Tuesday’s preseason game between the Yakult Swallows and Fukuoka SoftBank Hawks gave me a chance to see some players for the first time. So here are my notes on some players of interest. Because the game was at PayPay Dome in Fukuoka, the Hawks’ home broadcast displayed most pitches’ spin rates.

This took me back to talk in my scouting course of average rates for MLB. But before you get into that, have a look at this nifty article about spin efficiency by Trevor Powers. As far as I understand it, fastball movement can be improved, without increasing spin, by throwing the ball so that the spin axis is perpendicular to the direction of the ball.

As I watched the game after reading this — with knowledge of the spin rates different pitchers put on their deliveries — who is more or less efficient. The Fighters and Giants played at night, and I got a good look at Nippon Ham’s top pick Ryusei Kawano.

RHP Yuki Tsumori, Hawks

A 22-year-old right-hander (born 1/21/1998), Tsumori was the Hawks’ third draft pick last autumn out of Tohoku Fukushi University. He throws straight side-arm, with 142 kph velocity on his fastball and a sweeping slider. He threw five pitches and missed most of his spots.

RHP Noboru Shimizu, Swallows

A 23-year-old right-hander (born 10/15/1996), Shimizu was Yakult’s top pick in 2018 and had a rough 1st year, allowing frequent walks and home runs. Because he only threw 26 innings with the big club, he still qualifies as a rookie.

Shimizu throws 3/4. He sat at 147 kph with some hop on the fastball. He threw forkball, that Data Stadium identified as a two-seamer that got him swings and misses, and threw a curve that he didn’t command well, but looks like it could be good in time as he can spin that puppy about the MLB average of 2,500 RPM.

LHP Yuto Furuya, Hawks

Furuya is a 3/4 lefty, who is 21 (born 2/19/1999) who was Softbank’s second pick in 2016. He is described as having a fastball with good movement, but they were fairly straight on Tuesday, and he missed lots of targets.

LHP Hiroki Hasegawa, Swallows

Hasegawa is a 3/4 lefty who is also a SoftBank product, having signed with them out of the 2016 developmental draft. His fastball touched 153 kph with spin rates close to 2,400 RPM. The fastball command was spotty. He also had a forkball that tumbled and missed bats. He’s 21 (born 8/23/1998) and there’s a lot to work with.

LHP Ryusei Kawano, Fighters

The 21-year-old 3/4 lefty (born 5/30/1998) was Nippon Ham’s top draft pick last year. Against Yomiuri on Tuesday, he showed a 147-kph four-seamer that he sometimes had terrific movement on. His command improved as the game went on, and he then showed:

• Slider, one that sweeps and one that drops
• curve he can throw at different speeds
• A splitter (looked like his sweeping slider though)
• A forkball change that he gets on top of and runs it away from right-handed hitters like a screwball.

His delivery has a funky, start-stop to it. In this game, he kept everything down, but given how well he manipulates the ball, he has a lot of room for growth and adjustment. At first glance, he reminds me of a left-handed Tomoyuki Sugano although the command will have to come. The fastball, change, and curve are all above average with a lot of upside.