Test Performance Index

Not necessarily !

Our algorithm estimates a runner's performance, rated on a scale from 0 to 1000, based on several factors:

• Distance
• Elevation change
• Minimum, average, and maximum altitude
• Terrain type (dry, muddy, snowy, forested, sandy, etc.)
• Racing conditions (temperature, weather, humidity, wind, etc.)
• Any other factors directly influencing performance

These mentioned factors can significantly affect a runner's time and performance. 

Some of these factors can be measured, some are processed through statistical analysis.

• Distance, elevation, and altitude are measurable factors. (using GPX files and ITRA's race evaluation service)
• Terrain technicality and racing conditions are not objectively measurable (what’s technical for one person may not be for another).

Our algorithm uses statistical analysis to account for these variables by evaluating the performances of all runners in a race.

It compares performances from that race to previous performances of the same runners on similar km-effort courses.
This analysis translates non-quantifiable factors into an adjustment figure, creating a performance score equivalent to a world record reset.

For each race, the algorithm identifies a trend:
“The runners on this course are on average 10% faster or slower than on the same exact course or equivalent courses in a different year.”

This adjustment mathematically reflects all the factors affecting runners' performance - and the final ITRA score obtained.

Typically, scores on an identical course from one year to the next are very similar.

However, if racing conditions significantly impact performance, the same time may not yield the same score.
This is because the runner's time is directly influenced by the unique challenges of trail running.

Example:

A technical route (limestone terrain, forest, narrow dirt path) of 20km with 1000m elevation gain.

Year N: Ideal conditions—dry ground, no wind, temperature around 15°C, good visibility.
Mr X finishes the race in 3:05:00 and scores 590.

Year N+1: Same exact course with difficult conditions—muddy, slippery terrain, continuous rain, temperature around 5°C.
Mrs Y finishes in 3:15:00 but still scores 590 because the conditions impacted performance.

In conclusion, your score is based on your time relative to the course characteristics and its own unique conditions

The following factors do not affect your score regardless of the race:

• Your race ranking
• Number of withdrawals
• Presence of elite runners
• Event's fame