Cubs’ Shota Imanaga: Mastering the Art of Defense Hidden in His Off-Speed Pitches!

So, why doesn’t Imai allow runs? Shohei Tateyama, former ace of the Yakult Swallows, explains, “The key is his ‘slider without corners’ that he can consistently throw in the zone.”

“In a typical pitcher’s slider, there’s a point where it sharply breaks—a corner. However, Imanaga’s slider lacks that and curves smoothly. Moreover, he can change the axis of rotation, controlling the timing and amount of break freely. He throws four different types of sliders: a count ball, a slider that subtly breaks in on hitters, one that bends sharply from the ball zone into the strike zone, and a slider that starts as a strike before breaking into a ball to induce swings and misses.

His control is outstanding as well. At his former team DeNA, pitchers weren’t used if they couldn’t consistently pitch inside to right-handed hitters, a philosophy that stemmed from the days of Manager Ramirez. Yokohama Stadium, their home ground, is compact, prone to home runs due to the sea breeze. Major League hitters, with their long limbs, stand farther from the plate, making the inside more accessible. Thanks to this adjustment, Imanaga can pitch inside effectively. By emphasizing this aspect, his changeup, with depth, becomes even more effective.”

What fosters his command of breaking pitches is the ideal pitching form unique to Japanese pitchers.

“The upper body lacks tension, shifting weight smoothly, and releasing in a blink of an eye. It’s a unique form akin to ancient martial arts, rare among Major League pitchers. Moreover, while it appears as a straight trajectory to the batter, sliders and changeups have trajectory changes resembling side-arm pitchers. It’s difficult for batters to anticipate, making it very challenging to strategize against.” (Tateyama)

Refining a few pitches to the utmost—Imanaga’s dominance, rightfully dubbed as a samurai, continues.

From the June 7-14, 2024 issue of FRIDAY