2017 Xfinity Series US Cellular 250 Presented by American Ethanol

Points race

Date
Track
Iowa Speedway (0.88 miles)
Laps
250 (218 miles) / actual: 254 (222 miles) [View all laps]

Stats

This race took place before 2020 and may have incomplete data.

Stats on this page
  • ARP - Average running position
  • wARP - Weighted average running position - A driver's average green flag running position, which each lap weighted in proportion to how well that lap predicts a driver's finish position over Lap Raptor's entire data set. The result is that a driver's running position in later laps are weighted higher than earlier laps. This better accounts for strategic decision making and smart driving (for example, earlier in a race you might be willing to sacrifice track position for speed or to avoid on-track incidents).
  • GF Laps - Green flag laps
  • SS - Speed score - 1000 x the ratio of the driver's 95th percentile lap to the race 95th percentile lap. A good read of a driver's top speed. [Read more]
  • GR - Gain rating - The weighted number of positions gained. The weighting is done based on the perceived difficulty of passing from a driver's current position. For example, it's for more difficult to pass from 2nd than it is from last, because the quality of car and driver is much higher at the front and there's just fewer spots to gain to begin with. The driver is assigned a score for each lap on which he or she gains a position. That score is the product of two values: the difference between the driver's starting and finishing position on that lap, and the weight of their starting position. The weight is inverse to the ordinal value of the position; something like 1/N, where N is the position. For example, 12th has a weight of 1/12 [Read more]
  • LR - Loss rating - See GR, but LR is only for laps where the driver has lost position. The weight is the inverse of their position from the back of the field, i.e. losing positions at the rear of the field results in a higher score than losing positions at the front, and thus a higher score is bad [Read more]
  • GR-LR - Net rating - The difference between the driver's GR and LR [Read more]
  • POMS - Percent of max speed - Race adjusted average speed. Assuming the fastest lap of the race is the fastest anyone could have gone on that day in that race, each lap speed as evaluated as a percentage of that lap speed and averaged to gain the driver's race adjusted average speed. This stat exists because without it, it's impossible to compare laps between a low speed track like Martinsville against a high speed track like Talladega. Note that this still isn't perfect: some tracks have greater fall off than others, and sometimes the weather changes or there's a rain delay, and that can cause distortion in POMS.
  • cPOMS - Continuously graded POMS - Like rPOMS but instead of using the fastest lap of the race, it uses the fast lap of that lap. For example, when scoring a driver's lap 30 lap speed, it uses the fastest of all drivers' lap 30 lap speeds
  • PGAE - Positions gained above expected - For any given running position, we can find the average position on the next lap. PGAE is the sum of the difference between the corresponding average to the driver's current running position and where they ended up in actuality on the next lap. For example, if a driver is running in 12th, and a driver in 12th on average is running 11.95th on the next lap, and the driver actually gains a position, he is scored a 0.95 for that lap. But if he held his 12th instead, he'd have been scored a -0.05. PGAE/100 is the driver's average score per 100 green flag laps
  • PFARP - Positions finished above running position - Like PFAE and PGAE, but comparing the driver's finish position against the average finish of a driver at their current running position at the specific point in the race. For example, if a driver is running 12th on lap 100, and the average finish for a driver running 12th on lap 100 is 13th, and the driver finishes 6th, they score +7 PFARP.
  • wPFARP - Weighted positions finished above running position - Like PFARP, but the the laps are weighted based on how well that point in the average race predicts a driver's finish position over Lap Raptor's entire data set. See wARP for more information.
  • ΔPOMS - Change in POMS - How much faster a driver went in the final segment than in the first. Last segment minus first segment.
  • 1st Seg Stats - First segment stats - The same stats as you know but only before the first caution or pit stop of the race
  • Last Seg Stats - Last segment stats - The same stats as you know but only after the last caution or pit stop of the race
Driver Car Manu. Start Finish Finish Status ARP wARP GF Laps SS GR LR GR-LR POMS cPOMS PGAE PFARP wPFARP 1st Seg. POMS Last Seg. POMS ΔPOMS ARS
Ryan Preece 20 Toyota 1 1 Running 0 0.00 0.00 0.00
Kyle Benjamin 18 Toyota 2 2 Running 0 0.00 0.00 0.00
Brian Scott 3 Chevy 11 3 Running 0 0.00 0.00 0.00
Brennan Poole 48 Chevy 8 4 Running 0 0.00 0.00 0.00
Cole Custer 00 Ford 5 5 Running 0 0.00 0.00 0.00
JJ Yeley 14 Toyota 28 6 Running 0 0.00 0.00 0.00
Daniel Hemric 21 Chevy 3 7 Running 0 0.00 0.00 0.00
Blake Koch 11 Chevy 7 8 Running 0 0.00 0.00 0.00
William Byron 9 Chevy 17 9 Running 0 0.00 0.00 0.00
Brandon Jones 33 Chevy 19 10 Running 0 0.00 0.00 0.00
Brett Moffitt 96 Chevy 21 11 Running 0 0.00 0.00 0.00
Elliott Sadler 1 Chevy 6 12 Running 0 0.00 0.00 0.00
Brendan Gaughan 62 Chevy 16 13 Running 0 0.00 0.00 0.00
Ryan Sieg 39 Chevy 25 14 Running 0 0.00 0.00 0.00
Harrison Rhodes 01 Chevy 26 15 Running 0 0.00 0.00 0.00
Ty Majeski 60 Ford 9 16 Running 0 0.00 0.00 0.00
Dakoda Armstrong 28 Toyota 20 17 Running 0 0.00 0.00 0.00
Ross Chastain 4 Chevy 22 18 Running 0 0.00 0.00 0.00
Matt Tifft 19 Toyota 10 19 Running 0 0.00 0.00 0.00
Justin Allgaier 7 Chevy 14 20 Running 0 0.00 0.00 0.00
Ryan Reed 16 Ford 18 21 Running 0 0.00 0.00 0.00
BJ McLeod 8 Chevy 31 22 Running 0 0.00 0.00 0.00
Ben Kennedy 2 Chevy 13 23 Running 0 0.00 0.00 0.00
Joey Gase 52 Chevy 30 24 Running 0 0.00 0.00 0.00
Dylan Lupton 24 Toyota 32 25 Running 0 0.00 0.00 0.00
David Starr 99 Chevy 36 26 Running 0 0.00 0.00 0.00
Tommy Joe Martins 78 Chevy 35 27 Running 0 0.00 0.00 0.00
Jeremy Clements 51 Chevy 27 28 Running 0 0.00 0.00 0.00
Brandon Brown 90 Chevy 38 29 Running 0 0.00 0.00 0.00
Ray Black Jr 07 Chevy 37 30 Running 0 0.00 0.00 0.00
Mike Harmon 74 40 31 Running 0 0.00 0.00 0.00
Stan Mullis 40 Chevy 39 32 Running 0 0.00 0.00 0.00
Michael Annett 5 Chevy 23 33 Running 0 0.00 0.00 0.00
Sam Hornish Jr 22 Ford 4 34 Accident 0 0.00 0.00 0.00
Garrett Smithley 0 Chevy 34 35 Accident 0 0.00 0.00 0.00
Tyler Reddick 42 Chevy 15 36 Running 0 0.00 0.00 0.00
Spencer Gallagher 23 Chevy 12 37 Accident 0 0.00 0.00 0.00
Morgan Shepherd 89 Chevy 33 38 Handling 0 0.00 0.00 0.00
Reed Sorenson 15 Chevy 29 39 Transmission 0 0.00 0.00 0.00
Jeff Green 93 Chevy 24 40 Vibration 0 0.00 0.00 0.00

Cautions

Start End Free Pass Reason Description
62 68 4 Unknown Stage 1 Conclusion
75 78 01 Spin #4 Spin in Turn 4
122 128 4 Unknown Stage 2 Conclusion
171 177 8 Unknown #23 Incident in Turn 4
232 237 96 Unknown #22 Incident in Turn 4
240 243 01 Unknown #0 Incident in Turn 2
248 252 4 Unknown #19, 24 and 60 Incident in Turn 1