Trail Race Time Predictor
mi/ftkm/m
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Festiwal Biegu Rzeźnika Bieg Rzeźnika Ultra 100km

Poland
107.2km
Distance
4,367m
Elevation D+
2020
Latest Edition

Get Your Predicted Finish Time

Use our predictor tool to estimate your finish time based on your UTMB Index and data from 37 finisher records.

Open Time Predictor
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Gear up for your 107km race

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Trail Shoes

Hoka's cushioning pays off in the final hours of an ultra. The Speedgoat is a proven choice for 100km+.

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Hydration Vest

Essential for carrying water and nutrition. Salomon ADV Skin vests are popular for good reason.

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Nutrition & Gels

Plan for 40-60g carbs per hour. Test your nutrition strategy in training - what works for others might not work for you.

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Trekking Poles

With 4,367m of climbing, poles will save your legs. Worth the investment for this much elevation.

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Headlamp

Check if your race goes into darkness. A good headlamp (200+ lumens) with reliable battery life is worth having ready.

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