Assume they get no time to do dedicated running training and have to run an all-out 5k in 24 hours.
Tour de France Cyclist
Tennis Player
Cross-Country Nordic Skier
Premier League Footballer
NFL Quarterback
NBA Player
Rugby Fly-Half
Darts Player
Strongman
Elite 100/200 sprinter
Elite 400 sprinter
Featherweight Boxer
Heavyweight Boxer