NCCAR Track
Records

About the data

One row per driver: their personal best in that class, ranked to the top ten. A driver appears under whichever class they entered that weekend — the same person can hold entries in several. Click a name to expand every lap that driver has on record in that class, with the car each was set in.

Lap counts and percentiles. The count beside each class is every lap recorded for it here — one entry per driver per race day, across every weekend since October 2021. That full set is what the percentile under each time measures against: the share of those laps this one beats. The class record never reads 100%, because it is itself one of the laps in the set — in a 200-lap class it beats 199 of 200, or 99.5%. So a 99.5% means nothing was quicker; a 75% in a four-lap class means three drivers have ever posted a time. Read the percentile next to the lap count — in a thin class it says more about turnout than pace.

The curve is that same set of laps as a distribution — quick on the left, slow on the right. The solid red rule is the class record; the dashed grey rule is the median. Hover anywhere on it to read the lap time at that point. The left edge is the record itself and the right edge is the 95th percentile, so one very slow lap can’t squash the shape; where the record is flagged below as a probable mis-time, it is excluded and pinned to the left edge as a dashed rule instead. Classes with fewer than twelve recorded laps get the individual laps as dots — there is no distribution to estimate.

Winning laps are the second curve, and the average beside it. One race day produces one winning lap — the quickest in that class that day — but only days with three or more competitors are counted. Nearly half the race days in this archive are one- or two-car affairs, where the quickest lap records who turned up rather than what it took to win; including them would drag every average toward the pace of an empty class. Competitors are counted as distinct drivers, so a driver who ran two cars in one class on the same day is one entry, not two. On this curve the red rule is the average winning time rather than the record, and the dashed grey rule is the median; the axis labels still read fastest on the left, 95th percentile on the right. Classes whose every race day was that thin show no curve at all — there is nothing here that meets the bar.

The all-classes board at the top ranks the same laps again, ignoring class: it is the ten quickest drivers to have lapped this course, whatever they were driving. Each row carries a class badge saying where that lap was set. It is a re-ranking, not extra data, so it is left out of the “ranked entries” count above — but its lap count, percentiles and curves are computed over every recorded lap here, which is why a driver’s percentile on it differs from the one on their class board.

Where the times come from. Each is a driver’s best lap in one day’s Time Attack session, taken from the official “by class” sheet for the weekend. A weekend runs two timed sessions a day apart — printed as Saturday/Sunday, Sat TA/Sun TA, TA1/TA2 or M1./M3. depending on the season — and each is recorded here as its own lap, so a driver who ran both days appears twice for that weekend. The Track Sprint column is a shorter run on part of the circuit and is not a lap of it, so it is excluded; so is the combined column, which is only the weekend’s sessions added together.

What is left out. Anything under 1:27 is not a street-car lap on this course — it is a sprint time that drifted into a day column, a mis-time, or a car that is not street-based — and is dropped rather than shown. Slow laps are kept: a driver who has an off still set that time, and the curve’s right edge is the 95th percentile, so one of them cannot distort the shape.

Car make and model is taken from the results sheet, and the NCR badge marks the home region — visiting clubs carry their own badge in plain grey.

One course only. NCCAR run counter-clockwise with the cut-through, first used in October 2021 and the only configuration the series has run since. Earlier NCCAR events went the other way round (the April 2021 sheet says Sat: Clockwise) and are a different track for record purposes, so they are not here; neither is the March 2022 round, which was held at VIR.

provFrom a provisional sheet that has not been finalized.

?More than 8% faster than the next driver in that class. Almost certainly a mis-timed lap in the source data rather than a real record — worth checking against the session sheet before quoting it.

date?The sheet carried no event date — only the timestamp it was printed — so the weekend was inferred from that and may be off. Every lap from a season the results site does not publish carries this badge.