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Mr Japan 1984

Mr Japan 1984 was held in Tokyo, Japan. The Men's Open Bodybuilding title went to Yasushi Koyama.

Year
1984
Date
Jan 1, 1984
Location
Tokyo, Japan
Federation
JBBF
Divisions
1
Competitors
3

Results by Division

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Mr Japan 1984

Yasushi Koyama Champion

1984 Tokyo, Japan Dec 31, 1983

Mr Japan 1984 was held in Tokyo, Japan. The Men's Open Bodybuilding title went to Yasushi Koyama.

Medium confidence Historical/community source Updated August 13, 2026 Accurate?

2-time winner Naokata Ishii, who won in 1983, did not return.

Top 3 Men's Open Bodybuilding

1st
Yasushi Koyama
Yasushi Koyama
Japan
2nd
Toshio Konuma
Toshio Konuma
Japan
3rd
Hiroshi Matsubara
Japan

Mr Japan 1984 contested 1 division across 3 athletes. Yasushi Koyama took Men's Open Bodybuilding. No round scores were published for this event, so placings are shown without them.

Men's Open Bodybuilding

Place Athlete Country
1st Yasushi Koyama 2nd win here Japan
2nd Toshio Konuma Japan
3rd Hiroshi Matsubara Japan

Official scores are unavailable.

Complete Results updated March 12, 2026 Source: MuscleMemory

This edition in context

Competitors
3
Divisions
1
Size rank
32 of 59

The biggest field since 1977.

Past winners of this event

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What this page holds

The placings as recorded, and nothing past them

This page lists the divisions and finishing order held for this contest, with the source named on it wherever one was recorded. It reports what was published. It does not re-judge the show, and it does not reconcile disagreements between sources.

  • Score and bodyweight columns appear only for divisions where those figures exist in the data. A division without them was recorded as placings only, not as a show that gave no scores.
  • Where the record has two athletes sharing a place, both are listed. A tie is never broken to produce a single winner.
  • Venue, federation, date and competitor count show only when the source supplied them. A field left out means nothing was sourced for it, never a zero.
  • A contest with no results has either not taken place yet or has no placements published. Check the status line above the results to tell which.