Media Maratón San Sebastián 2026-04-12 10K; 21.097K San Sebastián (Boulevard) / Spain Visit Event Website → About This Event Location San Sebastián (Boulevard) Country Spain Date 2026-04-12 Distances 10K; 21.097K Why This Event 25th edition on flat sea-level course through Basque capital with two distance options, starting at Boulevard. More Runs in Spain View all runs in Spain