Kadoban is the common term for an ozeki entering a tournament with demotion at stake after a losing record. The Japan Sumo Association explains that an ozeki is demoted after losing records in two consecutive tournaments. One losing tournament therefore does not cause immediate demotion. When you next watch a kadoban ozeki, look for the win that secures a winning record: that single result ends the immediate two-tournament danger.
The word often appears in headlines without its first half. A report says an ozeki is “kadoban,” the next bout feels enormous, and a newcomer may assume that one more defeat automatically ends the rank. It is clearer to place two tournaments side by side.
The sequence begins in the previous tournament
Japan Sumo Association Quiz No. 1071 gives the governing idea in compact form: an ozeki goes down after two consecutive losing records. For a beginner, the sequence reads like this:
- The ozeki finishes one tournament with a losing record.
- Demotion is now at stake in the next tournament; this situation is commonly called kadoban.
- A second consecutive losing record brings demotion from ozeki.
- A winning record breaks the sequence and clears that kadoban situation.
Kadoban is not a new rank printed between ozeki and sekiwake. The wrestler is still listed as ozeki on that tournament’s banzuke. The term describes how his recent record relates to the demotion condition; it does not establish how he feels.
This also explains why the day’s score alone can mislead. A kadoban ozeki starting 0–1 has not been demoted, and a dramatic win on opening day has not yet settled the tournament. The story is the accumulation of results, connected to what happened in the previous basho.
Use official records when an absence is involved
Injury reports can tempt supporters to forecast rank changes before they are official. A safer method is to follow the Association’s tournament-by-tournament profile and then the next published banzuke. Medical speculation is not needed to understand the recorded sequence.
Aonishiki’s 2026 profile provides a dated example. The official record lists him as East Ozeki with a 7–8 result in March, West Ozeki with 0–0–15 in May, West Sekiwake with a 12–3 championship in July, and East Ozeki in September. The Association’s September banzuke topics label him a returning ozeki.
That example confirms the positions and results Aonishiki actually recorded. It should not be stretched into a complete rule for every route back to ozeki. This article deliberately does not state a general special-return win threshold, because the official sources used here do not set that full rule out. A return or promotion is treated as current fact when the Association publishes it.
One thing to watch: the win that clinches kachi-koshi
You do not have to turn every kadoban bout into a verdict on a wrestler’s worth. Instead, keep one milestone in view: the victory that makes a winning record certain. If it arrives, the verified milestone spans two tournaments rather than one afternoon; relief is not assumed without attributed words.
Before that point, watch what happens after the ozeki’s preferred opening plan fails. Does he reset his feet, change his grip or find another way forward? The rule adds stakes, but the observable detail is the movement sequence that followed.
The term came from another contest culture
The Association’s explainer traces *kadoban* to seven-game series in go and shogi, where it described a game in which defeat in the series would be decided. A word that now sounds inseparable from sumo carries an older echo of board-game competition.
The banzuke is a ranking sheet. Kadoban adds an invisible line back to the previous tournament. Once you see that line, an ozeki’s next meaningful win looks different.
Sources
- Japan Sumo Association, Quiz No. 1071 on kadoban and ozeki demotion (checked 2 September 2026)
- Japan Sumo Association, Aonishiki wrestler profile (checked 2 September 2026)
- Japan Sumo Association, September 2026 banzuke topics (checked 2 September 2026)
Source links used for verification
Each link was used for the corresponding claim in this article; inclusion is not a blanket endorsement of the whole page.
Article verified:
- Japan Sumo Association Quiz No. 1071: kadoban and ozeki demotionHistorical primary source (record from that period)
- Japan Sumo Association Aonishiki wrestler profilePrimary source (as checked for this article)
- Japan Sumo Association September 2026 banzuke topicsPrimary source (as checked for this article)