Why endurance events like marathons should have weight divisions for heavier runners

Please complete security verification

This request seems a bit unusual, so we need to confirm that you’re human. Please press and hold the button until it turns completely green. Thank you for your cooperation!

If you believe this is an error, please contact our support team.

72.167.40.144 : 33233540-28f1-4a8f-92c2-122389c6