u/Accomplished_Map_522

One month ago, I ran my first "official" half-marathon in 1:58:45. I did this on 4 training runs totaling 13 miles. I have a sports background -- hockey, soccer, tennis. I show up to run club for 3-miles per week, occasionally.

Objectively, this time implies I am an "intermediate runner." In terms of muscular adaptation, I am still in "noob gains" territory as I have not purposefully run or trained.

Given this base, how should I train for a marathon? Should I attempt a marathon given the injury risk? Should I focus on running + cycling? Run to gain the muscles but cycling to build the cardio base? Looking for advice...