Wikipedia:WikiProject Sumo/Conventions

The Manual of Style for Japan-related articles should be followed for Japanese language text. Following the example of the Nihon Sumo Kyokai and the above style manual:

• An overuse of Japanese/sumo terms should be avoided: "wrestler" is preferred to rikishi, "top division" to makuuchi, etc. Japanese/sumo terms can be used in moderation for purposes of clarity and style, if the meaning of the terms has first been made clear.
• When a Japanese/sumo term is used, every occurrence of the term should be italicized if the word is not in common English use. Per MOS:OTHERLANG, the template {{lang}} should be used for each occurrence, which will automatically italicize the word. For example, makuuchi should be written as {{transl|ja|makuuchi}}.
• Macrons, such as ō and ū should be used for elongated vowels unless the word (or name) has established usage without the macrons in other English media. (e.g. "Tokyo", not "Tōkyō")
• Capitalization of sumo terms, including rank, division, and job titles should be avoided, as in komusubi, makuuchi, and sumo, except where the context calls for title case or where it is used as a personal title, as in "Yokozuna Asashōryū". Proper nouns, such as the names of people or organizations, should be capitalized.