Once you have comparable sessions at the same track, LapBrain lines up the available measurements so you can see what changed and what stayed similar. That turns separate debriefs into a history you can use before the next track day.

When it unlocks

Cross-session comparison requires at least two compatible sessions at the same track. LapBrain orders them by when you rode, and the comparison appears once both are available. You'll see a "NEW" badge the first time it's available.

What you'll see

App screenshot: Cross-session progress
In LapBrain
The debrief shows how your current session compares to previous sessions, with coaching thread status and corner-by-corner progress.

The cross-session view shows:

  • Lap time trend: your best lap times across sessions in chronological order
  • Corner-by-corner comparison: where pairwise measurements and time deltas changed
  • Coaching threadCoaching threadAn issue followed across comparable sessions, such as entry-speed spread at T5 or section-time spread through the esses. history: when a trackable issue appeared, how its measurement changed, and its current status
tip

Read the lap-time total beside the corner deltas. One lap pair may gain time in one region and lose it elsewhere; the selected laps and channels show where that trade occurred.

Coaching threads

A Coaching threadCoaching threadAn issue followed across comparable sessions, such as entry-speed spread at T5 or section-time spread through the esses. starts when LapBrain identifies an issue it tracks across sessions. If Session 1 shows entry-speed spread at T3, each later compatible session that checks entry-speed spread there extends the same thread.

Thread states:

  • Active: the issue appears in the latest checked session
  • Intermittent: the issue is absent from one or two checked sessions after appearing earlier
  • Mastered: the issue is absent from three consecutive checked sessions

An Active thread may also show an Improving trend when its measurement moves toward the reference.

What to do next

  1. Inspect corner deltas beside lap times: use them to locate where the selected laps differ.
  2. Check your coaching threads: read the latest status and measurement for the issue you carried into the session.
  3. Add comparable sessions when you have them: a session extends a thread when LapBrain checks the same issue again.
  4. Explore Coaching Threads for a deeper look at how LapBrain tracks your progress over time.