Yeah I did Capitol about 19, 20 years ago as a day hike. I was faster then, but still not a speed demon and more like a 10K runner then marathoner.Phill the Thrill wrote:Capitol Peak as a day hike is too much for the average 14er climber, and since you're coming from sea level that could complicate things further. However, since you are a marathon runner it may well be possible for you. There's just no way for me to speculate. It's 17 miles round trip, with 5,300 ft elevation gain. I've climbed Capitol only once, and just to give you an idea, it took us approx 9 hrs round trip from Capitol Lake. It's very slow going from K2 to Capitol and back. I'd recommend packing in for a night at Capitol Lake, but if you'd like to start from the trailhead then I'd recommend starting very early, like 2 am. In any case, you should be off the summit by noon at the LATEST, as afternoon thunderstorms are the norm in August, and that long ridge between Capitol and K2 is not a place you want to be in a thunderstorm.
Started at 1am and got back to the car at around 5pm so 16 hours RT. I would pack in if I ever chose to do it again. I would NEVER EVER do it as a day hike, like ever ever! That trek out was such a death march when I came to the creek crossing I didn't take my boots off. I just trudged across and went water logged boots the 400' back uphill to the car. What an all day slugfest!