Unleash Your Inner Rat Last Weekend...

If you're at a loose end this weekend, don't panic, there's still time to enter the Edinburgh Rat Race's Rookie Challenge.

As opposed to the main race, which involves serious running and riding through the streets of Scotland's capital, the Rookie Challenge is aimed at, er, rookies, and involves taking part only in the Mean Streets Prologue on Sasturday night, the aim of which is to get to as many checkpoints as possible within 3 hours (from 7pm until 10pm).

The cost of entry is £25 per person, which sounds steep until you factor in the goody bag worth £50 that you'll receive as part of your entry. You can register up to 3pm this Saturday 16 July. Download an entry form here.

Two Weeks Till Manchester Rat Time

You also have two weeks left to enter the Manchester Rat Race on August 6 which takes place on the Saturday only and again includes a rookie class. The highlight of the event should be the Bruntwood Aerial Assault, the first climbing competition to feature the use of buildings as routes with entry including some of the UK's best climbers.

For more information and all things Rat Race see www.ratraceadventure.com