Home games · City-by-city American mahjong league: players register for eight weeks and set up their own four-person tables at homes, cafés or clubs
The Mahjong Open
Also called The Mahjong Open; Mahjong Made Social; themahjongopen.com
Leagues in cities across the U.S. (about 80 cities listed for the Holiday League); games are played wherever players choose. Operator location not published.
Category: Home games · City-by-city American mahjong league: players register for eight weeks and set up their own four-person tables at homes, cafés or clubs
Also called: The Mahjong Open; Mahjong Made Social; themahjongopen.com
What it is
The Mahjong Open is a paid American mahjong league run city by city. Players register for an eight-week league in their city, then use a private player portal to propose or join four-person tables on any day, time and place they like, including each other’s homes. Scores are self-reported after each round and feed city leaderboards.
Who it’s for
Players who already know American mahjong and want more games with new people near them, without a fixed weekly club night.
Why it’s listed
It is a structure for home and casual games, and its site sets out the format, prices and refund rules.
- Format: 8-week leagues, five a year; register once and play unlimited rounds.
- Price: $80 per league; a second city is $35.
- Holiday League 2026: Oct 25 – Dec 19, 2026; registration closes Sunday, November 8. The Fall League ran Aug 17 – Oct 11.
- Minimum: a city’s league runs only once it reaches 20 registered players.
- Awards: Ace Award (best single round), Champion Award (sum of each week’s best round) and Flight Winner (points per round), plus a city-versus-city “Mahjong Open Leader” title.
- Cities: the home page lists returning and new cities in about two dozen states, from Alabama and Texas to Massachusetts, Minnesota and California.
Official URL
Home: https://themahjongopen.com/
How it works: https://themahjongopen.com/how-it-works
Refund policy: https://themahjongopen.com/refund-policy
Contact: https://themahjongopen.com/contact
Last checked: 2026-10-20
Location
Online registration; games happen in players’ cities, at locations the players choose. The site gives no head-office address.
Notes
- Home-games listing: there is no venue; tables are arranged by players through the portal.
- Refunds: refundable through the seventh day of the league, minus the 2.9% + 30¢ card fee; full refund automatically if the city does not reach 20 players.
- Self-reported scores: standings depend on players entering results; there is no referee.
- Commissioner model: each city is led by a volunteer “commissioner” who earns tiered commissions as more players join.
- Very new: established 2026; the Holiday League is only its second league.
- Not cited: the site’s “Shop Our Favorites” page.
- Image: the site’s own og:image (logo card, “Mahjong Made Social.”), 1200×630 PNG, saved as
the-mahjong-open.jpg. - Not affiliated with Mahjong Plaza. No registration, payment, portal login or contact was made.
FAQ
Q: How much does it cost?
A: $80 per eight-week league, and $35 to add a second city.
Q: Do I need a group or a partner?
A: No. Any registered player in your city can host or join a four-person table, and all skill levels are welcome.
Q: Where are the games played?
A: Wherever the table decides: homes, cafés or clubs.
Q: When is the next league?
A: The Holiday League runs Oct 25 – Dec 19, 2026, with registration closing Sunday, November 8.
Q: What if not enough people sign up in my city?
A: A league needs 20 players. If a city falls short, everyone gets an automatic full refund.