed crowd of 41,138 at Sapporo Dome.
"Thank you for fighting with us throughout the year," skipper Hideki Kuriyama said. "We will go together to get what we left behind four years ago. We'll give our best performances and definitely become the best in Japan."