Another offseason brings another wave of Nippon Professional Baseball stars heading to Major League Baseball. This winter’s posting class features four standout names: Munetaka Murakami (Swallows), Kazuma Okamoto (Giants), Tatsuya Imai (Lions), and Kona Takahashi (Lions). Taken together, it’s arguably one of the strongest NPB groups ever posted in the same year. Murakami is a generational talent; Okamoto has been one of the premier sluggers of the 2020s; Imai offers legitimate ace upside; and even Takahashi has a chance to get an MLB offer.
With a 45-day negotiation window, Murakami must sign by December 22, Imai by January 2, and both Okamoto and Takahashi by January 4. If any of them fail to reach an agreement by their respective deadlines, they will simply return to their NPB clubs.
Veteran reliever Takahiro Norimoto (Eagles), an international free agent, is also seeking an MLB opportunity, though he’s probably more likely to stay in Japan. Several American starting pitchers who elevated their careers in NPB are also weighing a return to the United States, including Foster Griffin (Giants), Jon Duplantier (Tigers), Anthony Kay (BayStars), and Andre Jackson. Right-hander Cody Ponce is also worth mentioning, as he just set the KBO single-season strikeout record and spent three seasons in NPB from 2022-2024.
Over the past month, I’ve released player profile videos on Murakami, Okamoto, and Imai. I’ve also made various podcast appearances (and will continue to do more) to break down everyone’s outlooks in greater depth. Please give them a watch if you’re interested.
1B/3B Munetaka Murakami
Murakami bursts into the Majors as one of the most prodigious sluggers ever produced in the land of the rising sun. Across 892 games, the Tokyo Yakult Swallows third baseman launched 246 home runs and slashed .270/.394/.557 (165 wRC+).
He won the 2022 CL Triple Crown and MVP while showcasing one of the greatest offensive years in NPB history with a .318 average, 56 homers, 134 RBI, and a 225 wRC+ in 141 games. He regressed from 2023-24 but rebounded in 2025, smashing 22 homers with a 1.043 OPS in just 56 contests, showcasing the same elite power that has defined his career. His max exit velocity even reached 117 mph, putting him on par with global superstars like Aaron Judge or Kyle Schwarber.
However, the 25-year-old has serious swing-and-miss concerns. He’s struck out around 30% of the time over his past three seasons, the worst rate in NPB during that span by a considerable margin, a red flag rarely seen in successful MLB transitions. Defensively, Murakami is likely limited to first base or DH after posting well below-average metrics at third, though he runs decently well for his size and should not be a total liability on the bases.
His high-variance profile means he could fall short of his mega contract expectations and resemble a very volatile, Joey Gallo-type three true outcomes machine. But the Kumamoto native also has the potential to become a perennial All-Star with 35-45 homer upside, in the mold of Matt Olson, Rafael Devers, or Nick Kurtz. Murakami’s raw talent is generational, and at his age, he has the ceiling to continue developing into one of the most feared power threats in the world.
1B/3B/LF Kazuma Okamoto
Okamoto, a 29-year-old slugger for the Yomiuri Giants, is the first position player in franchise history to be posted to MLB after a remarkably consistent career that included six straight 30-homer campaigns from 2018-23 and a .277/.361/.521 line (147 wRC+) across 1,074 NPB games.
Despite missing time with an elbow injury in 2025, he led all NPB hitters (min. 200 PA) with a .327 average and 214 wRC+, hit 15 homers in 69 games, and struck out just 11%. He also posted a strong 90% in-zone contact rate, dramatically better than Murakami’s 73%, which highlights the gap in their bat-to-ball skills.
The Nara native draws comps to Seiya Suzuki, pairing elite pull-side lift with a stable foundation of quality plate skills. On the field, he’s likely to settle in at first base, though he also has experience at third base and in left field. In the short term, Okamoto remains firmly in his prime and should make a relatively smooth transition as an impact bat.
RHP Tatsuya Imai
Imai, the 27-year-old ace of the Saitama Seibu Lions, is heading to North America after delivering a career-best 1.92 ERA and 156 ERA+ across 163 ⅔ innings in 2025.
Armed with a mid-to-high 90s fastball and an unorthodox “reverse” slider as his primary weapons, the right-hander led all NPB qualifiers with a 28% strikeout rate and continued a multi-year trend of lowering his walk rate all the way to 7%. Improved command, along with progress on his other secondaries like the changeup, splitter, vulcan, and curveball, allowed him to find more consistency and perform better against opposite-hand hitters.
The Tochigi native enters the MLB market as one of the top available free agents and is poised for a $140+ million contract. His profile draws some comparisons to Luis Castillo, Joe Ryan, and Kodai Senga, with clear top-of-the-rotation upside, so long as his once-shaky control and left-handed splits hold up.
RHP Kona Takahashi
