7 of 7 lists live
Vehicles
Sourced speeds for cars, planes, helicopters, trains, boats, spacecraft and the UCI hour, plus the FIA land speed record.
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All categories
Every list ranks one clearly defined measure, with a source, a qualifier and a date on each figure.
- 2 of 2 lists live
Animals
Sourced animal speeds for mammals and birds, one greyhound record, and a one-species algae octopus list from laboratory video.
- 8 of 8 lists live
Sports
World Athletics race times for the sprints and the men's marathon, plus long-course 50 m freestyle.
- 1 of 1 lists live
Space
Mean orbital speeds around the Sun from NASA's planetary fact sheet.
- 1 of 1 lists live
Entertainment
Operating roller-coaster speeds the park prints and two databases repeat.
Later waves
Being researched
These categories open once each of their first lists has enough verified entries.