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Japan’s Top Court Rejects Appeal in Tabelog Ratings Dispute, Confirming Platform’s Win

The decision makes final the Tokyo High Court’s view that Tabelog’s 2019 algorithm change was reasonable with no proven market harm.

Overview

  • The Supreme Court’s First Petty Bench, led by Chief Judge Toru Sakai, dismissed the restaurant chain’s appeal on March 5.
  • Hanryumura, which operates the KollaBo chain, alleged a 2019 update cut its Tabelog scores by up to 0.45 points and reduced customers and revenue.
  • A 2022 Tokyo District Court ruling had ordered Kakaku.com, Tabelog’s operator, to pay ¥38.4 million for abusing a superior position.
  • The Tokyo High Court in 2024 overturned that judgment, finding the scoring adjustment had rational aims and that a ratings drop alone did not prove serious competitive harm.
  • The Supreme Court’s unanimous four-judge decision, reported by Jiji, confirms Kakaku.com’s reversal win and ends the damages claim.