What is Jōnidan? A Beginner’s Guide to Sumo’s Basic Division for Foreigners

Introduction
               

Supervisor・Tsuyoshi Mizuguchi

He began practicing sumo in sixth grade, later advancing to Hotoku Gakuen High School and Ritsumeikan University before joining the Kasugayama stable to enter professional sumo. After retiring in 2016, he appeared in a popular subscription-based drama series titled Sanctuary. Currently, he runs his own YouTube channel, “Osumo Gucchan-neru,” where he shares videos on sumo training, techniques, and his experiences from his time as a professional wrestler.

Jōnidan is the second-lowest division in professional sumo, positioned just above Jonokuchi. For many wrestlers, it is the first real step toward climbing the ranks, where they refine their skills, build physical strength, and adapt to the traditions of the sumo world. For foreign fans and wrestlers, understanding Jōnidan provides valuable insight into how careers in sumo truly begin.

Overview and Role of Jōnidan

Jōnidan ranks second from the bottom on the banzuke (sumo ranking list). Wrestlers who have completed the Jonokuchi stage join this division to aim for the next goal, Sandanme.
At this stage, great emphasis is placed on ring etiquette, match strategy, and body conditioning. Compared to brand-new wrestlers who have just passed the new recruit examination, Jōnidan wrestlers are already used to the basic movements and have more match experience. However, to reach higher divisions, they still need to further improve their skills and consistency.


Jōnidan’s Position in the Ranking Structure

The table below shows Jōnidan’s place within the sumo world.

DivisionRank PositionCharacteristicsPromotion Criteria
JonokuchiLowestDebut division for new recruitsPromoted to Jōnidan with good results
JōnidanSecond from the bottomStage for building technique and strengthPromoted to Sandanme with good results
SandanmeMiddle divisionStable skill and recordAim for Makushita
MakushitaLower bound of upper divisionsJust before becoming a sekitoriAim for Jūryō
JūryōLower sekitori rankSalary providedAim for Makuuchi
MakuuchiHighest divisionIncludes Yokozuna and ŌzekiMaintain wins for rank retention

Growth Elements Required in Jōnidan

Area of GrowthDescription
TechnicalIntensive training in basic yotsu-zumo (grappling) and oshi-zumo (pushing)
PhysicalImproving explosive power and stamina
MentalAdapting to pressure and maintaining focus
Cultural UnderstandingLearning Japanese language and sumo etiquette

Significance for Foreign Wrestlers

For foreign wrestlers, Jōnidan is more than just a rank—it’s an opportunity to deeply immerse themselves in Japanese culture. Outside of training, they learn stable (heya) discipline and etiquette through communal living. Because their physique and prior wrestling experience often differ from Japanese wrestlers, they also face unique challenges in skill acquisition.
The following table outlines common challenges foreign wrestlers face in Jōnidan and suggested responses.

ChallengeResponse
Communicating in JapaneseLearn everyday conversation, use interpreter support
Differences in daily routineUnderstand and follow stable lifestyle rules
Different training methodsLearn directly from stablemasters and senior wrestlers

Number of Wrestlers and Factors of Change

The number of wrestlers in Jōnidan is not fixed and changes each tournament depending on promotions, demotions, and new entrants. Promotions and demotions are determined by winning or losing records, and even within Jōnidan, the skill levels vary greatly.
For example, in one tournament there may be around 150 wrestlers, but in the next, the number might drop to about 120.


Promotion and Demotion System Based on Performance

RecordOutcome
Winning record (4 wins or more)Chance of promotion
Losing record (3 wins or fewer)Risk of demotion
UndefeatedPossible significant promotion
No winsLikely significant demotion

Conclusion

Jōnidan is the real gateway to growth in the sumo world. For foreign wrestlers, it is a place to develop technique, physical strength, and mental toughness all at once. The experience gained here serves as a foundation for advancing to Sandanme, Makushita, and eventually becoming a sekitori. Because the number of wrestlers is fluid and competition is fierce, each bout has a direct impact on the future.

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