Trail Finish-Time Calculator

Estimate your finish time on a real trail course — adjusted for elevation, with splits and per-checkpoint nutrition.

Estimate finish time

Estimation based on your ITRA Performance Index, factoring in elevation gain, altitude, and surface.

We analyze the elevation profile of the uploaded GPX track for the upcoming race.
Using an ML algorithm, we calculate the Technical Difficulty Index (TDI) of the specific route.
Based on these metrics, the actual distance with elevation gain is converted into an equivalent length in Flat Kilometers (FlatKM).
The estimated finish time is calculated based on your ITRA PI and the resulting flat equivalent of the course.

UTMB MCC

37.8km

58.8 FlatKM

Set your ITRA PI

Estimated Finish

5:27:43

ITRA PI

5gels40g/h

4.1liters0.75l/h

11tabs400mg/h

Plan checkpoint nutrition

How many carbs, water, and electrolytes are needed between checkpoints.

The overall race route is divided into control segments.
For each section, the projected transit time is calculated considering its individual difficulty.
Based on this time, we calculate the required energy expenditure, fluid volume, and electrolytes.
We highlight the longest segment where there is a risk of running out of water supplies.

UTMB MCC · PLAN

ITRA 565·5:28

AID

Distance

Time

Gain

Loss

Gels

Water

Salts

7.6km/7.6km

1:07/1:07

1071m+

46m−

1.0×40g(41g)

0.8L

2(400mg)

16.9km/9.3km

2:57/1:50

1116m+

439m−

1.7×40g(67g)

1.4L

4(800mg)

27.8km/10.9km

4:09/1:13

226m+

1155m−

1.1×40g(44g)

0.9L

2(400mg)

32.8km/5.0km

4:47/0:38

260m+

293m−

0.6×40g(23g)

0.5L

1(255mg)

37.8km/5.0km

5:28/0:40

20m+

222m−

0.6×40g(25g)

0.5L

1(268mg)

AID

Distance

Time

Gels

Water

Salts

Calculate for my race — import my GPX

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