The Course
I first became aware of the Double Dipsea soon after joining the running club. Many of the older members of the club were sporting shirts featuring a devastating-yet-alluring course map:Official course map:

The Double Dipsea course goes from Stinson Beach, through Mount Tamalpais State park and Muir Woods National Monument, before heading down the 671 steps of an epic set of staircases into the town of Mill Valley.
Some of the sections of the course are called Insult Hill, Steep Ravine, Cardiac Hill, and Suicide Hill.
Then you turn around and head back the way you came (including right back up those 671 steps!!).
13.7 miles (I'd soon find out this was very conservative) and 4,500 feet (give or take) of elevation gain.
It's called the Double Dipsea because the Dipsea Race is the oldest trail race in the country (over 100 years!) and goes only one way (from Mill Valley to Stinson Beach). Walt Stack, founder of Dolphin South End Runners (my running club), decided to start the Double Dipsea in 1970 because the regular Dipsea wasn't tough enough!
Race Peculiarities
Double Dipsea has some very unsual elements to both the course and the way it is run...
Handicapped start times
Women over 80 years old start first and Men 16-39 start last. Because the course is an "out and back" this means that every division collides at various points of the course and aid stations. In many sections the course is incredibly narrow so collisions of the physical kind are not uncommon.
There's a SERIOUS stairs section (671 steps — up and down!) at the end of the first half / start of the second.
Cruelly, the stairs are awkwardly shallow and the height/depth of each step changes from one staircase to the next.
Also worth noting that the trails are not closed off to hikers/tourists during the race so they're a very real obstacle that need to be accounted for when charging down the hills. The race starts on a Saturday morning and ends in the late afternoon so it's a popular time for people to be out on the trails.
Also worth noting that the trails are not closed off to hikers/tourists during the race so they're a very real obstacle that need to be accounted for when charging down the hills. The race starts on a Saturday morning and ends in the late afternoon so it's a popular time for people to be out on the trails.
An Opportunity Presents Itself
Like Bay to Breakers, the Double Dipsea sounded intimidating. Look at that elevation! Look at that distance!I was feeling pretty bold on June 9th after completing my first 10 mile run and posted the following to the DSE Runners FB group:

The responses were not trending in my favor. I forgot about the Double Dipsea and continued on with my life / marathon training.
Then, on June 16th, I ran my first half marathon distance. It was just under 3 loops around Lake Merced and I had done it even though my marathon training schedule had only called for 12 miles.
I was worn out but excited to have run my first half and in under 2 hours. Then I logged onto Facebook later in the day and saw this:

I shouted "AH ME!!!" before it occurred to me that Double Dipsea was just 2 days away.
Whoops.
A large part of me was telling myself I shouldn't be attempting this trail race so soon after my first half marathon distance. My body wasn't exactly feeling amazing though it wasn't anything outside the ordinary either.
The loudest part of me was insisting that I could always walk the thing if I fell apart out of the blue a few miles in.
The next day we got the Race Director to approve a raceday bib transfer and I Venmo'd $100 (I forgot how much these fancy races cost considering the DSE races every Sunday are only $3) to Shaun and wished him a speedy recovery.
Then I went home and tried to get a good night's sleep. It was crucial considering I had gotten a mere 4 hours the night before. I set Sleep Cycle on at 10:37pm and fell asleep shortly thereafter.
Goals
I wasn't intending on getting the opportunity to run this race so this was all very last minute. I also just ran my first half marathon 48 hours prior. Due to these circumstances, I had a modest goal: FINISH THE RACE (without injuring myself and while having a fun time).
Race Morning
I got up at 6:28am with plans to get a bagel down the street but time passed too quickly and I realized I needed to head out towards the Golden Gate Bridge before the market was going to be open.Upon waking, I quickly threw some items into a reusable grocery bag; my iPhone armband, my wallet, Barbarian Days, a Clif Bar, a mason jar with a scoop of BCAA from my bodybuilder housemate (for post-race), a water bottle, my earbuds (in case I needed to make a phone call) and my chrome backpack which held my laptop and a spare pair of clothes.
I left at 7am on the dot to make sure I'd have plenty of time to drive across the bay and get to Stinson beach so I can check out the area and get the bib transferred.
It was a two lane cliffside road all the way from Sausalito to Stinson Beach. It was the type of winding route that made 35 miles per hour seem aggressive and your abdominal muscles tightened with every turn.
All of a sudden everything gave way and the entire view opened up to Stinson Beach below the highway.

As I pulled into the beach parking lot I was immediately taken aback by how physically fit everyone participating in the race looked. I felt a bit out of place.
I got the bib transferred to me officially but it still said "Shaun" in giant letters on the front. This would be very important later on.
I walked over and took a look at the beach before heading to my car to drink some water and eat my Clif Bar. Time was moving quickly. I put on some sunscreen and walked quickly to the starting line.
Fear overcame me as my stomach told me I needed to relieve myself before this race started. (POOP WARNING) I bolted to the bathroom, emptied my bowels, and ran back to the starting line just before they counted down from 10.
The Race (to Mill Valley)
The horn blasted and we were off to the sounds of Mott the Hopple's All the Young Dudes. Such an interesting choice that gave me a blast of energy.I was under the impression that this would be a race people run the entirety of (like all of the road races) and I was a bit concerned I wouldn't be able to run the steepest sections. As it turned out most people did these sections as more of a fast-paced hike than a run. We headed up Insult Hill and a photographer snapped this shot of me. I believe he was the first person to yell "Go Shaun Go!"
The first aid station came soon after this photo was taken. Oddly, this would be the most necessary aid station (going in both directions). The hills were fairly steep, the sun was pounding us, and we had yet to really experience any downhill.
I quickly scoped out the station. It was stocked with some good munchies and water and electrolyte drink (unsure brand). I took a Rice Krispie, swigged some water and went on my way.
We went into the woods and I started running downhill while paying close attention to all of the rocks and roots. I was excited to finally be in the shade and moving faster.
Then the hills started back up.
All of the uphill sections were more of a fast hike than a run. I'd say the roughest part early on was feeling the strain of the course but not having a good way to really conceptualize just how grueling the rest of the journey to the halfway point would be - it was completely impossible to determine how much gas would be needed for the way back.



