10 Photos that show why Katie Ledecky swims faster than you.

For those of you that somehow aren't aware of Katie Ledecky, here are a few things you should know...

• Aged 18 she holds the Women's 400m, 800m, and 1500m Freestyle World Records
  
• She won Olympic Gold at just 15 years old
• 400m PB of 3:58 (WR)
• 800m PB of 8:07 (WR)
• 1500m PB of 15:25 (WR)

She has arguably the best Freestyle stroke in the world. The following photos are all from her World Record 800m swim at the 2015 World Championships...

A World Record by FOUR seconds....