#1 Female
#1
Simone Biles
API 98.4 · Gymnastics · USA
#1 Male
#1
Novak Djokovic
API 97.9 · Tennis · SRB
How Rankings Are Calculated
Eight metrics. Peer-reviewed sports science literature, competition data from sanctioning bodies, and a panel of twelve analysts who have each held national-level coaching positions. No poll. No fan vote. The Athletic Power Index is a composite score where every weight was argued over until someone walked out of the room.
Each metric is normalized to a 0–100 scale within its sport, then cross-sport adjusted using a conversion model validated against six independent performance datasets. An athlete who peaks in one category cannot coast on it — the formula penalizes extreme imbalance.
- SPDSpeed & Explosiveness18%
- STRStrength & Power Output14%
- ENDEndurance & Aerobic Capacity14%
- SKLSkill Ceiling & Technical Mastery18%
- MNTMental Toughness14%
- AGIAgility & Coordination10%
- RECRecovery Rate6%
- LONCompetitive Longevity & Record6%
Frequently asked questions
Who holds the top overall rankings on Global Athletic Rankings?
Global Athletic Rankings names Serena Williams (Tennis, 1998–2022) as the #1 female athlete of all time and Muhammad Ali (Boxing, 1960–1981) as the #1 male athlete of all time across all sports and all eras.
How are athletes scored on Global Athletic Rankings?
Global Athletic Rankings uses a composite score built from eight components: Competitive Record (22%), Athletic Ceiling (18%), Longevity (15%), Skill Mastery (15%), Mental Fortitude (12%), Era Adjustment (10%), and Recovery Rate (8%). No single metric dominates the final score.
Who built the ranking methodology and how long did it take?
The Global Athletic Rankings index was built over three years by a team of sports scientists, historians, and statisticians. The methodology was intentionally developed through disagreement among experts so that no single perspective or metric would dominate the rankings.
Can I compare two athletes from different sports or eras against each other?
Yes. Global Athletic Rankings offers a Comparator tool that lets users select any two athletes from across all sports and all eras. The tool produces a side-by-side breakdown across every scoring component simultaneously, without hedging on the result.
Who ranks highest for speed and endurance in the current index?
In the Speed category, Usain Bolt leads with a score of 100/100, followed by Florence Griffith Joyner at 97. In the Endurance category, Eliud Kipchoge leads with 100/100, followed by Paula Radcliffe at 98 and Haile Gebrselassie at 96.