The Yomiuri Giants grinded out a 1-0 win over the DeNA BayStars with solid pitching and fielding Sunday to even the Central League Climax Series final stage at three games apiece. The Giants, who entered the stage with a one-win advantage as league champions, dropped the first three games but took the next two to force a decisive Game 6 on Monday for a spot in the Japan Series. Iori Yamasaki pitched 6-1/3 innings and three relievers protected a one-run lead given by Raito Nakayama’s fifth-inning home run at Tokyo Dome. Yomiuri shortstop Makoto Kadowaki threw out a runner at home plate in the s…