South India's largest city marathon, an AIMS-certified, World-Athletics-approved road race through Chennai held annually each January, offering distances from 10K to a full marathon plus a 32K 'Twenty Miler'.
Athleo doesn’t sell entries — we just help you find the race. The organiser sets the expo details and sometimes changes them late; check their page before you travel.
Register on Chennai Runners (endorsed by the Sports Development Authority of Tamil Nadu); current title sponsor is Freshworks, so the event is branded 'Freshworks Chennai Marathon' in 2026/2027 materials’s site ↗