Why does an imported run show implausible values (pace too fast, wrong splits)?

Every now and then a run shows up in Trait with values that can't be right: a kilometer in 2:30 min, a pace that differs noticeably from your watch, or odd splits. Here's why that happens.

What Trait gets from your watch

At their core, watches and third-party providers only deliver raw data to Trait: GPS coordinates and a timestamp for each data point. Trait calculates speed, kilometer splits and much more itself. There are some typical stumbling blocks along the way:

• Varying resolution: Sometimes there are 2 seconds between two data points, sometimes 0.2 seconds – and every so often points are missing entirely.
• Missing pauses: Often the data doesn't include the fact that you stopped at a traffic light. That leaves a gap between gross and net time that Trait has to detect on its own. This can lead to a different duration or pace.
• GPS jumps: If your position jumps briefly, it looks like a sprint mathematically – resulting in unrealistically fast splits or even incorrect personal bests.

Trait does its best to interpret this data sensibly. Even so, there will occasionally be sessions with implausible values. In most cases this is a problem with the delivered data, not a bug in the app.

What you can do

• Correct distance and duration: Tap the run in the Calendar → edit. This works for all running activities.
• Incorrect personal best: Honestly, the personal bests list can't be corrected at the moment – a wrongly detected best time stays there. If what's really bothering you is an unsuitable forecast, you can enter a real, current performance: Stats → Feelgood Pace tile → tap “enter current performance” at the bottom under the forecasts. This improves the forecast, but doesn't change the personal bests list.
• Don't worry: A single session with strange values won't mess up your plan or your paces. Your paces are derived from your Feelgood Pace, your checkout ratings, the heart rate analysis and the assessment run – not from individual splits or personal bests.