Ampai to be Adopted as Official Score Aggregation App for Japan Professional Mahjong League; Operations to Begin April 1 for All Leagues of 43rd Housen and 21st Joryu Ouka
Ampai, a mahjong game score aggregation app, will be officially adopted by the Japan Professional Mahjong League for its "Housen" and "Joryu Ouka" leagues, starting April 1, supporting over 6,000 games annually.
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- 📰 Published: April 1, 2026 at 20:00
Ampai, a mahjong game score aggregation app, has been officially adopted by the Japan Professional Mahjong League as its official score aggregation application. The adoption covers all leagues of "Housen" and "Joryu Ouka." Through Ampai, we aim to streamline score aggregation, management, and sharing, providing players, operators, and fans with a more visible and engaging mahjong viewing experience.
About the Japan Professional Mahjong League
The Japan Professional Mahjong League, established in 1981, is Japan's largest professional mahjong organization with over 1,000 members. Its professional league, "Housen," is a prestigious title match with a history spanning over 40 years.
About Ampai
Ampai is a mahjong game score aggregation app that allows users to input game results from their smartphones and automatically reflect and share rankings, cumulative points, and score trends. Since its release in 2023, it has surpassed 5,000 users in approximately one and a half years and has been adopted as an official tool for the individual qualifying rounds of World Mahjong TOKYO 2025.
Overview of Adoption
The goal is to achieve smoother score management and clearer information sharing across all leagues of "Housen" and "Joryu Ouka," which represent the Japan Professional Mahjong League. Ampai will aggregate over 6,000 games (hanchan) annually from both title matches, delivering real-time game results for each table and hanchan to fans.
Score management by Ampai will commence on April 1, 2026, starting with "The 43rd Housen A1 League, 1st Round, Table A."
*Please check the official X (formerly Twitter) updates of the Japan Professional Mahjong League for the score confirmation URLs for each league.
https://x.com/JPML0306
Expected Benefits of Ampai's Adoption
・Easier to follow game results and ranking changes in real-time
・Visually clearer understanding of the overall league flow and the current standing of key players
・Reduced effort in aggregation and sharing, and fewer transcription errors
・Easier to deliver information to stakeholders and fans not present at the venue
Comment from Saaya Muraoka, Representative of Ampai
It is a great honor to have Ampai adopted by the Japan Professional Mahjong League, an organization that has long led competitive mahjong.
Ampai is not just a tool for aggregating game results; it is a product designed to convey the excitement of league matches and the journeys of players to a wider audience.
Through its introduction in "Housen" and "Joryu Ouka," two of the mahjong world's leading leagues, we will diligently continue operations and improvements to make competitive mahjong more accessible and engaging for players, stakeholders, and fans than ever before.
Future Outlook
Ampai will continue to strive for a better mahjong viewing experience for players, operators, and fans alike, by updating mahjong league score management and viewing experiences.
Service Overview
Service Name: Ampai
Contact Information for this Matter
Ampai Inc.
Contact Person: Saaya Muraoka
Email: info@ampai.jp
FAQ
Which leagues will Ampai be introduced to?
Ampai will be introduced to all leagues of the Japan Professional Mahjong League's "Housen" and "Joryu Ouka."
When will score management by Ampai begin?
Operations will commence on April 1, 2026, starting with "The 43rd Housen A1 League, 1st Round, Table A."
What are the benefits for fans with Ampai's introduction?
Fans will be able to follow game results and ranking changes in real-time, and gain a visually clearer understanding of the overall league flow and key players' current standings.