⚠️ Notice

Please read the following before using this API.

• This is unofficial. It has no relationship with the BOATRACE official website or related organizations.
• This is not real-time. Data is updated periodically about every 10 minutes via GitHub Actions, so there may be a delay of roughly 10–20 minutes before the latest information is reflected.
• Accuracy and completeness are not guaranteed. Due to collection and conversion constraints, missing or incorrect data may be included.
• If you need official information, always check the BOATRACE official website.
• Use at your own risk.

📝 Overview

This API provides boat race (kyotei) data. The data is published on GitHub Pages and provided in JSON format.

🌐 Endpoint

Supported period: From 2026-01-01 onward

https://boatraceopenapi.github.io/api/v1/YYYY/YYYYMMDD.json

• YYYY → year
• YYYYMMDD → year, month, and day
• Dates are based on Japan Standard Time…