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Dan Jones

Pro

Tarawera Ultra-Trail 100k

15th February, 2025
New Zealand
Rotorua
1st, MPRO
Running, Ultra - 102km
21°C
, Hot
7hrs 17mins
more race details

Dan's headline numbers

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?
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~112
g
Carb per hour
Recommended 90g/h+
~703
ml
Fluid per hour
Recommended 500-1,000ml/h
~1,057
mg
Sodium per litre
Recommended 400-800mg/L
~4.2
mg
Caffeine per kg
Recommended 3-6mg/kg

Dan'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
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T - 1-4hrs: Ate a carb rich meal (Low in fat & fibre)
pre-fueled
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T - 15mins: Took in a final dose of carb
Carb per hour
Recommended 90g/h+
~112
g
Dan's Energy Rating
9
/10
"My energy levels were really good throughout the day, with only a small dip between the 70km to 80km mark."
Our thoughts

After hitting ~115 grams of carb per hour during his last major race when finishing 4th at CCC by UTMB in 2024, he again hit in excess of 100g/h in his first race of 2025. As in previous events, Dan primarily fueled with PF Carb & Electrolyte Drink Mix and gels. A big change to Dan’s strategy compared to the same race last year is using PF 300 Flow Gel in soft flasks to more efficiently carry his carbs, in place of a large number of PF 30 Gels. Notably, he experienced no major GI issues during the race, highlighting the effectiveness of his gut training to tolerate such high carb intakes while racing. Interestingly, the carb intake he sustained here and at CCC by UTMB in 2024, aligns with recent research on elite runners, which suggests that consuming ~120g/h is associated with a lower perceived effort and reduced muscle damage, compared to 60g/h or 90g/h. This may help explain why Dan felt consistently strong throughout the race and reported a smooth recovery just 24 hours after crossing the finishing line.

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.

Dan635mg/L
Dan 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.

Whilst Dan’s losses are on the low side, getting his hydration strategy right is still crucial when it’s hot and/or humid as his higher sweat rate in these conditions can result in significant net losses over the duration of a race.

Learn more
Didn't pre-load electrolytes
?
Drinking a strong electrolyte drink before the race could have helped Dan start optimally hydrated
Fluid per hour
Recommended 500-1,000ml/h
~703
ml
Sodium per litre
Recommended 400-800mg/L
~1,057
mg
Dan's Hydration Rating
9
/10
"I could have drank a little bit more during the race, but overall I think my hydration strategy was really good."
Our thoughts

The majority of Dan’s fluid intake during the race came from PF Carb & Electrolyte Drink Mix, with only a small amount of plain water consumed alongside it. This likely contributed to his relative sodium intake, which was slightly higher than his sweat losses, but this is a strategy that Dan has successfully employed in previous races as well. Dan typically carries his fluid in one or two handheld flasks and often starts races with additional soft flasks pre-filled with PF Carb & Electrolyte Drink Mix, allowing him to simply add water at unmanned checkpoints. This strategy enables him to efficiently sustain a high rate of carbohydrate intake, whilst maintaining his sodium and fluid intake.

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.

Didn't pre-load caffeine
?
Consuming caffeine in the hours before the start may have increased perceived energy levels
Caffeine per kg
Recommended 3-6mg/kg
~4.2
mg
Our thoughts

Dan’s caffeine intake during the race fell in line with the general recommendations of 3-6mg/kg, achieved through regular consumption of PF 30 Caffeine Gels. This consistent intake no doubt helped him maintain a consistent circulating concentration of caffeine in his bloodstream, maximising the ergogenic benefits of this stimulant. Beyond carbohydrate fueling, Dan has also focused on training his gut to tolerate caffeine within the recommended range, ensuring he can confidently execute his strategy on race day. Swapping out his pre-race PF 30 Gel for a PF 30 Caffeine Gel could be one way for Dan to increase his caffeine intake towards the upper end of the recommended range.

How Dan hit his numbers

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

Dan's weapons of choice

Final thoughts

Dan's Satisfaction Rating
9
/10
I’m just super stoked with the race and how it all came together on the day.
Dan
Dan claimed victory at the Tarawera Ultra-Trail marathon for the third year in a row, and with it set a new course record! His ability to consistently consume 100-120g/h of carbohydrates in races not only allows him to maximise his capacity to burn ingested carbs at the theoretical maximum rate, but also likely reduces muscle damage, supporting faster recovery post-race.
PF&H

Dan's full stats

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Overall
815g total carb
112g per hour
5,130ml total fluid
703ml per hour
5,420mg total sodium
743mg per hour
1,057mg
Sodium per litre
290mg total caffeine
4.2mg per kg

Data Confidence
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We rate each of our case studies from 1-5 based on the level of accuracy, and our confidence in the data.
1
2
3
4
5

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.

Dan's recent case studies

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