Jian wins 2025 RRO

Jian emerges triumphant!

Start a Club

Learn how to start your own mahjong club!

Rizeng Zheng wins HGA 2024

Rizeng wins by only 400 points!

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!