Istria 100 by UTMB - 110K course and race-day weather
- Buzet, Croatia
- 111 km
- 4,200 m D+
- 7 aid stations
Analyzing route...
Istria 110K course, section by section
The Istria 110K course runs 111.0 km with 4,200 m of climbing and 4,272 m of descent - 38 m of climbing per kilometre. It tops out at 1,017 m, and its lowest point on the GPX is 3 m. 33% of the distance climbs at more than 3%, 33% descends at more than 3%, and the remaining 34% is flat or rolling.
The organiser's 9 checkpoints split the course into 8 sections. The table gives each leg's own climb, descent, average grade and high point, measured on the official GPX.
| Section | Km | Distance | D+ | D- | Avg grade | High point |
|---|---|---|---|---|---|---|
| Start - Buzet → Prapoće | 0.0-14.8 | 14.8 km | +705 m | -279 m | +2.9% | 666 m |
| Prapoće → Trstenik | 14.8-26.5 | 11.7 km | +638 m | -455 m | +1.6% | 1,017 m |
| Trstenik → Buzet | 26.5-41.9 | 15.5 km | +440 m | -1,039 m | -3.9% | 1,000 m |
| Buzet → Butoniga | 41.9-58.6 | 16.7 km | +776 m | -837 m | -0.4% | 391 m |
| Butoniga → Livade | 58.6-74.1 | 15.5 km | +680 m | -679 m | 0.0% | 409 m |
| Livade → Grožnjan | 74.1-89.9 | 15.7 km | +717 m | -448 m | +1.7% | 380 m |
| Grožnjan → Buje | 89.9-96.8 | 7.0 km | +68 m | -180 m | -1.6% | 297 m |
| Buje → Umag (Finish) | 96.8-111.0 | 14.2 km | +86 m | -264 m | -1.3% | 215 m |
The climbs that shape the race
The track holds 10 major climbs and 10 major descents. The biggest climb runs from km 2 to km 12: +639 m over 10.4 km at an average of 5.8%. The steepest sustained climb averages 13.6% over 2.8 km from km 60, with pitches of 23.9%. One major climb starts in the last 30% of the course. The longest descent drops 264 m over 13.4 km from km 97 (Buje to Umag (Finish)), at an average of 1.6%.
Distance, total climb and high point are the organiser's. Each section's climb, descent, grade and high point, the low point and the named climbs are measured on the official GPX with the same method as the interactive profile, so the sections can add up to a slightly different total.