NASCAR Xfinity Series at Martinsville odds, picks: 2021 Cook Out 250 predictions from proven model | CBS Sports Headlines NASCAR Xfinity Series at Martinsville odds, picks: 2021 Cook Out 250 predictions from proven model SportsLine simulated the 2021 Cook Out 250 10,000 times ESN FeedsThis post was originally published on … Continue reading NASCAR Xfinity Series at Martinsville odds, picks: 2021 Cook Out 250 predictions from proven model