Kalendar trka
Everything about running in Srbija
Kalendar trka is a community-focused running platform for Serbia. It helps runners discover road and trail races, compare practical details, and keep the local race calendar easier to navigate.
Race of the week
4. Jablanik Trail
Jablanik Trail is an UTMB Index race held in Valjevo, Serbia. The race is 34 kilometers long with a total ascent of 1837 meters, offering a challenging and attractive ter…
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49th Fruška Gora Trail
Trail
Fruškogorski maraton
Trail
Staza snage 2026
Trail
Šumadija Trejl Staza Snage (Gledićke Planine)
Trail
Takovski grm
Road race
Iron Ultra Trail
Trail
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Tools for your next race
Measure Your Route
Measure a route idea and get a quick distance estimate before you head out.
Training Plans
Find training plans for different goals, levels, and race distances to shape your next training block.
Estimate Your Finish Time
Estimate a realistic finish time from earlier results and compare different goal scenarios.
Pace Converter
Convert pace, speed, and finish time across common race distances while planning training.
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