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Iron Ultra Trail
105km10553km53

Iron

105.0km·4350m+
May 9
Bobija,
Serbia
source

Race Pace Calculator · GPX Analyzer · Trail Finder

Other races: Serbia

  • Gledić Ultra trejl · Jelen (ultra)October 31, 2026 · 58.0km · 2050m+
  • Gledić Ultra trejl · SrnaOctober 31, 2026 · 22.0km · 930m+
  • Winter Trail Race na Fruškoj gori · Winter Trail RaceDecember 27, 2026 · 17.0km
  • Sova Night Trail · Red RaceNovember 7, 2026 · 15.0km
  • Gledić Ultra trejl · LaneOctober 31, 2026 · 12.0km · 530m+
  • Sova Night Trail · Blue RaceNovember 7, 2026 · 10.0km

Read

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  • Hill Training for Trail Runners: Train the Descents
  • Downhill Running Muscle Damage: Why Descents Wreck Quads

Full calendar: Serbia100K trail race calendar

About Iron

Iron is the 105km ultra trail at Iron Ultra Trail 2025 (Bobija, Serbia). The race starts on May 9, 2025.

Course

The course climbs 4350m+. With 41m/km of climbing, this is a rolling, mostly runnable course. Flat-equivalent effort: 113.8 FlatKM.

Results

19 finishers completed the 2025 edition. Men's winner: Slavko Panic (Individual Neutral Athletes) in 10:23:37. Women's winner: Jelena Janežić (Individual Neutral Athletes) in 14:20:23.

This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Iron.

Other distances of Iron Ultra Trail 2025Half Iron (53.0km)

Other editions of Iron2026

Official websitetrka.rs/events/702-1-iron-ultra-trail