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Overview

The Corrected Laps Plot shows the exact fuel- and evolution-corrected lap series each loaded stint’s fit consumed, one point per lap. Reach for it when a fit on the Deg Fit Plot looks off and you want to see, and adjust, the laps behind it: click any plotted lap to exclude or include it from the fit.
This plot shares its stint selection with the Deg Fit Plot. A stint dropped on either appears on both.

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What It Shows

Corrected Laps Plot with the fit-line overlay on, three stints loaded (Madrid 2026) For each loaded stint, every lap with a corrected time plots at (effective tyre life, corrected lap time). A lap with no corrected time never plots at all, an honest gap rather than a fabricated point, and so never offers the click affordance either. An existing override always clears first: click a manually excluded or included lap once to revert it to automatic, before a further click would apply a new direction. The tooltip on every point names the lap number, its corrected time, and (for auto-excluded or included points) the reason, for example “auto-excluded (over_cutoff)” or “included (sc)”. A Fit line toggle above the plot (off by default) overlays the same fitted line the Deg Fit Plot draws, using the same team-colour and dash-cycle rules, so you can see the fit move as you exclude or include laps. Clicking a fit line or empty space does nothing. Zooming. Right-drag across the plot to draw a box, and on release the chart zooms both axes to it. The drag carries on if the pointer leaves the plot or the chart, and the zoom lands at the last point inside the plot when you let go. A right-click without moving opens a small menu with Reset zoom, which returns the chart to its opening view. Left-click on a lap still toggles its exclusion, and there are no zoom sliders. The same chip row, drag target, and adj/reset affordances as the Deg Fit Plot apply here (see that page). Up to six stints can be loaded at once; a seventh drop is silently rejected.

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Data Behind It

Points are built from each driver’s latest insight:stint_deg snapshot (model_id="stint_deg", model_version="1.9.0"), the same data the Tyre Deg Table and Deg Fit Plot read, hydrated live over insight:stint_deg and by REST (api.metrics(sessionKey, "stint_deg")) on session enter and rehydrate. The manual override workflow. A click sets or clears a lap’s override in a client-side map, keyed per session. Nothing is sent to the server until you click Save on the Tyre Deg Table’s header bar. The client-side refit that redraws the fit line and this table’s *-marked rows mirrors the server’s post-correction fit maths exactly: it never re-derives the fuel or evolution correction itself (see Fuel Correction), only the fit that runs on top of the wire’s own evolution_corrected_s values. Saving. Save PUTs the full desired override set to PUT /v1/sessions/{session_key}/exclusions, each entry a (driver_number, stint_number, lap_number, direction) tuple with direction either "exclude" or "include". This is a replace-set write, not a delta: the body is the complete list of overrides you want active. The response re-reads the persisted state from the database rather than echoing the request. On success, the working set becomes the new saved baseline; on failure, your local edits are left untouched and the bar shows a “Save failed, retry” caption.

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States

“Drag a stint from the Tyre Deg Table” shows until at least one loaded stint has a plottable lap.
Never plots and never offers the click affordance; there is no way to override a lap the fit itself could never have consumed.
Toggling a lap updates the plot and the Tyre Deg Table’s *-marked row immediately, client-side, with no network call. The Tyre Deg Table’s header bar shows Adjusted until you Save or Discard.
After a successful Save the bar reads Reconciling until the next race_pace snapshot’s own echo catches up, then Canonical. See the Tyre Deg Table States section for the full three-state rule.
The widget runs on race and practice sessions, and renders a not-applicable state in qualifying, where the metric itself returns nothing. Same rule as the Tyre Deg Table.
Identical: the click-to-toggle workflow and the save endpoint behave the same regardless of whether the session is live or replayed, since both publish the same stint_deg envelopes.

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FAQ

Excluding a lap removes it from the pool the outlier cutoff is computed against. Removing a lap can only raise that threshold, so a lap that was previously over the cutoff can become valid, and vice versa is never true for an exclude.
No. An included lap is force-admitted into the fit itself, but it never feeds the fastest-lap baseline the cutoff threshold is computed from.

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Next Steps

Tyre Deg Table

See the fit numbers and save/discard your manual overrides.

Deg Fit Plot

The fitted line these corrected laps feed.

Fuel Correction

How the corrected lap times plotted here are derived.

Insights and Versioning

How model_id and model_version work across the insight engine.
Last modified on October 15, 2026