First Trail Run training...

Hello,

I have been roped into doing my first trail run the 20th July, the distance is 22km (or 16miles). It is a mountain trail run, lots of steep climbs, and long long climbs, with some rather steep descents. It is being hosted as a "warmer" in between two longer trails this summer, and so going to have a number of very serious runners.

I currently do "trail" runs around of 7km, running on the descent, and speed walking on the climb, 3 times a week.

I will be happy to complete the race, however my boyfriend and his mate have now decided they are going to do it, with the intention of beating my time whilst walking it (very french attitude). I am all for a bit of healthy competition, but now 22kms seems daunting!

Has anyone got any ideas on how I can progress? I know the rough layout of the race, and I know I need to build my distance up. Looking for any advice to complete this race with a decent time! Does anyone know what general time limits organiser put on trails? It climbs to 2500m.

Thank you for your time!