u/Potential-Stock-8176

Hi guys

I have my first ultramarathon coming up at the start of September

I would like to know some tips and warnings for how to prepare for it and how long you need to be able finish a 50km trail run

The race is in Clarens, South Africa and has 1 600 meters of elevation.

I have done around 10 half marathons and did a half ironman a few month back
Wouldn't consider myself very fit but i have good endurance and if i set my mind to something i will finish it.

What Would be my best approach for the next 3.5 month of training and how do i best prepare for a race like this?