April 18, 2017 vs Yokohama at Mazda Stadium – Aizawa recorded the first walk-off hit of his career. With runners on second and third and one out, he recorded a walk-off single to center off Spencer Patton.
Source: Sanspo 4/18/2017
September 3, 2017 vs Yakult at Jingu Stadium – Aizawa recorded the first two-homer game of his career. He hit a two-run home run off Hirofumi Yamanaka in the second inning and a solo home run off Kazuki Kondo in the sixth inning.
Source: Daily Sports 9/3/2017