Singapore T100 Triathlon and Duathlon 2027

Singapore T100 Triathlon 2027 returns to Marina Bay on Saturday 10 and Sunday 11 April 2027 as part of the international Triathlon World Tour. The programme combines high-profile professional racing with amateur triathlon and duathlon races on closed city roads, with swimming in the warm waters of Marina Bay.

2027 organiser-confirmed race formats:

• 100K T100 Triathlon: 2 km swim, 80 km bike, 18 km run, individual and two- or three-person relay teams.
• Sprint Triathlon: 750 m swim, 20 km bike, 5 km run, individual and team relay.
• Long Duathlon: run-bike-run, individual race. The detailed 2027 course distances and cutoffs are not yet finalised.
• Standard Duathlon: shorter run-bike-run, individual and team-relay options. Distances and course remain subject to confirmation.

Venue and access: organisers identify Helix Bridge as the triathlon start, F1 Pit Building as the duathlon start and expo, and Marina Bay as the principal competition area. The location pin is at the F1 Pit Building event hub, not the swim start or a specific finish gantry. Courses and transition sites may change for 2027. The organiser describes reservoir swimming, an undulating cycling course and generally flat running routes. Road restrictions are expected; plan on public transport and check the final athlete guide for access details.

Critical 2027 details still to be confirmed: Individual start times, division-to-day allocation, specific cycle/run course maps, event cutoffs, race-pack collection times and mandatory bike check-in are currently marked TBC by the organiser. This record uses a calendar-date-only anchor of 00:00 Saturday, not a midnight race start. Do not rely on the 2026 timetable and course maps appearing below the 2027 announcement.

Swimming eligibility and safety: For 2027, registrants in swim categories are asked to affirm completion of at least two open-water swim races or events since 1 January 2025. The organiser describes Marina Bay water temperatures around 25–28°C and a non-wetsuit race. Follow the technical briefing, swim cutoff criteria and any updated medical and safety regulations.

Registration: Entries are advertised through the official Singapore T100 event page. Published prices may vary by format, ticket tier and entry date, and the 2027 fee breakdown could not be verified from the publicly accessible checkout. Therefore the ARC race-category price cards are intentionally blank, not S$0. Organiser material highlights a refund schedule subject to terms; confirm it in your own checkout before paying.

Why only two exact distance cards? The 100K and Sprint Triathlon component distances are explicitly published for 2027. The long and standard duathlon events are also confirmed, but their final 2027 component distances remain unverified, so both are described here without inventing distance IDs or misrepresenting them as ordinary running races.