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Leon Chevalier's scorecard

IRONMAN World Championships

Saturday 7th May, 2022

Within recommended ranges

Just outside recommended ranges

Significantly outside recommended ranges

  • 90g

    Carb per hour
  • 720mg

    Sodium per hour
  • 892ml

    Fluid per hour
  • 808mg/L

    Relative sodium concentration
  • 521mg

    Total caffeine
  • How Leon hit those numbers

    800ml x PH 1500 (Tablets)
    300g x Banana bread
    400ml x Black tea
    1 x Energy gel with caffeine (22g carb, 75mg caffeine)
    *** Try to avoid drinking too much at this point in the race!
    2.5L x PH 1500 (Drink Mix)
    3 x PF 90 Gel
    2.4L x Plain water
    2 x Energy gel with caffeine (22g carb, 75mg caffeine)
    2 x Snickers
    600ml x PH 1500 (Drink Mix)
    4 x PF 30 Gel
    1.8L x Plain water
    1 x Energy gel with caffeine (25g carb, 100mg caffeine)
    2 x Energy gel (25g carb)
    300ml x Red Bull

    How Leon's hydration and fueling went...

      • Leon produced an impressive debut effort at his first IRONMAN World Championship, finishing 6th in a blistering time of 08:01:41
      • Leon spoke to the Precision Fuel & Hydration’s Sports Science team after the race and said: “There are some things to work on but I can’t be disappointed with 6th at my first World Championships”
      • Leon nailed his pre-race plan for his fuel and hydration throughout the bike and run, feeling that “it couldn’t have gone much better”
      • During the marathon, as the temperatures soared to ~35℃/94℉, Leon managed to take on ~89g of carb per hour, which helped fuel him to a 2:46 marathon


      • Leon preloaded his sodium levels the night before the race by drinking ~500ml/16oz water with one PH 1500 tablet, and by sipping on ~800ml/27oz of PH 1500 on the morning of the race
      • This tactic has been used by Leon with great success in the past, ensuring his blood volume and hydration status were optimal, which was particularly important considering the hot temperatures in Utah
      • Leon headed out onto the 180km bike course fully stocked with two 1L/32oz bottles and one 500ml/16oz bottle, each containing PH 1500 Drink Mix and one PF 90 Gel in each
      • Leon increased his sodium content on the bike and run during this race compared to previous IM races. He took on an impressive ~5,759mg of sodium, averaging ~1,080mg/hr on the bike and ~390mg/hr on the run, and therefore the relative sodium concentration of his whole race intake was 808mg/L. We'd recommend he increases this in future races to reflect his high sweat sodium concentration of 1,392mg/L (mg/32oz), and avoid any potential negative side effects of sodium depletion
      • Leon didn’t experience any cramps during the race, but felt his hips tighten as he bent down to pick up a competitors running hat on course, and after safely returning it to him the twinges went away
      • As a whole, Leon rated his fueling and hydration strategy a 10/10 and said he would only consider changing the timings of when he consumed some of his sodium and fluids


    Quick Carb Calculator Recommendation


    carb 30 mins before


    carb per hour during
      • Leon ensured his liver glycogen stores were topped up on race morning by eating his usual ~300g of banana bread
      • In the 30 minutes prior to the race start, Leon had a caffeine gel (~100mg caffeine) which will have stimulated his central nervous system and increased the presence of adrenaline in his bloodstream, thus heightening his sense of alertness
      • In some of his previous IM races, Leon has hit carb intakes in excess of ~110g/hr on the bike and ~90g/hr on the marathon, which is hugely impressive during such a long event
      • For St. George, Leon planned to hit similar numbers by adding PF 90 Gels to his electrolyte drinks as he was keen to get his fuel and hydration from one source, whilst saving himself opening packets during the bike leg
      • This strategy isn’t something we’d advise all athletes to follow. Some can find that they suffer GI distress from adding everything together. You also run the risk of losing both your hydration and fuel if you drop a bottle. However, Leon has practised this technique rigorously during training and he feels it’s a more efficient way to get his carb, sodium and fluid on board during races
      • Leon crushed his fueling strategy by consuming ~718g of carb over the whole race, split into ~104g/hr on the bike and ~89g/hr on the run. This is an impressive quantity of carb to maintain across ~8 hours of racing, on what was a gruelling course in Utah
      • He felt his energy levels did drop slightly between 2-3 hours on the bike, and felt he couldn’t push much power at all. In an attempt to combat this, he took a caffeine gel sooner than he planned, and within ~40 minutes he felt strong again, as he began the longest and steepest climb on the course, Snow Canyon
      • Leon utilised what has become a staple part of his on-the-bike fueling - two Snickers bars. This small dose of ‘real food’ has really helped Leon in past races by providing a morale boost and they had the same effect during this race
      • These high carb numbers and regular caffeine intake helped Leon maintain good energy levels throughout the race, and finish strongly. During Leon’s last IM race in Mallorca - a race he won, his energy levels began to dwindle in the final kilometres of the run, and was reduced at times to a walk on the marathon. Leon had no such worries this time as he crushed the final miles of the marathon to finish strongly, passing a number of competitors on the way


      • Overall, Leon enjoyed a successful IM Worlds debut as he clocked the 6th fastest marathon of the day to secure a top-10 position
      • Leon rated his race satisfaction as a 9 out of 10, saying “I had my best IRONMAN run to date, but you can always improve”
      • Overall, Leon is pleased with how he performed at his first major IM championships and comes away knowing what he can work on to go even better at the 2022 Worlds in Hawaii later this year

    Key info

    Leon Chevalier

    Sweat sodium concentration
    Sweat sodium classification
    Very High
    * determined by a PH Advanced Sweat Test


    Overall Time
    Swim Time
    Bike Time
    Run Time

    Event information

    Full distance
    IRONMAN World Championships
    Utah, USA
    7th May, 2022
    Swim Distance
    3.8km / 2.4mi
    Bike Distance
    180.2km / 112.0mi
    Run Distance
    42.2km / 26.2mi
    Total Distance
    226.2km / 140.6mi
    Bike Elevation
    2,248m / 7,375ft
    Run Elevation
    431m / 1,414ft
    Total Elevation
    2,679m / 8,789ft

    Race conditions

    Weather Conditions
    Very Hot
    No Rain
    Min Temp
    21°C / 70°F
    Max Temp
    35°C / 95°F
    Avg Temp
    29°C / 84°F

    Athlete feedback

    Race Satisfaction
    Hydration rating
    Great strategy, I wouldn't change a thing
    Energy levels
    Slight bonk on the bike but recovered ~40 minutes later. I crossed the line having emptied the tank
    Toilet stops
    Only in the swim warm-up, nothing during the race
    GI comfort
    Felt sick at times but these moments passed
    No cramping

    Leon's Thoughts

     The best run I've ever executed but 9/10 because you can always improve

    Leon's full stats

     Carbohydrate (g)Sodium (mg)Fluid (ml)Caffeine (mg)Relative sodium concentration (mg/L)
    Total intake7185,7757,150521808
    Per hour9072089265
    Bike and Run
    Total intake6965,7597,150446805
    Per hour988111,00763
    Total intake4504,6794,4501501,052
    Per hour1041,0801,02735
    Total intake2461,0802,700296400
    Per hour89390976107

    Data Confidence







    There is good confidence in the accuracy of the data reported. An athlete feels that the numbers closely reflect what they consumed despite a couple of estimations which may carry some degree of error. The majority of what was consumed is recorded to a high level of specificity (most volumes are known through the use of bottles brands quantities flavours). The numbers are very plausible and align with previous data recordings (if an athlete has collected data previously).

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