RESEARCH NOTE

Chikara-mizu and the White Paper: Sumo’s Quiet Handover

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The water used beside the dohyo is commonly called *chikara-mizu*, “power water,” but the Japan Sumo Association says its formal name is simply *mizu*—water. The white sheet used immediately afterwards is formally just *kami*, paper, and is commonly called *kesho-gami*. If you have encountered “chikara-gami” or “power paper” online, do not treat it as the Association’s official partner term. The most rewarding detail is not the vocabulary, though: watch whose hand offers the ladle.

The action is so brief that it can look like an athlete taking a drink. The official explanation is more specific. The wrestler rinses his mouth and purifies himself before beginning the shikiri. Once you follow the ladle rather than the mouth, a tiny connection appears between the previous bout and the next one.

It is ritual water, not an arena drinks service

The Sumo Association says the buckets stand below the red and white tassel positions beside the ring. A wrestler uses the water before the shikiri to rinse his mouth and purify himself. Traditional alternative names include *chikara-mizu*, “purifying water” and *kesho-mizu*, but the formal name in the Association’s terminology is simply water.

That wording also prevents a common overstatement: the source says “rinse,” not that every wrestler must swallow it as hydration. Describing the moment as a sports drinks break would change what the action is for.

The Association says all wrestlers once used the water, but from the January tournament of 1902 its use was limited to juryo and higher-division bouts. If you watch the lower divisions and do not see the same sequence, nobody has forgotten the equipment. The rule changes with the competitive level.

The paper has an unexpectedly plain official name

The Association’s dohyo regulations require “water, paper and salt” to be provided. Its explainer says a sheet of *hanshi* paper is cut in half and placed on top of the water bucket. After using the water, the wrestler uses the paper to wipe his mouth or perspiration.

Formally it is paper. The common name given by the Association is *kesho-gami*. This article mentions the searchable expression “power paper” only to correct it: the official source checked here does not list that as either the formal or common name. Where terminology is this easy to romanticise, a plain answer is more respectful than a convenient invention.

Salt is thrown high enough to become an arena spectacle. Water and paper remain at the ring’s edge and are over in seconds. They belong to the same pre-bout world of purification, but they do not compete for attention in the same way.

Who passes the ladle?

Near the final bouts of the day, a winning wrestler may remain in his ringside waiting place so he can provide water to the next wrestler entering from the same side. The Association calls the late-bout practice *kachi-nokori*, literally “the winner remains.” Its explainer says the winners two bouts before the finale and immediately before it stay because they must supply water to the next wrestler.

There is a delightful exception. If wrestlers from one side lose twice in succession before the final bout, there is no winner on that side waiting to provide the water. The Association explains that an attendant then comes down to ringside with one shoulder of his robe exposed and offers it instead. This rare sight is not evidence that the routine has broken; it is the routine making room for an unusual sequence of results.

Some retellings add a claim that a winner’s strength passes through the water. The official sources used for this guide establish who supplies it and why the winner remains, but do not make that transfer-of-power claim. We leave the larger symbolism open rather than presenting a pleasing story as a rule.

One thing to watch next time

During a juryo or makuuchi bout, move your attention a few centimetres away from the wrestler who is preparing. Look at the hand holding the ladle. If you remember the winner of the previous bout, you may suddenly recognise why he has not gone backstage. Then look for one white half-sheet rising from the bucket.

Each contest appears to begin and end cleanly on the dohyo. At its edge, however, the previous winner and the next challenger briefly share a utensil and a duty. Once you notice that quiet handover, the interval before a bout no longer feels empty. It is the seam that holds two contests together.

Keep More Than One Interpretation Open

We separate what the official or collection source establishes from our observation. A ritual, object or posture may have another interpretation or theory across periods, regions and explainers. When primary evidence does not establish a single origin or meaning, we leave it unknown or contested rather than turn visual resemblance into historical fact.

Sources

  • Japan Sumo Association, Sumo Quiz No. 1297 on water and its traditional names, published 28 July 2025 (checked 2 September 2026)
  • Japan Sumo Association, Sumo Quiz No. 693 on the paper required at the dohyo, published 2 December 2023 (checked 2 September 2026)
  • Japan Sumo Association, Sumo Quiz No. 483 on *kachi-nokori*, published 6 May 2023 (checked 2 September 2026)
  • Japan Sumo Association, Sumo Quiz No. 883 on an attendant providing water when no winning wrestler is available, published 9 June 2024 (checked 2 September 2026)

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