Transparency

Data quality report

Every dataset has errors — including this one. Instead of pretending otherwise, we publish the numbers that show how thorough we are and how fast we correct mistakes. This page updates every six hours from the live database.

6,815

Athletes tracked

1,906

Competitions

28,068

Placement records

235,216

Head-to-head matchups

System health

87 items flagged

Automated quality control: a nightly sanity gate blocks bad data from going live, and a weekly veracity sweep flags internal contradictions. These are the current signals.

100%

Facts sourced

Open findings

31d

Median fact age

195d

Oldest un-reviewed

Currently flagged

warn Cydney Gillon has a timeline inconsistency · athlete
warn Aleesha Young has a timeline inconsistency · athlete
warn Olympia 2007 has results in a non-weight-class division · competition
warn Olympia 2005 has results in a non-weight-class division · competition
warn Olympia 2006 has results in a non-weight-class division · competition
warn Irene Andersen has a timeline inconsistency · athlete

Top sources

Source	Facts	Trust	Open
contests.npcnewsonline.com	24,915	—	31
hardcorefbb.com	1,024	2	10
web.archive.org	713	—	3
en.wikipedia.org	567	1	0
musclememory.com	557	2	0
generationiron.com	112	—	0

Source coverage

Placement records with a source URL	100% (28,068 / 28,068)
Distinct primary sources	25,360
Athletes with at least one verified competition record	6,587 (97%)
Earliest competition covered	1969
Most recent competition covered	2026
Most recent dataset review	October 28, 2026

How we verify the data

Every fact has a source URL stored in the database — federation scorecards, Wikipedia articles, podcast transcripts, sponsor announcements. No anonymous claims.
A nightly automated sanity check verifies anchor truths: known Ms. Olympia win counts, all-time records, structural invariants (one #1 per division, no biological out-of-bounds values). If any anchor fails, new data is not promoted to the public site until the issue is fixed.
Derived numbers (Iron Score, Muscle Dominance heatmap) carry a methodology link explaining the formula and inputs. They are clearly labeled as derived.
Reader corrections are processed within 48 hours and logged publicly. Use the form below.

Read the full methodology →

Found something wrong?

Tell us. We log every report, fix what is wrong within 48 hours, and publish the correction with a link to the source you provided.

Submit a correction

What we do not claim

We do not claim this dataset is complete or error-free — no public sports dataset is. We do not claim affiliation with the IFBB Pro League, NPC, NABBA, WFF, WNBF, OCB, PNBA, or any federation. We do not publish AI-generated photographs of real athletes. Iron Cards are stylized identity graphics built from public data, not portraits.