Beginners’ Guide
Step by step guide for the complete beginner: Learning the rules, playing practice games, things to watch and read, playing others online, getting your own set, playing in person, and so much more!
Jian wins 2025 RRO
Jian emerges triumphant!
Tourney in a Box
Build your own tournament with these tools!
IPR Pro Training
Go pro with help from IPlayRiichi.com!
Rizeng Zheng wins HGA 2024
Rizeng wins by only 400 points!
Grant Mahoney wins RRO 2024
Grant scores a commanding victory!
Bryce Wyckoff wins RRO 2023
Newcomer Bryce wins his first RRO!
Tournament Helper
A plug and play spreadsheet to help you run a tournament of your own!
RiichiOut Interclub Association
Clubs in North America and beyond share game data for an unbiased view of the players and organizations in the West.
Shinasaka Koji Interview
We sit down with the creator of “Tohai” and the revival of “Lion” in Kindai Mahjong to discuss manga, television, and of course, mahjong!
Caring for your Club
Lessons learned from a long-running mahjong club on growing and maintaining your organization.
Moriyama Play-By-Play
We had a chance to sit down with JPML President Shigekazu Moriyama to do a full four-player hand strategy session – all the hands, all the discards, all the reasons why.
Moriyama Nani Kiru
At the NYC International Riichi Open, we received a lesson via insights on example hands in the closing hours of the event, using the standard “Nani kiru?” (what would you discard?) teaching method. We recorded each one!
Ben Boas and the Good Players Club
Researcher and Mahjong expert Benjamin Boas talks mahjong, history, and improving your skills.
Mahjong Parlors
Mahjong parlors (“jansou”) in Japan are one of the best ways to see just how good you really are – with real stakes on the line, the cream rises to the top. Learn some basic etiquette and what it’s like to join and play at one.
Tile Efficiency: Basics
To succeed in Mahjong, you first have to learn how to upgrade your hand to the point where you can actually win. Knowing how to get to tenpai (ready state) as quickly as possible is an important skill to have.
Sample Pro Test
Take an example test used by the Japanese Professional Mahjong League. See how you do!
Rule Variations
Not everyone plays the same way, and while standards appear and evolve over time, take note of variations in the way people play Reach.
Terminology
Can’t decipher the meaning of an obscure mahjong term, or wondering how to say your score in Japanese? Check here!
How to Play
Just starting out? Saw a great anime, or watched a tournament, and want to join in the fun! Read on!
Mahjong Drills
Drills to get better at the game!
Edge Waits
A bit of helpful math to help you decide what to do with penchan!
Pro Commentary in English
Mondo21 released a pair of videos featuring English commentary by the GPC’s Ryan Morris and Benjamin Boas as a way to reach out to the English-speaking community.
Things to Read
Great mahjong manga and books to check out!
Things to Watch
Shows and videos for your enjoyment!
Quiz: What’s the Wait?
Quiz: What’s the Score?
Quiz: Han and Fu?