The Garmin Run Marathon Series Singapore 2026 has officially announced its race routes, marking the third edition of the event. The 21.1km and 10km routes will be revealed through a walkthrough on Garmin Singapore's social media platforms. The marathon will start at Marina Barrage, a key landmark in Singapore, and will take participants across the city's most iconic waterfront areas. The event is scheduled for Sunday, 25 October 2026, and is expected to attract thousands of runners. The route details provide insight into the challenging and scenic paths participants will encounter during the race.