The head-to-head record between India and Japan is not directly provided in the given evidence. However, the evidence does mention a head-to-head record between two specific players, P.V. Sindhu of India and Akane Yamaguchi of Japan.
According to the evidence, P.V. Sindhu and Akane Yamaguchi have a head-to-head record of 3-4 in their previous matches. This information is provided in the article “P.V. Sindhu vs Akane Yamaguchi head-to-head: Complete record ahead of Japan Open 2026 final” by Sportstar.
The article does not provide any information about the overall head-to-head record between India and Japan. It only focuses on the head-to-head record between the two players.