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Stephen Sepaniak is a Men's Open Bodybuilding competitor from the United States. Stephen Sepaniak has a verified height of 5'8" (173 cm).

Stephen Sepaniak profile photo

1 career win

Stephen Sepaniak

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

Stephen Sepaniak is a Men's Open Bodybuilding competitor from the United States with a competitive record spanning 1979–1985.

Across 10 recorded contest results, Stephen Sepaniak has 1 first-place finish (a 10% win rate).

Win rate here is first-place finishes as a share of all 10 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 weight or birthdate on record.

Stephen Sepaniak, a bodybuilder from the United States, stands 5'8" (173 cm) tall.

Career Record

Total Results
10
Wins
1
Win Rate
10%
Career
1979–1985
Height
5'8" (173 cm)
Country
United States
Verified
Sources
2

Every season on record

1979 to 1985 shown · 10 results on record
1979
1980
1981
1982
1984
1985
Olympia 1st place 2nd place 3rd place Other
Pro Debut
1979
First Win
1980
Last Contest
1985

All results

Every contest result on record for Stephen Sepaniak, 10 in all. Won by names the winner of the division Stephen Sepaniak competed in, and shows a dash where that winner cannot be pinned to one person in the database.

YearContestDivisionPlaceWon by
1985 USA Championships Men's Open Bodybuilding #13 Matt Mendenhall
1984 USA Championships Men's Open Bodybuilding #9 Phil Williams
1982 Junior Nationals Men's Open Bodybuilding #5 Michael Klinefelter
1981 Junior Mr America Men's Open Bodybuilding #5 Jesse Gautreaux
1980 Junior Mr America Men's Open Bodybuilding #1 Winner
1980 Junior Mr USA Men's Open Bodybuilding #2 Ernie Santiago
1980 Mr America Men's Open Bodybuilding #10 Gary Leonard
1980 Mr USA Men's Open Bodybuilding #3 Don Peterson
1979 Junior Mr USA Other Divisions #4 Darrell Guilbeau
1979 Mr America Other Divisions #7 Ray Mentzer

Where these results come from. Each contest in the table was recorded from a named source, and for Stephen Sepaniak 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 Billy Arlen 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.