Most differences in results are within chance.They do not justify criticizing players.

2026-27 season · 132 games played · games up to 11/12

Skill, or luck?

About 85% of the gap between players over one M.League season is explained by luck.
We split players' results into luck and skill from the game records, and update them with this season's standings odds the morning after each match day.

Share of one season's gaps due to luck
85%
Games until average placement is half skill
146
games; a season is about 24
Games until call rate is half stable
5
games; playing style shows quickly
Spread removed with measured luck
28%
variance of points per game

Standings odds2026-27, the rest of the season simulated 20,000 times

  • KADOKAWA Sakura Knights9934%
  • Akasaka Drivens7915%
  • KONAMI MAH-JONG FIGHT CLUB7911%
  • SEGA SAMMY Phoenix6610%
  • U-NEXT Pirates569%
  • TEAM RAIDEN749%
  • Shibuya ABEMAS384%
  • EARTH JETS404%
  • BEAST X433%
  • EX Furinkazan273%

In the circle: the chance of reaching the Semifinal Series (%); on the right: the chance of winning the title. Only 132 games in, so there is little data behind these chances (caveats).All standings odds

The hands that decided the latest games11/12

  • Game 1South 4+43.2Hiroshi Daigo tsumo 5,200. Hiroshi Daigo's expected points moved
  • Game 2South 2, 3 honba+43.4Arisa Date ron 12,000 from Takaharu Ooi. Arisa Date's expected points moved
  • Table B Game 1South 4+34.9Wataru Shirinashihama ron 5,200 from Kazuma Ishii. Wataru Shirinashihama's expected points moved
  • Table B Game 2East 2+43.3Shingo Hori tsumo 18,000. Shingo Hori's expected points moved

Luck, up and down2026-27, actual − skill estimate (pt/game)

Regular Season, 10+ games. Around 25 games, almost all of this gap is luck. Every player's results and skill estimate

Reading a game2026-27 11/12 Game 2

The hand that decided this game: South 2, 3 honba · Arisa Date ron 12,000 from Takaharu Ooi

0%25%50%75%100%East 1South 1South 2End● Arisa Date● Hiroshi Daigo● Takaharu Ooi● Yu Suzuki0%25%50%75%100%East 1South 2End● Arisa● Hiroshi● Takaharu● Yu
The chance of finishing 1st, at the start of each hand (estimated by simulation). Shaded: the hand that decided this game.

This game hand by hand · Column: how much of M.League placement is luck? (Japanese) · Are these numbers right? (Japanese)