The lead-o-gram bar chart showing who lead 2020 Las Vegas II, how long they led, and under what conditions they took the lead
Race Reports

2020 Las Vegas II Breakdown

2020 Las Vegas II produced the first surprise winner of the playoffs due to late-race cautions. How else was this race different than the usual Las Vegas race? Qualifying matters at Las Vegas, so the […]

grip

Grip: How NASCAR Decides If There’s Enough

Without grip — aka ‘friction’ — there is no racing. But how do you know how much grip a racetrack has? The primary tool for tuning racing grip is the tire. Goodyear produces different tire […]

Bristol Motor Speedway

How Power Steering Affects Lap Times

Brad Keselowski lost his power steering early in Stage 3 of the fall Bristol race. I wondered if we could quantify how much power steering affects lap times. Turns out we can. Below is a […]

Bristol Motor Speedway

Bristol Driver Stats: Fall

Every race in the playoffs is critical, but the elimination races, like this week’s Bristol race, are even more critical. How do drivers do in the fall races at Bristol? Here’s your Bristol Driver Stats. […]

Safety

How NASCAR Drivers Keep Cool

It’s critical for NASCAR drivers to keep their cool — mentally and physically. That’s not easy when the interior of the car can easily reach 120ºF to 130ºF. So how do NASCAR drivers keep their […]

Race Reports
Race Reports

Dover Race Report

Last weekend at Dover provides a great example of how two races at the same track and within twenty-four hours of each other, can turn out very different. Dover Lead-O-Gram I like the Lead-O-Gram because […]

Practice

Which Drivers Improve their Finishing Positions in Doubleheaders?

How has eliminating practices affected finishing positions in NASCAR races? Unfortunately, we can’t create a parallel, COVID-free universe as a control system to answer the question. However, COVID has forced NASCAR to run four weekends […]

Qualifying

Why NASCAR Quarantine Qualifying Had To Change

My return to the unique problems posed by quarantine qualifying is in part because Clint Bowyer tweeted that the pseudo-random draw was really messing him up and it wasn’t fair. I wanted to know if […]

Race Reports

Loudon Lead Changes

In reviewing the stats from Sunday’s race, the things that stood out to me all had to do with lead changes. Here’s the New Hampshire Motor Speedway race report. Lead-O-Gram The lead-o-gram show the dominance […]