Three Hearts Marathon
Race Day Weather
Comfortable temps, chance of rain
Mild 58°F temps at gun time mean comfortable early miles without overheating risk. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. Moderate humidity at 67% is worth noting for effort level, especially in later miles.
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Race Info
The Three Hearts Marathon (Maraton treh src) has run in Radenci, Slovenia since 1981. The race starts and finishes at the Zdravilišče Radenci spa resort and follows a single loop that crosses into Bad Radkersburg, Austria before returning to Slovenia. It has served as the Slovenian national marathon championship in even-numbered years since 1998, sharing that role with the Ljubljana Marathon. The men's course record is 2:15:26, set by Kenya's David Biwott in 2006; the women's record is 2:38:10, set by Kenya's Sheila Chebet in 2024.
