Swimming challenge

10 km

10 km

The Olympic open-water race.

Swim 10 km in one go.

The distance
10 km
It stands on
Cadets' eight, Thames at 14
The Serpentine in Hyde Park, London, during the 2012 Olympic 10 km marathon swim.
Photo: A Holmes, CC BY-SA 2.0, via Wikimedia Commons.

What it takes

Before you go.

Recommended first
Thames at 14
Weekly distance
About 10 km of swimming a week on average over 6 weeks
Long swim
3.2 km, at least once in the last 6 weeks. Finishing Thames at 14 counts
Taper
An easier week before the event week

The story

The 10 km is the Olympic open-water race. It has been swum at every Games since Beijing 2008. Source: World Aquatics and the IOC.

The ladder

  1. Ice mile
  2. Swim to Antarctica
  3. Between the monsters
  4. Across the Cold War
  5. Hellespont
  6. Plum Pudding
  7. Grettir's swim
  8. Cadets' eight
  9. Thames at 14
  10. 10 km