Aerodynamics
Explainer: Engine and Aero Packages 2019-2021
Mix-and-match engine and aero packages were used from 2019-2021. Here’s what each one was and where it was used. […]
Racing
Stage Racing
Stage Wins and Starting Positions
Is it impossible to get stage wins if you start at the back of the field? A few drivers think so. Are they right? […]
Talladega Superspeedway
Does Winning the Regular-Season Championship Help Win the Playoffs?
Kyle Larson snatched the regular-season championship right out of Denny Hamlin’s hand. What — if anything — does that mean for his chances in the playoffs? […]
Green-Flag Runs
What’s Happened to Long Green-Flag Runs?
A SiriusXM Speedway caller argued that racing was worse because we no longer have long green-flag runs. What do the data say? […]
Racing
2021 NASCAR Points Race
A bar-chart race of the 2021 NASCAR Points Race showing how Denny Hamlin’s huge lead erodes under assault from Kyle Larson. […]
Racing
The Holy Grail of Racing: One Car for All Tracks
One car for all tracks means racing competitively on everything from superspeedways to road courses. NASCAR is still working on it. […]
Racing
Revisiting 2021 Early-Season Predictions
Every year, people make NASCAR predictions based on the first few races. Let’s see how well the 2021 predictions have aged. […]
Cautions
Are NASCAR Caution Lengths Increasing?
Do cautions get longer at the ends of races in the hopes of causing green-white-checkers finishes? […]
Pit Stops
Pit-Stop Costs: The Next Way to Level the Playing Field?
The NextGen car promises to level the playing field for well-funded and less-well-funded teams. But what about pit-stop costs? […]
Cautions
How Often Are There Cautions in the Last 10 Laps of a Race?
Every week, someone suggests that NASCAR manufactures cautions in the last 10 laps of a race. So I got to wondering: How often are there cautions in the last 10 laps of a race? And why? […]