A couple of weeks ago, I raced the Mt. Diablo Challenge for the first time. I finished:
I finished in the top 27% overall and top 23% in my age group doing 233 watts, about 3.45 w/kg. However, I don’t have any doubt I can finish in one hour with possibly a top ten finish. Before I talk about why, here are my impressions of the event:
- Mt. Diablo is a well known San Francisco Bay Area Climb. But most of my riding has been in the South Bay (Mountain View to Morgan Hill) and Sacramento. It was my first time riding this famed climb.
- Driving into the parking lot at 7:30AM reminded me of when car enthusiasts get together to show off their cars. Even though I’ve been to plenty of mass rider events, I felt such a strong concentration of “Wow, that’s a $10K bike! There’s another…and another”
- The view going up and down was great. I really enjoyed the descent, riding with a hundred other people down the road, just awesome views and a happy feeling traveling with so many people. I don’t do a lot of social riding, and even then I’m not a talker, but just being with so many people not needing to talk fulfilled my togetherness quota for the year. As you near the finish line, those who finished before you are waiting to urge you in the final (super steep) section. That’s me below watching (yes, eyes are closed) the people climb up.
Now here’s why I am confident about achieving the 1 hour mark (you get a special shirt for it too!) next year:
- I participated in the Sacramento Century (100 miles but less than 1000 feet climbing) the day before. While my IF (intensity factor) was a relatively conservative .64, this turned out to be my highest all time power for the 5hr 10 minute ride. My back was hurting during the ride and my legs were a bit worn even after the night’s sleep. Clearly, I didn’t come in fresh. I thought I’d warm up and feel good after starting the ride, especially with a boost from caffeine, but I felt the effects of the previous day throughout and I started losing a lot of power in the second half of the climb.
- Why was I silly enough to schedule two events like this back to back? I actually didn’t know they were back to back until about a month prior – I had already been signed up for a few months at that point. I would have preferred to do Mt. Diablo first, but that wasn’t up to me. I decided to keep the century ride because I thought my pace would be casual enough so I’d be ok for the race. I knew there was a risk but I just wanted to keep both events since I’d never done either before.
- The week before the race I had done 269 watts over 28 minutes on a simulated Zwift climb. People like to say FPT power is the theoretical max 1 hour power someone can produce. If you don’t want to do a hour hour test, they’ll take 95% of a 20 minute test. Using that 28 minute power, my FTP should have been at least 255 watts. My guess is that I am closer to 260 watts. This is BestBikeSplit’s guess for what I could do at that rate. Looking at this year’s results, top ten finishers are right below the one hour mark.
My own tips for next year’s race:
- I’m not doing 100 miles the day before the event. Complete rest at least 4 days before the event, focusing on good sleep.
- I didn’t understand the bathroom situation so I waited in a long line where I picked up my packet. A few miles away at the race start, there are plenty of bathrooms. No more stress next time.
- I’m taking off all my bottle cages and not bringing water. I brought one water bottle this time, but I didn’t need it, and it’s really hard to go all out and drink without losing momentum. I’ll drink during the drive over and then pee at the race start. That’s a saving of at least 1.5 pounds, almost 10% of my bike’s weight.
- I’m not sure how far I want to go weight weenie, but I could also go with thinner tires. I went with 25mm/32mm front/rear since that’s just my normal setup, but I could see myself going 25mm/25mm just for the mental benefit. I’m curious about this cassette to save another .2 pounds, but I think that’s overkill and I’m worried about its reliability.
- I am highly dependent on my Halo headband to absorb sweat and like an idiot, I forgot mine in the car. I was already miles away going to the race start when I realized this. Since the morning was cool (around 55F), I didn’t get affected by sweat too much, but it was definitely a mental stress and I did have to handle it a few times. Again, when you’re going full out for an hour, every little distraction can kill momentum.
- I didn’t use sunglasses to avoid sweat and visibility issues (and a little weight) and that was the right decision. I was good with my clothing choice, and didn’t use gloves.
- I had two caffeine bars (around 160mg total) but I think one would have been fine as I don’t consume caffeine often. I’ll test this a bit over the next year.
- Training – I’ll work on 1 hr climbing over the next year and if I’m consistent I think I could gain up to 10 more watts (4% increase) and lose 2kg. The power gain is fairly modest.
I Spit Hot Fire 