Wednesday, April 16, 2014

Mad City 100k USATF Road National Championships

My Goals

My main goal going into Mad City 100k was to improve my chances of qualifying for Team USA's 100k squad, which will be competing at the IAU World Championships (WC) in Doha, Qatar this Fall. The system used to pick qualifiers for the team is based on a body of work,  but certain races, terrains, and distances are weighted heavier than others. For example, my time at Ice Age, Chicago Lakefront, Tussey Mountainback, and my 100k split from Desert Solstice all could be entered into a pool for consideration. However, the most clear-cut way to get on the team is to either finish in the top 10 at the WC, or win the National 100k Championships. With last year's WC being cancelled, the Mad City 100k was all that was left to secure my entry.

I went into the race knowing that I didn't necessarily have to win in order to make the team. I have a decent body of work that would likely look pretty solid come selections. With that said, I didn't want to leave anything to chance, so winning was plan A.

I didn't feel like I was going into this race peaking or primed. I had spent the bulk of winter optimizing my body for longer, slower efforts on the track (in preparation for Desert Solstice and the South Carolina 24 Hour). Mad City 100k is comprised of ten relatively flat 10 kilometer road loops, but it is by no means the fastest 100k you could ask for. I would be lying if I said I wasn't at least a tad skeptical about my speed and the condition of my quads for withstanding the small, paved rollers. My saving grace was the fact that I had managed to run a pretty solid 400m workout and a really satisfying progression run in the weeks leading into the race.

I've wanted to qualify for Team USA's 100k squad ever since I completed my first ultra back in 2010, when I raced and met Matt Woods at the North Face Midwest Regional 50 Mile. Matt was great, and as a former team member he encouraged me to try to qualify. I was young, so I knew I had time, but it has always been at the back of my mind.

The Race

Before anything, a huge thanks to my crew of Krista, Beth, Mom, Dad, and Grandma who put up with the monotony of killing time to see me for a few seconds every 40 minutes, and handing off my fuel along the way. Also, to Tim (Timo) Yanacheck for putting on a great organized event, and finding some great volunteers to help out along the way.

Photo courtesy of Brian Finnel
The race started off comfortable. Everyone was anxious about the thunderstorms in the forecast, but any worry was for naught, seeing as they never fully arrived. About midway through the first loop, Nick Accardo and I broke away from the pack of 4-5 guys that started out together. Nick and I were hitting laps very consistently and chatting a bit for the first two loops. By the halfway point of the race, all our loops were between 40:35 and 39:27.1, which comes out to a 6:26.6/mi pace. I felt great and even started to plan ahead: I was on pace to finish under Andrew Henshaw's previous course record. I could tell at this point that I was going to be able to at the very least keep my time under 6:45, barring anything tragic. This was calming, as adding a 6:45 to my previous results would all but solidify a spot on the Team USA 100k team.

After completing lap five, I gradually pulled away from Nick; by the 60k point, I was alone. I began to process getting the next two laps done as a big benchmark. Six days earlier I did my final workout with my roommate, friend, and former collegiate teammate Brian Finnel (a 2:23:45 marathoner). We did a warmup lap around the Mad City Loop and then broke into a progression run. I kept thinking, "If I can maintain my pace over these next two laps, all I have to do is exactly what I did last Sunday!" Laps seven and eight went by smoothly.

Lap nine felt like a bit of a grind.  My quads began to process the beating I had been giving them for the past 5 hours and 21 minutes. The weather, which had turned out ideal with the exception of a slight warming in the late morning, began to offer up a cold and heavy wind. The flat section at the end of each lap became more of a challenge. When I crossed the line, completing my ninth lap, I thought I had run a much slower time than I actually did (I ran 40:29, but it felt closer to 43:29). This was probably good, because I had a mindset of needing to push hard for the final go-around. The last lap ended up being my slowest (42:03, in part due to the increased wind), resulting in a finish time of 6:44:03. Minus the last lap, my 10k splits were all within 1:08 of each other. I was pumped about the consistency for a course that had some variation, unlike the 400-meter tracks on which I ran my last two events.

Photo courtesy of Roy and Chris Pirrung

Team USA

I was really pumped to cross the finish line. By winning and setting the course record, I guaranteed my spot on the team. I am really looking forward to planning my training for WC this Fall. I now have a general idea of what I think I am capable of in the 100k distance, and it will be exciting to really get after it by increasing speed and intensity training this Summer and Fall.

Fueling

My fueling strategy for Mad City 100k was quite simple. I took the information I got from my VO2 Max test at the FASTER Study to crunch some numbers. I am pretty well fat-adapted, so I assumed even with mediocre glycogen stores I would be able to get by with around 150 grams of carbohydrate per hour. I have dabbled in consuming fat calories during longer races, but at a race like Mad City, where I was hoping to run at or below 6:30/mi, I knew there was no sense in ingesting fat during the race. Even the leanest athletes have plenty of body fat to tap into, and I would be done by early afternoon, so I didn't have to worry about going a full day or more without eating solid foods. My fuel was simple. I consumed watered-down Mountain Dew with Extreme Hydro-X (roughly 12-16 oz per hour), three gels, and a Vespa Junior every two laps during the race. It came out to about 1,100 calories that I slowly dripped into my system over the course of the run.  This is a strategy that I learned from Peter Defty. It's a key component of his Optimized Fat Metabolism (OFM) protocol. Doing the math, I consumed roughly 163 calories per hour. I was thrilled to see this! I had no bonk and was hitting sub-6:30/mi pace the majority of the day (see complete split breakdown below). Before I became fat-adapted, I would have definitely bonked going this pace for 100k averaging well under 200 calories per hour.

Gear

Fuel

Splits

10 Kilometer Loops

  1. 40:35
  2. 40:27
  3. 39:27.1
  4. 39:29
  5. 40:20.3
  6. 39:50.6
  7. 40:27.5
  8. 40:53.7
  9. 40:29.8
  10. 42:03.9
Total: 6:44:03.9

Miles

  1. 6:37.70
  2. 6:23.97
  3. 6:32.89
  4. 6:16.62
  5. 6:14.82
  6. 6:31.42
  7. 6:37.47
  8. 6:27.62
  9. 6:37.82
  10. 6:23.00
  11. 6:32.13
  12. 6:23.99
  13. 6:23.76
  14. 6:28.07
  15. 6:28.45
  16. 6:22.65
  17. 6:17.11
  18. 6:14.58
  19. 6:08.29
  20. 6:25.03
  21. 6:17.41
  22. 6:25.37
  23. 6:14.46
  24. 6:15.53
  25. 6:20.07
  26. 6:29.97
  27. 6:22.07
  28. 6:27.42
  29. 6:49.97
  30. 6:17.97
  31. 6:21.59
  32. 6:22.39
  33. 6:32.43
  34. 6:34.40
  35. 6:20.24
  36. 6:19.95
  37. 6:23.46
  38. 6:27.57
  39. 6:34.56
  40. 6:39.23
  41. 6:30.13
  42. 6:30.15
  43. 6:25.56
  44. 6:21.76
  45. 6:38.35
  46. 6:36.34
  47. 6:38.66
  48. 6:25.37
  49. 6:26.38
  50. 6:27.08
  51. 6:46.05
  52. 6:40.64
  53. 6:54.42
  54. 6:30.38
  55. 6:32.39
  56. 6:35.88
  57. 6:36.60
  58. 6:50.63
  59. 7:05.46
  60. 6:40.38
  61. 6:17.96
  62. 6:26.26
  63. 2:04.36 (.35 miles, 6:00/mi pace)
Total: 6:44:03.9

12 comments:

  1. Great work and thanks for the plug Zach!

    ReplyDelete
    Replies
    1. Credit will be given where credit is due Peter. Thanks for all your help over the years.

      Delete
  2. That is awesome man. You really inspire me I'm hoping to get to the point of knocking off consistent splits like that.

    ReplyDelete
    Replies
    1. Thanks Josh! It's been a fun journey. Keep working man!

      Delete
  3. Congrats, Zach, on an awesome race and on solidifying your place on the US 100k team. I just had to let you know that I have been following your diet with great interest and appreciate the details you provided from the race. I have been trying a similar diet myself the last almost 3 months now and ran a trail 60k last weekend in 5:14 consuming around 250 calories total with no energy lows (I only weigh 49 kilos, so don't need much to begin with) and this was about 6x less than what I ate at the same race last year! It's really fascinating. I am kind of surprised I saw such an effect after just 3 months. Anyway, thank you so much for making your training and fueling strategies public. I'm gathering I won't see you at Ice Age, though that would have been fun. Take care and thanks again - Tracy Høeg.

    ReplyDelete
    Replies
    1. Hey Tracy, thanks for reading and following! It's sometimes tough to pull the trigger on switching up a nutritional routine, but it certainly has paid off for me, and sounds like you too! I'm glad I could help. 6x less is awesome!

      I am coming to IA50! It will be interesting to see where my trail legs are, especially against what seems to be a mounting competitive field. But it's a party I don't want to miss :) Jeff Mallach does a heck of a job with IA50.

      Delete
  4. way to go Zach, keep up the hard work!

    ReplyDelete
  5. Hi Zach,
    The races you've been doing recently are awesome. Thanks for sharing on your blog. I've done a few Ultras myself and will be doing my first 100km road race representing Wales at the Anglo Celtic Plate in Kent, England.
    I'd love to go to Doha. Being realistic it's possible but only if I do my best and everything goes right.

    ReplyDelete
  6. Hi Zach, didn´t you make mistake? You wrote: I am pretty well fat-adapted, so I assumed even with mediocre glycogen stores I would be able to get by with around 150 grams of carbohydrate per hour. PER HOUR? Not for all race? Because your body cannot absorb more than 60 g exogenous glucose per hour or 60+30 g exo glucose+fructose per hour.

    And you ate only 163 kcal per hour, not 600 = 150 g CHO

    thanks

    ReplyDelete
    Replies
    1. Hi Martin, thanks for reading! No mistake here. In fact, I probably ate more CHO than I needed. If you read some of my earlier posts about using OFM (Optimized Fat Adaptation), a high fat diet approach that uses ketosis and CHO strategically, you will see the science behind why I don't need much CHO. The basic principle is that my fat oxidation rates are so high that I need very little carbohydrate for fuel. My body has adapted to using fat as it' primary fuel source. I was tested at the University of Connecticut by Dr. Jeff Volek last March. My maximum fat oxidation rates reached 1.58 g/min. (it wasn't long ago that it was thought that athletes couldn't eclipse 1.0 g/min.). If you look at the average pace I had at Mad City, and extrapolate my maximum fat adaption rate forward, you can see that my need for carbohydrate is quite low. So my goal is definitely not to replace all calories burned with exogenous sources of carbohydrate. It would be impossible to meet those calorie needs with that approach (this is why people bonk). The main reason I went to a high fat diet originally.

      Delete
    2. Hi,
      thank you. Yes I know about that. I thought you planned eat 150 g CHO per hour. So 163 kcal (maybe 150 from CHO) = 37.5 g CHO/h = around 250g CHO in all race Mad City. And it was in your opinion more CHO(glycogen + glucose) than you burned?

      Can you tell me in what %VO2 max you run 100 mile, 50 mile, 100 km, 50km and maraton. It depends on route I think and you change pace but some average.

      I suppose (km/miles):
      161/100 - 65% VO2 max
      100/62 - 75
      80/50 - 84 ???
      50/31 - 84
      42/26 - 84

      I need it because of my book in whom I am writing about you. I sent you email too, but you don´t respond yet.

      I have your results only for 75, 84 a 96 % VO2 max. I did table for your estimated fuel needs during mentioned races, but I can work only with that 3 numbers.

      Thank you for your time

      Delete
  7. Hi,
    World Championship in DOHA was cancelled? Did you race in Czech republic in juny 2014? You mentioned it in podcast - http://www.enduranceplanet.com/zach-bitter-on-nutrition-benefits-of-optimized-fat-metabolism-for-endurance-athletes-incorporating-speedwork-in-ultra-training-his-2014-goals-and-more/

    If so, how you finished?

    Thanks

    ReplyDelete