Overview
- The São Paulo San Silvestre marks its 100th edition with a record field of about 55,000 runners from 44 countries on a 15 km route.
- Madrid’s San Silvestre Vallecana expects more than 40,000 participants from Concha Espina to Vallecas, with staggered starts from 16:50 and the elite race at 19:55.
- Madrid authorities plan road closures from morning to night, diversions on dozens of EMT bus lines, and recommend using Metro and Cercanías for travel.
- Local races across Spain report sell‑outs and highs: Valencia draws roughly 20,000, Asturias totals about 25,000 across events, Mérida sets a record 1,400, and Toledo fields 4,600 adults plus 600 children with bibs exhausted.
- Health and safety efforts include physiotherapists’ guidance to prevent injuries and reinforced municipal police and Protección Civil deployments in several towns.