Hint: There isn't really an Ironman world record. But there are some fastest-known Ironman (and iron-distance) times.

Australian spider declared world’s fastest after record-breaking sprint - Researchers find running speed of spider is related ...

Gretchen Walsh now holds the world records in the 50m free and the 100m butterfly.

Sept. 8 (UPI) --A serial Guinness World Record-breaker from Spain defeated one of his own titles by running 328 feet backward in 16.55 seconds -- while wearing high heels. Christian Roberto López ...

Eight of the 10 fastest women in history are currently active and six are expected to line up at the Prefontaine Classic, ...

The race for the fastest land speed record on a motorcycle has been a hotly contested accolade ever since the first motorcycles hit the roads. The evolutionary history of motorcycle engines has always ...

Dec. 5 (UPI) --A British man with a love of motorized vehicles built the world's fastest garden shed -- a storage structure with a top speed of 123.43 mph. Brian Cade, 61, said he decided to take on ...