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Hideyuki Kosaki is a bodybuilder from Japan.

2 career wins

Hideyuki Kosaki

CountryJapan
GenderMale
StatusRetired
Medium confidence 4 recorded results, Historical/community source Updated July 10, 2026 Accurate?

Hideyuki Kosaki is a bodybuilder from Japan with a competitive record spanning 1975–1976.

Across 4 recorded contest results, Hideyuki Kosaki has 2 first-place finishes.

No win rate is shown. With 4 recorded contest results on file, a single placing would move the figure by twenty points or more, so the percentage would describe how much of this career the database holds rather than anything about the athlete. The counts above are neither rounded nor capped.

Missing from this profile

No height, weight or birthdate on record.

Career Record

Total Results
4
Wins
2
Career
1975–1976
Division
Other Divisions
Country
Japan
Verified
Sources
2

Every season on record

1975 to 1976 shown · 4 results on record

Peak Year 1976 (2 wins)

Measured against Hideyuki Kosaki’s own seasons, not against the field.

1975
1976
Olympia 1st place 2nd place 3rd place Other
Pro Debut
1975
Last Contest
1976

All results

Every contest result on record for Hideyuki Kosaki, 4 in all. Won by names the winner of the division Hideyuki Kosaki competed in, and shows a dash where that winner cannot be pinned to one person in the database.

YearContestDivisionPlaceWon by
1976 Asian Amateur Championships Other Divisions #1 Winner
1976 Mr Japan Other Divisions #1 Winner
1975 Asian Amateur Championships Other Divisions #2 Roger Walker
1975 Universe Other Divisions #4 Robby Robinson

Where these results come from. Each contest in the table was recorded from a named source, and for Hideyuki Kosaki that source is MuscleMemory. Open any contest above and that page names its own source and links to it where the source is still reachable. That archive no longer answers at the addresses we hold, so it is credited by name here and not offered as a link.