Half Marathon races near Diadema

Diadema Training Notes

Diadema hosts 7 Half Marathon races in 2026 within 80 km of the city centre — upcoming dates, recurring series, and other races nearby, all in one place.

Locals in Diadema keep the running practical, because the brief does not pin down named in-city routes. Parque do Povo gives runners a known São Paulo-side reference when they want controlled laps, steady Z2, or sharper intervals. São Paulo FC gives the scene its loudest club link through Tricolor Run Noturna, with the start and finish at MorumBIS. Nike SP City Marathon, RUN 21k - MEIA DA ESTRADA VELHA 2026 - SUNSET, Meia de Sampa, and São Silvestre give locals proper anchor-event targets.

Cyclists in Diadema get the bigger playground south, where Serra do Mar does the sorting. Cycling from Diadema to Santos runs 675.2 km and stacks 13,254 m of ascent with 14,031 m of descent, so it feels more like a gran fondo project than a casual spin. Estrada da Manutenção, Márcia Prado, Rota Márcia Prado - Trajeto Oficial, DBM - Caminho do Mar, and Sampa-Santos keep the route list deep. Locals expect a mix of surfaces, with plenty of quiet roads and a good dose of both paved and unpaved sections. Desafio Energia Petrobras - Bike - São Paulo 2026 gives the calendar a bike anchor.

The season details in the brief stay thin, so locals build around workload instead of chasing a perfect month. Summer specifics are not listed, but runners can still use 5 km, 21 km, and marathon goals while cyclists keep base miles pointed toward Santos. Winter specifics are not listed either, but the riding changes once Serra do Mar climbs become the day’s main filter. The route south reaches 1,115 m, and the reward is a big descent as you approach sea level in Santos.