Great Welsh Marathon

About this event

The Great Welsh Marathon takes runners through the scenic landscapes of mid-Wales, starting from the small village of Furnace on the shores of Llyn Tegid. This road marathon follows quiet country lanes and rolling terrain through the heart of Welsh countryside. The March date means runners can expect crisp spring weather and dramatic skies typical of Wales. While the distance and terrain make it best suited to experienced runners looking for a challenging marathon experience, the route offers stunning views across valleys and hills that make the effort worthwhile. The event captures the essence of running in Wales — raw natural beauty, ever-changing weather, and a genuine community atmosphere at the finish line.