Chennai Metro Rail (CMRL) will run special train services for the 14th Freshworks Marathon on January 4, 2026. Trains will operate every 15 minutes on both phase I corridors between 3 a.m. and 5 a.m. Inter-corridor services will be suspended during this time. Regular Sunday services resume after 5 a.m. Participants can use their marathon QR code tickets for travel, and vehicle parking will be free.