O'Callaghan vs Marchand
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O'Callaghan wins: Honours
Marchand wins: Statistics
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Showing full careers. Pick a window to recalculate the selected period.
Category radar
Verdict
O'Callaghan leads in 4 of 5 weighted categories. Olympic 200 m freestyle champion and world record holder.
Category breakdown
Season form · Form index per season
Career timeline · Form index 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 · Form index per season| Ghost race · career day | 30 | 100 | 365 | 1000 | 1825 | 3650 |
|---|---|---|---|---|---|---|
| 🇦🇺 O'Callaghan | 0 | 0 | 3 | 8 | 23 | 23 |
| 🇫🇷 Marchand | 0 | 0 | 0 | 0 | 735.18 | 1,222.68 |
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.
| Metric | O'CallaghanActive | MarchandActive |
|---|---|---|
| Olympic gold medals | 5 | — |
| Olympic medals | 8 | — |
| World Championship golds | 12 | 6 |
| World records | 1 | 2 |
| Commonwealth golds | 3 | — |
| Olympic golds | — | 4 |
| 400 m medley record (s) | — | 242.5 |
| Golds at one Games | — | 4 |
| European golds | — | 3 |
| Dominance w25% | 86 | 86 |
| Peak w20% | 94 | 94 |
| Longevity w20% | 66 | 66 |
| Honours w20% | 86 | 84 |
| Statistics w15% | 88 | 90 |
Fan vote — data vs the people
What do you think?
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