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John Borstelmann

John Borstelmann

Belgian Waffle Ride

30th April, 2022USACalifornia8th, MPRO

John's headline numbers

~101g
Carb per hour
Recommended 90g/h+
~957ml
Fluid per hour
Recommended 500-1,000ml/h
~1,180mg
Sodium per litre
Recommended 1100-1500mg/L
~7.1mg
Caffeine per kg
Recommended 3-6mg/kg

John's strategy

Fueling

Carbohydrate is the main fuel you burn when racing. Failing to fuel properly is a leading cause of underperformance in longer races.
Carb-rich meal

T - 1-4hrs: Ate a carb rich meal (Low in fat & fibre)

Pre-fueled

T - 15mins: Took in a final dose of carb

Carb per hour
Recommended 90g/h+
~101g
John's Energy Rating8/10

"My legs felt good for the entirety of the race."

Our thoughts

This is the first time that we’ve seen John consume more than ~80g/h in a race, and he skillfully exceeded the scientific recommendations for a race of this duration and intensity. We’re seeing more and more elite athletes able to consume and tolerate over 90g/h after undergoing gut training, and John is no exception. He’s been practicing by gradually increasing his intake during long training rides to comfortably hit these numbers with no GI distress. On race day, he largely relied on gels, chews and PF Carb & Electrolyte Drink Mix to support his energy needs. This use of different energy products allowed him to fuel frequently without experiencing flavour fatigue during long endurance races, and his energy levels surely benefitted from the sustained high carb intake.

Hydration

Taking on board an appropriate amount of fluid and sodium is essential to maintaining blood volume and supporting the cardiovascular effort needed to perform on race day.

Whilst the absolute amount of sodium and fluid consumed per hour is important, it’s critical to consider these in relation to each other. This is known as 'relative sodium concentration' and it’s expressed in milligrams per litre (mg/L). How much sodium you’re taking in per litre of fluid is more important than the absolute amount taken in per hour.

John1310mg/L

John has been Sweat Tested to dial in his hydration plan

Sweat sodium concentration (mg/L) is largely genetically determined and remains relatively stable. Knowing how salty your sweat is enables you to replace a good proportion of your sweat losses, which can range from 200-2,000mg/L.

Given John's losses are High (1,310mg/L), nailing his hydration strategy becomes especially crucial when it's hot and/or humid.

Learn more
Pre-loaded electrolytes

T - 60mins: Drank ~500ml of strong electrolyte drink

Fluid per hour
Recommended 500-1,000ml/h
~957ml
Sodium per litre
Recommended 1100-1500mg/L
~1,180mg
John's Hydration Rating8/10

"I had no cramping until the very very end with about 1 mile to go."

Our thoughts

It can often be helpful to decouple the elements of fuel and hydration during longer events, as this allows for adjustments when conditions change, such as environmental temperatures or unexpected race intensities. Having said that, some athletes still prefer to combine their carb, sodium and fluid intake into bottles for ease, and John has found mixing PF Carb & Electrolyte Drink Mix with PH 1000 (Tablets) works well for him. Considering his high fluid intake, the fact that he only had to pee once (while a mechanic spent the best part of four minutes fixing his broken derailleur two hours into the race) suggests he did a good job of staying hydrated whilst not overshooting his fluid needs. John is prone to cramping and did experience some twinges during the last mile, but this may have been due to muscular fatigue rather than dehydration, as his relative sodium concentration was appropriate for his personal losses.

Caffeine

Beyond the Three Levers of Performance (carb, sodium and fluid), caffeine is one of only a few substances that is proven to improve performance for most endurance athletes as it can help stave off mental and physical fatigue.

Pre-caffeinated

T - 0-4hrs: Had a final hit of caffeine

Caffeine per kg
Recommended 3-6mg/kg
~7.1mg
Our thoughts

John always uses caffeine as part of his race strategy and notices the performance-enhancing benefits that the stimulant provides. Although his intake exceeded the scientific recommendations, John has tested this strategy during training and knows it helps to boost his perceived energy levels.

How John hit his numbers

Here's everything that John ate and drank on the day...

Before race (>30 mins)
Pre-race (<30 mins)
  • 1/3 x Energy chew (46g carb, 300mg sodium)
During
  • 4L x PH 1000 (Tablets)
  • 1.25L x PF Carb & Electrolyte Drink Mix
  • 1.4L x Plain water
  • 2 x Energy gel (24g carb, 72mg caffeine)
  • 1 x Energy gel (23g carb, 100mg caffeine)
  • 1 x Energy chew (48g carb, 200mg sodium)
  • 2 x Energy chew (46g carb, 300mg sodium)
  • 2 x Energy bar (21g carb)
  • 1 x Energy bar (21g carb, 20mg caffeine)
  • 4 x Energy gel (35g carb)
  • 3 x Energy chew (37g carb, 75mg caffeine)
  • 3 x Energy gel (22g carb)

Final thoughts

John's Satisfaction Rating7/10

I stayed motivated, pedaled hard and brought back several really fast dudes and eventually finished 8th. Top 10 at such a stacked race is a great result for me, but I knew I could have picked off at least a couple more spots had the mechanical situation been different. Live and learn, I guess.

John

Despite the adversity of his derailleur breaking, John did a great job of maintaining his focus to execute a battling performance and a solid fuel and hydration plan. For future races, John could focus on preloading ahead of time with PH 1500, as well as collecting sweat rate data to ensure his fluid intake is matching his losses.

PF&H

John's full stats

Overall
699g total carb101g per hour
6,650ml total fluid957ml per hour
7,847mg total sodium1,129mg per hour
1,180mgSodium per litre
545mg total caffeine7.1mg per kg

Data Confidence

We rate each of our case studies from 1-5 based on the level of accuracy, and our confidence in the data.

12345

There is an adequate level of accuracy in the data collected and the numbers reported. The athlete manages to recall what they ate and drank including most specifics (brands flavours quantities plausible estimations of volumes). However there are estimations made within the data which affect the overall confidence level in the data reported.

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