Eddie Kim, of Denver, picks his way across the rock face while bouldering on Flagstaff in Boulder last year. Peter Beal is offering an hour-and-a-half tour of Flagstaff s bouldering areas on Saturday morning.
MARK LEFFINGWELL
Eddie Kim, of Denver, picks his way across the rock face while bouldering on Flagstaff in Boulder last year. Peter Beal is offering an hour-and-a-half tour of Flagstaff s bouldering areas on Saturday morning.

If I were going to run the 24 Hours of Boulder on a team this weekend, this would be my strategy: run hard until about 9 p.m.; accidentally eat Ambien-laced food (like Alberto Contador with Clenbuterol); hope for that weird sleep-aid side effect that usually involves driving or eating but could (maybe?) cause me to run like hell while sleeping through the night.

Wonder if that’s a banned substance…

Other runners employ different strategies for the 24-hour race and the Boulder 100 — both run at the same time on the same course along the Boulder Reservoir, starting at 9 a.m. Saturday.

“We had one guy who laid down for five hours, threw up, couldn’t hold any food down, and then got up and ran another 45 miles,” said race director Reid Delman, who has been putting the race on for seven years.

Perhaps I’m biased, but I like my sleep-running strategy better than the puking strategy.

Quasi-related note: Why am I always writing about puking? I get that people in Boulder like to push themselves beyond fatigue into total physical and psychological meltdown, but must we vomit?

Info: Race-day registration from 6:30 to 8:30 a.m. Saturday. geminiadventures.com

A movie, a wardrobe error

Friday night is movie night at Prana Boulder .

It could also be: date night, girls’ night out, get-psyched-to-climb night, buy-stuff-at-the-Prana-store night.

Which reminds me: You’re one Prana shirt shy of looking like you’re sponsored. The line between sponsored and Boulder Casual is a fine one.

Good talk.

Prana will be showing one of the six episodes from Sender Films’ First Ascent series and serving free Avery beer and popcorn.

Which one will they show? If they show “Alone on the Wall,” I will be too tense watching the crazy soloing to drink any beer. And if they show “Brother’s Wild,” with Timmy O’Neill, odds are good I’ll laugh beer out my nose.

Maybe chug before the movie starts? Just don’t puke — you’re not running 100 miles to justify such behavior.

Info: Starts at 7 p.m. Friday; free. prana.com/boulder-store.html

Tour de Flag

Every time I try to go bouldering somewhere new on Flagstaff, I get kind of lost. This is because I casually look up beta online but don’t print anything off or bring a guidebook.

Wandering is fun.

If you disagree, go Saturday morning so you can have an experienced guide — Peter Beal is offering an hour-and-a-half tour of Flagstaff’s bouldering areas .

Peter is a good guide. He showed me around Chaos Canyon. He also talked me into topping out highball problems. This is what happens when you say to a real boulderer, “hey, let’s go climbing,” so be careful what you ask for.

There’s no time to climb during the tour, but afterward, go get your Flag season started. Again, no puking.

Info: Meet at the First Overhang parking area, on the last hairpin turn before the summit, at 10:30 a.m.. bouldercolorado.gov or mountainsandwater.com