Marathon Swims VIRTUAl Challenge is your chance to take on an iconic marathon swimming distance in your own time.

Choose from the Marathon 10k, the Ultra Marathon 25k or the Ultra Marathon 50k.

Swim as often as you'd like to achieve your distance challenge. Complete your challenge over 30 days between 1 Nov and 30 Nov 2025. Send us your results and we'll send your exclusive Marathon Swims VIRTUAL medal in the post (if purchased).

Marathon Swims - swimming now has its own marathon

Event details and schedule

This is a virtual challenge with no event to attend. Complete the challenge in your own time, at your chosen pool or open water. Swim your challenge in one go or over multiple days between 1 Nov and midnight 30 Nov 2025. Please follow all venue guidelines and rules. Record your swim(s) and when your challenge distance is completed submit your results.

Please bring with you a water bottle (filled) and any nutitition you may need for your challenge. 

Please follow all pool guidelines on safety and ettiquette.

We look forward to congratulating you on becoming a marathon swimmer!