Top 100 Rankings

Accomplishments (0–100): 20 points for a championship claim; 8 per documented champion division (maximum 6); 0.8 per recorded successful defense (maximum 25); 1 per dated reign year (maximum 12). Multiple belts in one division count once. Overlapping reign years count once. Olympic medals and Hall of Fame honours do not score.

Longevity (0–100): 70 × min(recorded active years ÷ 20, 1) + 30 × min(decided bouts ÷ 100, 1). An active year contains at least one dated archived bout; inactive gaps do not count. Decided bouts are wins, losses and draws; newspaper decisions are excluded.

Strength (0–100): 70 × era percentile of distinct archived fighters beaten + 30 × decided-bout win rate. Era percentile = (peers with fewer distinct opponents beaten + half the tied peers other than the fighter) ÷ (era size − 1). A sole era member receives 0.5. Rematches do not multiply résumé credit; all matched opponents count equally. The era is the profile's assigned era.

Overall: 0.45 × accomplishments + 0.25 × longevity + 0.30 × strength. Sort using unrounded scores; ties break by accomplishments, then name. Displayed scores are rounded to one decimal; only ranks 1–100 are listed. Search preserves ranks.

Limits: This is a data-based proxy, not a historical expert panel. Opponents outside the archive do not contribute résumé credit. It does not measure opponent form at the time, weight advantages, era depth or discrimination against excluded fighters. Undated reigns and unlisted defenses earn no points, so uneven documentation can disadvantage fighters. Profile championship claims include historical and regional claims; no sanctioning-body distinction is made. Some profile titles and totals are stale or unverified. Reign years use year differences, not exact days. Shortened division names are interpreted from profile title text. No hypothetical cross-era results are implied.

Inputs come from the existing profile title lists, biographies and fight records in this archive.