Robby Robinson: natty or not?
Confirmed "The Black Prince" — Mr. America, Mr. World and Mr. Universe in the Pumping Iron era, first Masters Mr. Olympia
Short answer. Verdict: confirmed. At the peak physique on this page, Robby Robinson is 5'7" (170 cm) and 205 lbs (93 kg) at roughly 5% body fat. That works out to an FFMI of 31.2, against the ~25 mark cited as the natural ceiling.
The numbers (estimated)
| Peak physique | Peak competitive years, top of his reported 205-215 lb contest range |
|---|---|
| Height | 5'7" (170 cm) |
| Weight | 205 lbs (93 kg) |
| Body fat | ~5% |
| FFMI | 31.2 — ~25 is the cited natural ceiling |
Era by era (estimated)
| Era | Year | Age | Weight | Evidence | Body fat | FFMI |
|---|---|---|---|---|---|---|
| Title year — Mr. America, Mr. World, Mr. Universe | 1975 | 29 | 201 lbs (91 kg) | reported | ~6% | 30.2 |
| Peak competitive years | 1979 | 33 | 205 lbs (93 kg) | reported | ~5% | 31.2 |
| First Masters Mr. Olympia, age 48 | 1994 | 48 | 201 lbs (91 kg) | reported | ~6% | 30.2 |
FFMI over time (estimated)
FFMI per era (values in the table above). Hover a point for details.
Note. Stage weights are era-reported figures; body-fat numbers are contest-shape estimates. See the methodology page for how we judge.
Robby Robinson answered the question himself, in detail, without being cornered. Asked about steroids, he described the afternoon it started: “About two weeks before the Mr. World, an older guy at the gym came up to me and said, ‘Well, Robby, what are you taking?’ I said, ‘Nothing.’… I took one shot of Primobolan Depot or Durabolin-50 — I remember the guy saying it was one of the two — and I won the Mr. World and all the body parts.”
Confirmed, by his own account, and with a date attached to it.
The numbers
Robinson won Mr. America, Mr. World and Mr. Universe in 1975 — the same year as that first shot. He competed at 200-215 lbs (91-93 kg) at 5’7” (170 cm), small by any later standard, and kept that physique for an absurd length of time: the first Masters Mr. Olympia in 1994, at 48, and Masters Over-50 titles in 1997 and 2000.
His FFMI here is past the drug-free ceiling our methodology page cites, which is what you would expect given what he says he took. The number that stands out is not the peak but the persistence: the same physique, competition-ready, across four decades.
The turn
Robinson stopped defending it. Since retiring in 2001 he has argued against steroid use in the sport, saying it is “taking away from the beauty of bodybuilding, the artistry of it.” He also does not pretend the drugs made him — his position has been that his rivals were taking the same things and the work decided it.
Verdict
Confirmed — on his own testimony, one of the few golden-era records specific enough to name the compound and the week. He is on this list for telling the truth about an era that mostly did not.
In their words
“About two weeks before the Mr. World, an older guy at the gym came up to me and said, 'Well, Robby, what are you taking?' I said, 'Nothing.' He said, 'Come back this afternoon. I took one shot of Primobolan Depot or Durabolin-50 – I remember the guy saying it was one of the two – and I won the Mr. World and all the body parts.'”
“it's taking away from the beauty of bodybuilding, the artistry of it”
Common questions
Is Robby Robinson natty or on steroids?
This site rates Robby Robinson as confirmed, the only verdict here stated as fact. It takes an admission, a failed test or an official record, and the one behind this page is cited in the sources below.
Has Robby Robinson ever failed a drug test or admitted to using PEDs?
The record that settles this page is listed in the sources below and described in the article above. It is what makes the verdict confirmed rather than an opinion.
What is Robby Robinson's FFMI?
About 31.2. That comes from 5'7" (170 cm) and 205 lbs (93 kg) at roughly 5% body fat, normalized to 1.8 m. Drug-free lifters in the Kouri 1995 study topped out near 25.