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Frogman Corps: Week 2 | Boat Carry

The Frogmen would regularly march as a unit with their boats on their shoulders. This challenge is to simulate the boat carry, requiring the participant to march 5km carrying a weight on their shoulders.

  • Brief


  • 5km Weighted Speed March carried on shoulder

    Cover a 5km distance for time whilst carrying a weight on your shoulder. 

    Advanced: 20kg

    Intermediate: 15kg

    Moderate: 10kg

    Novice: 5kg


  • Use a weighted gym-sandbag, weighted vest or weighted rucksack

    Feel free to use whatever weight you like, however, we recommend the options above. Something with good padding is also recommended.

  • The weight must be carried on your shoulder

    If you find one shoulder starting to fatigue, you are permitted to shift the weight to the alternate shoulder. You cannot drag the weight or use the straps. The full weight of the object must be placed on one shoulder.

  • You must start and finish in the same location

    As this is a time trial, to stop people just running down a hill to get the best time, you must start and finish your run in the same location. You can achieve this by running a single or multiple looped circuits or run out to half way and turn around to return to the start. Plan you run before you attempt to make sure you pick a suitable route.

  • 2.5% Treadmill gradient

    It is preferred that you attempt this challenge outside, however, if you are unable to do so and must use a treadmill, the gradient of the treadmill must be set at 2.5%.


You must submit two pieces of evidence for this series:

  • Fitness Tracker Activity

    Eg: Strava, Garmin, Fitbit...

  • Photograph if weight on scales

    To evidence the weight of your carried object, you must take submit a photo of the weight on some scales. 


Completion Points












28m 00s

29m 30s

31m 00s

32m 30s

34m 00s

35m 30s

37m 00s

38m 30s

40m 00s

41m 30s

43m 00s

44m 30s

46m 00s

47m 30s

49m 00s

50m 30s

52m 00s

53m 30s

55m 00s

56m 30s























Before submitting, please make sure you have ready:

  • Challenge Entry Order Number

    Found on your Challenge Entry purchase confirmation email.

  • Weblink to Evidence

    Unfortunately, we do not yet have the technology to allow you to directly upload your evidence, so in order for you to submit your evidence we require you to submit a weblink to such evidence. There are a number of ways to get a weblink to your evidence, you can either:

    • Upload your evidence to our Team Rokman Facebook Group
    • Share a direct weblink to your fitness tracker activity
    • Share a link to download a screenshot of your evidence via a file-sharing website such as

Deadline: 7-Days

It is highly recommended that you complete the challenge within 7-days of its issue, however, we will accept submissions right up until 7-days after the end of the series. We will not accept submissions after this time.

Health & safety

This is a brutal physical challenge for which you are responsible for your own health and safety. It is imperative that you read through, understand and follow our health and safety guidelines before you embark on your challenge attempt. This list is only a guide. It is your responsibility to take the appropriate health and safety measures during the attempt of a challenge.

  • Consult a physician

    You should consult a physician before you begin any strenuous exercise program, such as the one described on this website, especially if you have or suspect that you may have heart disease, high blood pressure, diabetes, or any other adverse medical conditions. If you feel faint or dizzy at any time while performing any challenges or exercise, stop immediately and seek medical evaluation.  

  • Plan your route

    On running challenges, we strongly recommend planning your route with online running route planners. This leaves out the guesswork, allowing you to know the distance and elevation before you embark on the challenge.

  • Let others know

    When performing any challenge, we strongly recommend you let a friend or family member know what you are doing and where and when you are doing it and what time you are expected to return incase you face any difficulty.

  • Carry a mobile phone

    We strongly advice that you carry with you a fully charged mobile phone and back up battery if possible.

  • Bad weather

    Keep an eye on the weather forecast.

  • Nutrition and hydration

    You are responsible for your own nutrition and hydration as this is a self-disciplined event. Please ensure you have enough fluids and food or adequate access to these. Click here to read our guide on fuelling correctly for this challenge.

Help & Support

If you have any questions or queries please do not hesitate to get in touch.

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