San Sebastián Rural Kutxa Half Marathon

The Medio Maratón San Sebastián, presented on the site as the San Sebastián Rural Kutxa Half Marathon, is a flat, RFEA‑listed half marathon held on the Boulevard of San Sebastián (Donostia). The event is officially certified and uses validated timing so results are recognised by the Royal Spanish Athletics Federation. The race is organised by Fly Actions and the 2026 edition is scheduled for 4 October 2026 as the fifth edition.

The race is offered as a single 21.097 kilometre distance focused exclusively on half marathon runners and includes pacemakers at multiple target times to help athletes reach goal paces. Participants receive a Dare2B technical T‑shirt and a finisher medal; there are on‑site services such as bag drop, finish‑area refreshments and nearby showers, plus options for home bib/shirt shipping for residents of Spain and France. Registration details note a maximum field of 5,000 and allow transfers until 7 September, with online tracking and official results published after validation.