Level 7 Valued Member
GS athletes typically do a lot of jogging, I think. For me, that's just not going to happen. If I lived somewhere where winter didn't suck so much, and I didn't have a wife or kid, I'd probably do a lot long slow rucking. Maybe after I retire...Yeah, I'm not sure what to make of that either. GS (kettlebell sport) athletes who do the marathon or half marathon events might have some insights.
I can't help but think that anything that requires a lot of fuel production, as your events do, would be helped by a big aerobic engine. It is the most efficient way for the body to produce ATP, and with the least metabolic waste.