The Giants have plenty of pitching questions heading into the 2027 season, and the list gets thin fast after Logan Webb and, most likely, Landen Roupp. Webb is the one proven piece in the mix, but the rest of a staff that finished 27th in baseball last season is still very much up for grabs as Buster Posey shapes the 26-man roster.
That uncertainty is why an unexpected name from Japan has entered the conversation. In a joint free agency prediction piece with Nicholas Selbe, Will Laws of Sports Illustrated projected the Giants to hand Kaima Taira of the Seibu Lions a three-year, $36 million deal.
There’s obvious risk in betting on a pitcher with no Major League experience, but Taira’s resume in NPB gives the Giants plenty to think about. In 2026, he posted a 1.36 ERA across 146 innings with 141 strikeouts. That kind of production alone would make him hard to ignore.
The underlying traits are just as appealing. Taira works with a fastball in the mid-90s that can reach triple digits, and he pairs it with a sinker and a broader mix of pitches.
What really separates him, though, is the way he attacks hitters from a low slot. His release height is just 4.9 feet, lower than 97% of MLB pitchers, and he gets as much as 6.8 feet of extension.
That means the ball is on hitters even faster than the radar gun suggests.
Taira’s background also adds to the appeal. Before breaking out as a starter last year, he spent years in Seibu’s bullpen and piled up 31 saves in 2025.
He never posted an ERA higher than 2.40 during that stretch. If the Giants want him to start, great.
If that doesn’t stick, he still brings value as a late-inning arm, which matters for a bullpen that also needs help.
Still, the fit isn’t clean. The jump from Japan to MLB is real, and not every pitcher handles it the same way.
Taira’s results in Seibu were excellent, but there’s no guarantee they carry over. The source points to Tatsuya Imai and the Astros last season as a reminder that the transition can go sideways.
There’s also the walks issue. Taira has consistently carried a walks-per-nine rate beginning with a 2, and at times it has climbed above 3. That could give the Giants pause, especially after they ranked sixth-worst in baseball in walks allowed last season.
Then there’s his frame. At 5-8 and 209 pounds, Taira doesn’t look like the typical frontline starter in today’s game.
Marcus Stroman is the comparison that comes up, but even that example comes with a caveat since Stroman isn’t close to 200 pounds. For all the positives here, body type is one more question the Giants would have to weigh.
Even with those concerns, Taira belongs on the Giants’ free agency board. His arsenal fits Oracle Park, his release point is rare, and his ability to work both as a starter and out of the bullpen gives him extra value.
The upside is real. So are the drawbacks.
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