BYD Singapore International Marathon 2026

Singapore's national running weekend returns 4–6 December 2026 as the BYD Singapore International Marathon presented by adidas, the 44th edition of this major international road-racing festival. The main adult road races begin at the F1 Pit Building and finish at National Stadium. The three-day programme spans the marathon, half marathon, 10K, 5K, a four-member marathon Crew Challenge, national championship fields and children's races.

Current registration status (checked 23 October 2026)

Important correction: The original 30 September entry deadline was extended to 31 October 2026 at 23:59 Singapore time for the 10K, 5K and Kids Dash, subject to capacity. The organiser's current category and fees pages now mark the BYD Marathon, adidas Half Marathon and Crew Challenge as SOLD OUT for both local and international entries. One generic FAQ still mentions limited international places, so use the live official checkout for the latest status rather than assuming a race is available. The structured deadline on this multi-category listing refers to the shorter categories only. Registration prices vary for local versus international entrants, as shown in the race-category cards.

Race-day schedule and practical notes

• Friday 4 December: Kids Dash at Great Eastern Promenade from 07:30, with separate 1.6K competitive/non-competitive races and 600 m waves; 10K at 20:30 (2 h 30 m cut-off), 5K at 21:30 (1 h 15 m cut-off).
• Saturday 5 December: Half marathon at 04:30, with a 3 h 45 m cut-off.
• Sunday 6 December: Marathon and Crew Challenge at 04:30, with a 7-hour marathon cut-off. In the Crew Challenge, four people each race the full marathon distance and their individual times are combined; this is not a relay.
• The 600 m and 1.6K children's races are described here, although ARC's distance filters do not represent those exact distances.

Heat, humidity and early-morning road closures are important considerations for visitors. Check the official race-day transport instructions, collection notices, road restrictions and final course plans before travel.

The organiser states that registrations are generally non-refundable and non-transferable. Only participants who bought the optional RunFlex add-on during registration may request its advertised cancellation benefit, subject to the published deadline and conditions.

Primary sources: Race weekend and current registration updates, official category fees and availability, and Kids Dash schedule.