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B100 Cursa dels Nassos — 10K

Barcelona's San Silvestre on 31 December, a very fast 10K through Poblenou and the seafront where several world-class times have been set, with an international elite 5K. The 2026 edition sold out its record 13,500 bibs.

See how this race fits your training, the course profile and who else is going.

Registration on the organiser's site: cursadenassos.barcelona/en/registration-management/registration