SoftBank finished in first place in the Pacific League during the 2017 regular season, while the BayStars advanced to the postseason after finishing in third place in the Central League. In the 2017 Climax Series, the Hawks defeated the Tohoku Rakuten Golden Eagles to win the Pacific League Championship. The BayStars defeated the Hiroshima Toyo Carp to become the Central League champions, becoming the first Central League team to finish in third place during the regular season to win a Climax Series.
The Hawks won the first three games of the series. Facing elimination, the BayStars won Games 4 and 5. Returning home, the Hawks won Game 6 to win the series, 4–2. Hawks' pitcher Dennis Sarfate, with two saves and a Game 6 win, was named the Japan Series Most Valuable Player (MVP). Toshiro Miyazaki won the Fighting Spirit Award, given to the best player on the losing team. This is the first Japan Series loss for the BayStars, having won in two previous appearances in 1960 and 1998.
Nao Higashihama started for the Hawks, pitching 5+1⁄3 innings, and allowing one run on four hits with six strikeouts. Shōta Imanaga started for the BayStars, allowing one run and five hits with 10 strikeouts in six innings. The BayStars scored all three of their runs in the sixth inning, with a solo home run by Takayuki Kajitani and a two-run home run by Toshiro Miyazaki. The Hawks scored three runs in the bottom of the seventh, including a two-RBI single by Akira Nakamura that resulted in a close play at home plate. Instant replay determined that Imamiya was safe, giving Softbank a one-run lead. Sarfate earned the save.[15]
Game 3
Seiichi Uchikawa drove in a run for SoftBank in the first inning of Game 3.
Kazuhiro Sasaki, a member of the BayStars in their 1998 championship season, threw the ceremonial first pitch. Joe Wieland started Game 3 for the BayStars, and Shota Takeda started for the Hawks. Uchikawa had an RBI single for SoftBank in the first inning. Hiroaki Takaya hit a two RBI single in the fourth inning to extend the lead to 3–0. Takeda was removed from the game after 4+1⁄3 innings. He allowing one run, a home run by López in the fourth inning, but was able to escape a bases loaded jam that inning without allowing more runs. The Hawks' relief pitchers completed the victory by pitching 4+2⁄3 innings, allowing one run on an infield single in the sixth inning. Shuta Ishikawa, the first reliever to enter the game, earned the win. Wieland, who allowed three runs in 5+1⁄3 innings, took the loss. Sarfate earned his second save of the series.[16]
With DeNA facing elimination, they started rookieHaruhiro Hamaguchi in Game 4. Hamaguchi did not allow a hit to SoftBank for 7+1⁄3 innings, when Shinya Tsuruoka hit a double. He came out of the game after allowing his second hit in the inning. Tsuyoshi Wada, starting for the Hawks, allowed two runs in five innings. Miyazaki hit a solo home run in the fifth inning, followed by a run-scoring sacrifice fly by Toshihiko Kuramoto. In the seventh inning, Shuto Takajo hit a home run for the BayStars to extend their lead to 3–0. In the eighth inning, DeNA expanded their lead when Miyazaki hit an RBI single and Takajo hit a two-run single.[17]
Rick van den Hurk started Game 5 for SoftBank, and Kenta Ishida started for DeNA. SoftBank scored in the first inning of Game 5, with a single and stolen base by Imamiya followed by an RBI double by Uchikawa. In the fourth inning, López hit a double for DeNA, and Yoshitomo Tsutsugo hit a two-run home run. SoftBank took a 4–2 lead in the fifth inning with a sacrifice fly by Despaigne and a two-run home run by Nakamura. DeNA responded in the sixth inning with an RBI double by Tsutsugo and an RBI single by Miyazaki that tied the game, 4–4. Another run scored on an error by Hawks' second basemanKenji Akashi. Yasuaki Yamasaki, DeNA's closer, entered the game with two baserunners in the eighth inning, but escaped without allowing a run. The Hawks loaded the bases against Yamasaki in the ninth inning, but he completed the save without allowing a run.[18]
Game 6
In the series, Dennis Sarfate earned two saves and the win in the deciding Game 6.
Saturday, November 4, 2017, 6:34 pm (JST) at Fukuoka Yahuoku! Dome in Fukuoka, Fukuoka Prefecture
With the series returning to the Fukuoka Yahuoku! Dome, Higashihama started for the Hawks and Imanaga started for DeNA. Nobuhiro Matsuda hit a home run for SoftBank in the second inning, and Hiroyuki Shirasaki hit a home run for DeNA in the fifth inning, tying the score. López hit a two-run single in the fifth inning, giving DeNA a 3–1 lead. Higashihama allowed three runs on five hits in 4+1⁄3 innings, while Imanaga pitched seven innings with 11 strikeouts, allowing two runs.[19]
Trailing 3–2 in the ninth inning, Uchikawa hit a game-tying solo home run off of Yamasaki. Keizo Kawashima hit the walk-off RBI single for SoftBank in the eleventh inning for the title. Sarfate pitched three scoreless innings of relief for SoftBank to earn the win.[20] Sarfate won the Japan Series Most Valuable Player Award.[19]
