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Tabor Hemming

Tabor Hemming

California International Marathon

8th December, 2024USASacramentoTop 50, FPRO

Tabor's headline numbers

~93g
Carb per hour
Recommended 90g/h+
~334ml
Fluid per hour
Recommended 250-750ml/h
~1,500mg
Sodium per litre
Recommended 800-1200mg/L
~1.8mg
Caffeine per kg
Recommended 3-6mg/kg
Image Credits: @precisionfandh

Tabor'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+
~93g
Tabor's Energy Rating10/10

"From an energy perspective, I had amazing energy levels throughout the race."

Our thoughts

Since Tabor was racing in the elite field, she had access to the pro aid stations at every 5km. This meant she could use a relatively simple nutrition strategy, picking up a bottle of fluid and one PF 30 Gel at each aid station. Except for the first stop, where Tabor mentioned she felt a little full, she picked up and consumed a PF 30 Gel every 5km. By doing so she was able to meet the recommendations of 90g/h for carbohydrate intake for her race intensity, a quantity that will have contributed positively to her energy levels throughout. Despite noting some GI issues which required her to take a short bathroom break at ~18 miles, she recognised the importance of continuing to fuel throughout the race. This is a huge positive and showcases a true champion mindset!

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.

Tabor960mg/L

Tabor has been Sweat Tested to dial in her 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.

Whilst Tabor's losses are on the moderate side, getting her hydration strategy right is still important if she wants to perform at her best.

Learn more
Pre-loaded electrolytes

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

Fluid per hour
Recommended 250-750ml/h
~334ml
Sodium per litre
Recommended 800-1200mg/L
~1,500mg
Tabor's Hydration Rating6/10

"The hydration plan was perfect, but the execution wasn’t. I probably could have consumed more liquid but was having some stomach issues in the race."

Our thoughts

Tabor placed a bottle containing water and PH 1500 (Tablets) at each of the pro aid stations with the aim of consuming small but regular volumes of fluid throughout the race. She noted some ‘sloshing’ in her stomach, which contributed to her GI issues, and as a consequence her overall fluid intake ended up being slightly lower than she would have liked. Given the relatively cool conditions on race day, it’s likely she consumed sufficient fluid and electrolytes to maintain a decent hydration status and replace a good proportion of her sweat losses, especially since she didn’t experience any significant cramping during the race. The only cramping she did experience she attributes to the intensity of her effort and surface of the tarmac.

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
~1.8mg
Our thoughts

Tabor had a small black coffee a couple of hours before the race, as well as a PF 30 Caffeine Gel in the final 30 minutes ahead of the start. These two doses added up to still be slightly lower than the recommendations for caffeine intake during a marathon distance race, although consuming more may have exacerbated her GI issues. Finding the optimal caffeine strategy for her road races, which are typically of a higher intensity than the ultra-marathons she largely raced in 2024, should be an aim for the coming season to ensure she reaps the benefits the stimulant has to offer.

How Tabor hit her numbers

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

Before race (>30 mins)
Pre-race (<30 mins)
During

Final thoughts

Tabor's Satisfaction Rating5/10

I want more! There is more potential there to unlock for sure, and on reflection I need some more training time on the tarmac to help overcome some of the cramping in the quads which was probably linked to the effort level and impact.

Tabor

The real positive from the race was that Tabor’s energy levels were solid throughout, even though she experienced some GI issues. Moving forward, she plans to spend some time training her gut to tolerate a little more fluid while running at race intensity, as well as dial in her caffeine strategy to figure out the sweet spot of doses.

PF&H

Tabor's full stats

Overall
243g total carb93g per hour
875ml total fluid334ml per hour
1,313mg total sodium502mg per hour
1,500mgSodium per litre
100mg total caffeine1.8mg 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.

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There is some confidence in the quantities and brands of products consumed but the data may lack specifics (e.g. volumes specific flavours). A high number of estimations have been made and the room for error is moderate-high. There may also be the possibility that some intake has been grossly over- or under-estimated.

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