Let's condense the 2015
End of funk.
In the lap chart below, the most notable position change in Prototype class
that took place during the race was between the
#90 is among the first cars to make its last pit stop. It does so
immediately after the 14 min red flag period!
#01 has to pit under green near the end of the race which explains the
lead change. Moments after #01 leaves the pits, the #007 GTD goes off track
(not visible in these charts) and brings out a yellow.
This presumably saves #90 from having to pit again, and thus stay in the lead.
When did conditions start getting bad? Shortly after 220 mins (3 hr 40 mins)
into the race, we see that everyone's lap times sharply increase.
This is due to the beginning of the rains, often times torrential, that
would plague the rest of the race and also cause the 14 min red flag period.
The chart below shows the distribution of each driver's lap times, after yellow and pit in and out laps are removed. Each driver's fastest lap time is therefore at the bottom of the chart. Each driver is then ordered left to right according to their fastest lap time.
The majority of the drivers are in Corvette Daytona Prototypes and are
among the fastest. The rains cause
many drivers to have a large range of lap times, illustrated as tall boxes.
The drivers with short boxes presumably did not drive in the rain under green.
To find out more about
Finally, here's part 3 of the video race broadcast so you can correlate and compare the data above with what a TV viewer sees. Together, data and video gives you a greater sense of the race story.
Here's the 2015 Continental Tire 150 race condensed into 45 seconds!
The race data is customized for the point of view of the winning
Stevenson Motorsports car #6
in the Grand Sport class.
IMSA designs the GS class so they can finish typical 2.5 hour races with two
pit stops, it designs the ST class so that only one pit stops is required.
This reduces pit congestion for races run mostly under green.
Unfortunately, in 2015, this Continental race has very few green laps, so
most of the leading GS teams only make one stop. The field takes the
checkered flag under yellow.
Here's the distributions of each driver's lap times.
To find out more about
The CTSC video broadcast. One of these cars is not like the other ones.