Tohoku Rakuten vs Saitama Prediction 23 August 2026
📡 Rakuten host Seibu in a matchup where the visitors have looked stronger this season and send a more reliable starter to the mound. Tatsuki Koja has already struggled against this Seibu lineup, while Natsuki Takeuchi gives the Lions a solid platform from the start. The key factor in this prediction is the contrast between Seibu’s overall stability and the limited options available to Rakuten. Rakuten vs Seibu is set for August 23 on the NPB schedule.
Head-to-Head
📊 Seibu lead the season series 8-7-1 and hold a 65-55 edge in runs scored. While the margin isn’t overwhelming, it does highlight that the visitors have generally dictated the tempo in these head-to-head clashes. Recently, Rakuten have tried to make home advantage count, but Seibu have looked sharper in games where their starting pitcher managed to get through the middle innings without a significant drop-off.
Head-to-head statistics Tohoku Rakuten - Saitama

Tohoku Rakuten Golden Eagles Team Overview
Rakuten remain near the bottom of the Pacific League standings and are still overly reliant on the form of their starting pitcher. Koji sports an ERA north of four and a negative win-loss record, so the home side will struggle to lean on reliable pitching. While the team can put up a fight at home, facing Seibu means they’ll need to capitalize on every scoring opportunity with almost no room for error. If their offense fails to strike early, the pressure will quickly shift to the bullpen.
Match Results: Tohoku Rakuten Golden Eagles

Saitama Seibu Lions Team Overview
Seibu are ahead in the standings, boast greater roster depth, and send a left-hander to the mound who has already kept Rakuten in check with quality outings. Takeuchi doesn’t need to go the distance, but his 0.96 WHIP against Rakuten suggests the hosts will struggle to string together long rallies. Seibu’s offense may not be explosive, but facing a starter with a 4.06 ERA, a few efficient innings could be enough.
Match Results: Saitama Seibu Lions
⚾ Starting Pitchers
Tatsuki Koja, a left-hander for Rakuten, enters with a 4.06 ERA over 11 starts this season. He’s posted a 1-6 record across 62.0 innings, allowing 58 hits, striking out 52, surrendering 28 runs, and carrying a 1.18 WHIP. While those numbers aren’t disastrous, they don’t provide the home side with much of a cushion against quality opposition.
Natsuki Takeuchi, the lefty for Seibu, has fared well in head-to-head meetings with Rakuten. Over 27.0 innings, he owns a 3.33 ERA, giving up just 22 hits and 10 runs while striking out 19 and posting an impressive 0.96 WHIP. Despite an imperfect win-loss record, he’s consistently limited baserunners and given Seibu reliable depth from the mound.
⭐ Editor's Pick
Rakuten are capable of keeping things close at home, but the smart money is on Seibu, with both the standings and the pitching matchup backing them up. Koja doesn’t give the hosts the level of control they need against a top-tier opponent. Takeuchi, on the other hand, can limit Rakuten’s chances and hand things over to the bullpen with either a lead or a level score. Seibu don’t need to blow the game open early; steady pressure on Rakuten’s starter and clinical execution in the middle innings should be enough. Given the current gap in quality between these sides, we’re backing a Seibu win.