This weekend I ran an obstacle event called Polar Bear Challenge. It's an event that lasts eight hours and the goal is to run as many laps of the 10K course as possible. (In February, in Vermont.) This is also an insanely hard course, much harder than a Spartan Race or a Tough Mudder or any of the big brands. Although, it's hard due to the obstacles being harder and more frequent, the terrain is much more flat than in a Spartan.
My goal was to finish three laps. I ended up finishing my second lap at around the 5:10 mark. It's possible, if I kept pushing myself at the same intensity, I could have finished a third. Although at the time my fingers were starting to cramp, I probably would have taken the penalty on at least half of the obstacles, and if my grip gave out at the wrong time I might have gotten injured, so I decided to stop there. It's going to take most of the week to recover.
My next races are a half marathon in 8 weeks and a Spartan Beast three weeks after that.
Here's my training plan.
Week 1: Recover, light easy runs.
Week 2-3: Heavy leg work, heavy grip training, easy runs only. My greatest weakness in these races is the heavy carries, and stronger leg muscles will correct that. Also the outside ground will be slippery, cold and mushy, so good time to do the kind of exercises that will stop me from running as hard.
Weeks 4-6: Heaviest running weeks. At least two out of hill sprints, speed intervals, and tempo runs every week, high volume.
Weeks 7-8: Tapering weeks. Lighter volume, more race pace, ending in the half marathon.
Week 9: Recovery, gradual re-increase in volume, introduce more heavy grip work.
Week 10: Lots of weighted hill work, lots of leg work, one longer tempo run.
Week 11: Tapering for race.
Also aiming to hit 155 by the end of this period. (Around 162-165 now).