Limits RegistryPUBLIC RECORD
Limits RegistryThe sailfish (Istiophorus platypterus) is commonly cited as the fastest fish in the ocean, with a widely repeated figure of around 110 km/h (68 mph) based on a 1940s measurement of fishing-line spooling speed. Modern hydrodynamic analyses argue this figure is likely a substantial overestimate and that sustained speeds are probably much lower, so this should be read as a widely cited but methodologically contested claim rather than a rigorously verified one.
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The sailfish (Istiophorus platypterus) is commonly cited as the fastest fish in the ocean, with a widely repeated figure of around 110 km/h (68 mph) based on a 1940s measurement of fishing-line spooling speed. Modern hydrodynamic analyses argue this figure is likely a substantial overestimate and that sustained speeds are probably much lower, so this should be read as a widely cited but methodologically contested claim rather than a rigorously verified one.
The peak burst swimming speed commonly attributed to the sailfish, historically cited as the fastest swimming speed of any fish species.
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Permanent ID limitsregistry.com/limits/LR-FASTEST-SWIMMING-SPEED-SAILFISH
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Limits Registry. LR-FASTEST-SWIMMING-SPEED-SAILFISH. Fastest swimming speed attributed to a fish (sailfish). 2026.