IRONMAN 70.3 Belgrade 2027
A 70.3 in Belgrade with a swim in Sava Lake, a two-loop bike on straight city streets and a fast, flat run around Ada Lake.
49 weeks to race day: base season
Plenty of runway. This far out, the win is a boring, consistent base rhythm: aerobic volume, strength, technique. The structured block starts closer in; what you do now decides how high it can climb.
Building for this one? 70.3 training plan covers the sessions, the weekly shape and how the block is paced. The R.A.C.E. Framework explains why it is built that way.
Build my complete road.
Commit to the date and the work gets a shape: your countdown starts, the emails arrive in step with your build, and the app anchors a recovery-led block so the final week lands exactly on race day.
One confirmation email, then the road begins. Registering for the race itself stays with the organiser.
“The bike is two loops on straight city streets and the organiser calls the run fast and flat, so even pacing and clean transitions are likely to matter most.”
The race
The course
Swim in Sava Lake. Wetsuits are legal at 24.5°C (76.1°F) or colder, up to 5 mm thick, and prohibited above that.
Two loops along straight city streets of the capital.
A run the organiser describes as fast and flat, around Ada Lake.
Not yet confirmed for this edition: bike elevation gain, cut-off times, aid station spacing, water temperature history, course maps (not checked against official GPX), run lap count. We publish these only once they are on the official course page, so check there before you pace off anything here.
Course details verified against the official IRONMAN 70.3 Belgrade course page on 4 October 2026. Courses change; the official page is always the last word.
Questions, answered
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Read before you race
Half Ironman Recovery Time: A Practical Return
How Much Harder Is a Full IRONMAN Than a 70.3?
IRONMAN 70.3 Tallinn Training Guide
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This listing is for information only. Unbroken is not affiliated with, endorsed by, or sponsored by IRONMAN 70.3 Belgrade or its organiser. Details are based on publicly available information; names are used descriptively to identify the event. For accurate, up-to-date information and entry, always use the official event website.