EVENT
CALENDAR.
Curated directory of the world's most significant road and trail races. Course breakdowns, registration deadlines, and precision training plans for every start line.
BOSTON MARATHON
TCS LONDON MARATHON
BMW BERLIN MARATHON
BANK OF AMERICA CHICAGO MARATHON
TCS NEW YORK CITY MARATHON
TOKYO MARATHON
ULTRA-TRAIL DU MONT-BLANC
COMRADES MARATHON
SPARTATHLON
BADWATER 135
WESTERN STATES ENDURANCE RUN
LEADVILLE TRAIL 100
OLD MUTUAL TWO OCEANS MARATHON
TATA MUMBAI MARATHON
HYDERABAD MARATHON
LADAKH MARATHON
VEDANTA DELHI HALF MARATHON
THE BORDER
RED STONE ULTRA
WHITE SAND ULTRA
THE BUDDHA TRAILS
BIR RUNNING FESTIVAL
GREAT HIMALAYAN RUNNING FESTIVAL
GOA ULTRA
SOLANG SKYULTRA
HELL 480 CHALLENGE
BENGALURU ULTRA
KAVERI TRAIL MARATHON
INDIAN
RACES.
India's running calendar has matured into one of the world's most diverse — from the iconic Tata Mumbai Marathon (TMM) to the high-altitude Ladakh Marathon, from the urban grit of the Vedanta Delhi Half (VDHM) to the legendary Comrades Marathon route guides for Indian runners. STRIDD's plan generator supports training for every major Indian race, calibrated to monsoon conditions, heat, humidity, and altitude where relevant.
Tata Mumbai Marathon
India's flagship marathon. Flat coastal route, cool morning start. Train 16-20 weeks; STRIDD's Daniels VDOT or Lydiard plans suit most TMM debutants and SCMM-style timed runners.
Vedanta Delhi Half Marathon
India's largest half-marathon by participation. Open category and timed elite. Recreational runners benefit from a 14-week plan with a strong aerobic base — Lydiard or Norwegian double-threshold suits sub-2:00 chasers.
TCS World 10K Bengaluru
IAAF Gold Label 10K. Hot summer race — train at dawn through Apr/May. 10-12 week Daniels VDOT plan delivers reliable PBs.
Ladakh Marathon
World's highest marathon at 3,500m+. Requires altitude-specific training, base mileage, and at least 2 weeks of acclimatisation. Lydiard base + Maffetone HR-cap training is ideal preparation.
The Border
Hell Race's flagship desert 100-miler. Jaisalmer to Longewala, tribute to the 1971 Battle. Flat, cool desert night running — Lydiard base + back-to-back long runs.
GHRF + Hell Ultra
Multi-race Himalayan festival. Hell Ultra runs the full Manali-Leh highway at altitude. Demands a 20-24 week Lydiard base + altitude acclimatisation.
Solang SkyUltra
Hell Race sky-ultra: technical single-track, 7,350m vert on the 100K, consistently high DNF rate. Sky-running training required.
The Buddha Trails
Hell Race Eastern Himalayan trail: Sandakphu, Kanchenjunga views, rhododendron forest. Trail strength + altitude prep.
Bir Running Festival
Hell Race half + trail festival in the paragliding capital. Hanumangarh Peak climb. Good entry point to mountain running.
Red Stone Ultra
Hell Race Delhi NCR trail ultra: Aravalli mining trenches. Only trail ultra you can train for on the exact course.
White Sand Ultra
Hell Race sand-dune ultra. Sand running biomechanics — 30-50% more effort per km than road.
Goa Ultra
Hell Race monsoon-season trail ultra. Coastal + Western Ghats forest. Demands heat + humidity + slippery-rock training.
Goa River Marathon
Coastal flat course with tropical humidity. 14-16 week Pfitzinger or Daniels plan recommended; emphasise heat acclimatisation and electrolyte protocols.
Auroville Marathon
Forest trails and biodiversity reserve. Cooler February conditions. Trail-specific cadence work + Lydiard hill phase produces strong AHM finishes.
Indian race calendars cluster Oct-Feb (the cool-weather window). If you're training through Apr-Sep, build aerobic base and threshold work in the early-morning slot (5-6 AM), and shift long runs to 4 AM in peak summer. STRIDD's plans automatically adjust intensity targets for the conditions you train in.