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Osamu Usui is a Men's Open Bodybuilding competitor from Japan.

Osamu Usui

CountryJapan
GenderMale
StatusRetired
Medium confidence 5 recorded results, Historical/community source Updated July 10, 2026 Accurate?

Osamu Usui is a Men's Open Bodybuilding competitor from Japan with a competitive record spanning 1978–2000.

Across 5 recorded contest results, Osamu Usui has no recorded first-place finishes.

Win rate here is first-place finishes as a share of all 5 recorded contest results. It is published only where a career holds at least five, because below that a single placing moves the figure by twenty points or more.

Missing from this profile

No height, weight or birthdate on record.

Career Record

Total Results
5
Win Rate
0%
Career
1978–2000
Country
Japan
Verified
Sources
2

Every season on record

1978 to 2000 shown · 5 results on record
1978
1979
1982
2000
Olympia 1st place 2nd place 3rd place Other
Pro Debut
1978
Last Contest
2000

All results

Every contest result on record for Osamu Usui, 5 in all. Won by names the winner of the division Osamu Usui competed in, and shows a dash where that winner cannot be pinned to one person in the database.

YearContestDivisionPlaceWon by
2000 Japan Nationals Men's Open Bodybuilding #3 Hiroshi Inoue
1982 Asian Amateur Championships Men's Open Bodybuilding #2 Ali Hussein Jasan
1982 World Amateur Championships Men's Open Bodybuilding Unplaced Ahmet Enünlü
1979 World Amateur Championships Men's Open Bodybuilding #26 Roy Duval
1978 World Amateur Championships Men's Open Bodybuilding #24 Tom Platz

Where these results come from. Each contest in the table was recorded from a named source, and for Osamu Usui 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.

Only 2 head-to-head meetings on record so far, with Loftus Roach ahead 2 to 0 - too thin to call a rivalry yet.

Opponents are ranked by how often they shared a stage and how big the stage was, not by reputation. A meeting is one contest where both competed in the same division and both were placed.