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Thiam vs Semenya

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GOAT verdictgoatrank.world
SemenyaWinner
87.2

Semenya wins: Dominance, Peak

Thiam
86.3

Thiam wins: no category outright

Candidates
Locked to Athletics

Shareable URL · /compare/nafissatou-thiam-vs-caster-semenya

Time range

Showing full careers. Pick a window to recalculate the selected period.

Category radar

Verdict

Weighted GOAT score
🇿🇦 Caster Semenya
87.2

Semenya leads in 5 of 5 weighted categories. Two Olympic and three world 800m titles with a 30-race winning run.

1. Caster Semenya
87.2
2. Nafissatou Thiam
86.3

Category breakdown

Season form · Major golds per season

Career timeline · Major golds per season

Cumulative output season by season — the shape of each career against the other.

GOAT pace tracker

Career stage · GOAT pace

Through season 5 · Major golds per season
1. 🇧🇪 Nafissatou Thiam5 seasons played · career day 3,28633,966 major golds
Setting the pace at this stage
2. 🇿🇦 Caster Semenya5 seasons played · career day 2,191586.5 major golds
-98.3% vs Thiam at the same stage
Ghost race · career day30100365100018253650
🇧🇪 Thiam00006,50833,966
🇿🇦 Semenya000115.45350.87941.46

Careers are aligned at debut, so a rookie's first 5 seasons are measured against the same window in a legend's career — Yamal against Messi at the same age-stage, a tour rookie against Tiger Woods in 1996.

MetricThiamActiveSemenyaActive
Olympic golds32
World Championship golds23
European golds2
Heptathlon best7,013
World indoor golds2
High jump best (m)2.02
Commonwealth golds1
800m best (sec)114.25
Consecutive 800m wins30
Dominance w25%8688
Peak w20%9092
Longevity w20%8080
Honours w20%8888
Statistics w15%8888

Fan vote — data vs the people

GOAT Rank · the data
Semenya87.2
Thiam86.3
The people
Thiam
Semenya

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Make your case for Thiam vs Semenya. The scoring is published in full — if you can point at the pillar or the weight you disagree with, we read it. Read the methodology paper.

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