The NASCAR Xfinity Series schedule continues on Friday at 8 p.m. ET when the green flag drops on the 2021 Cook Out 250 at Martinsville Speedway. The venue has been hosting NASCAR events since 1948 but it went without an Xfinity Series race in every season but one (2006) from 1994-2019. However, the NASCAR Xfinity Series made its return to the 0.526-mile oval last fall with Harrison Burton taking the checkered flag.

Burton is listed at 5-1 in the latest 2021 Cook Out 250 odds from William Hill Sportsbook but there are six other contenders with odds of 10-1 or shorter in the NASCAR Xfinity Series at Martinsville field. That includes race favorite Justin Allgaier (7-2), standings leader Austin Cindric (4-1) and teenage phenom Ty Gibbs (7-1). Before making any 2021 NASCAR Xfinity Series at Martinsville predictions, be sure to see the latest 2021 Cook Out 250 picks from SportsLine's proven projection model

Developed by daily Fantasy pro and SportsLine predictive data engineer Mike McClure, this proprietary NASCAR prediction computer model simulates every race 10,000 times, taking into account a slew of factors including track history and recent results.

The model began the 2021 Xfinity Series schedule by nailing Austin Cindric's win at Daytona at 10-1. Last month, it hit Cindric to win against at 5-2 in the Call 811 Before You Dig 200 and then it nailed eight of the top 10 in the 2021 EchoPark 250. Anybody who followed that pick saw huge returns. 

Now, his model simulated the 2021 NASCAR Xfinity Series at Martinsville race 10,000 times. Head to SportsLine to see the complete projected leaderboard.

Top 2021 Cook Out 250 predictions 

One surprise: The model is high on Michael Annett, even though he's a massive 40-1 long shot in the latest NASCAR Xfinity Series at Martinsville odds. He's a target for anyone looking for a huge payday. After spending three seasons in the NASCAR Cup Series toiling, Annett returned to the NASCAR Xfinity Series in 2017 and has become a top-10 machine in recent years.

Annett finished 10th or better in 41 of his 66 Xfinity Series starts over the last two seasons and he's coming off top-10 finishes in two of his last three races entering Friday. Annett ran eighth at Martinsville in 2020 and also had two of his 17 career top-25 finishes in the NASCAR Cup Series at the famed short track.

And a massive shocker: Justin Allgaier, the Vegas favorite at 7-2, stumbles big time and doesn't even crack the top five. There are far better values in this field. Allgaier is up to eighth in the standings following his win in Atlanta on March 20 but the season has generally been a challenge for the 34-year-old veteran.

Allgaier finished outside the top 25 in each of his first three races and he's only recorded two top-10s in six starts this year. And even though he finished second in the Xfinity race at Martinsville last season, that's they only top-10 finish that he's managed in five career starts at Martinsville between the Xfinity Series and the NASCAR Cup Series.

How to make 2021 NASCAR Xfinity Series at Martinsville picks

The model is also targeting two other drivers with NASCAR Xfinity Series at Martinsville odds of 15-1 or longer to make a serious run at winning it all. Anyone who backs these drivers could hit it big. You can see all the NASCAR Xfinity Series picks over at SportsLine.

So who wins the 2021 Cook Out 250? And which long shots stun the NASCAR Xfinity Series? Check out the latest odds below and then visit SportsLine now to see the full projected leaderboard, all from the model that nailed Cindric's season-opening win. 

2021 Cook Out 250 odds

Justin Allgaier 7-2
Austin Cindric 4-1
A.J. Allmendinger 9-2
Harrison Burton 5-1
Ty Gibbs 7-1
Noah Gragson 10-1
Daniel Hemric 10-1
Brandon Jones 15-1
Justin Haley 15-1
Jeb Burton 30-1
Michael Annett 40-1
Myatt Snider 75-1
Brett Moffitt 75-1
Riley Herbst 75-1
Josh Berry 100-1
Ryan Sieg 150-1
Field 150-1
Alex Labbe 500-1
Brandon Brown 500-1
Jeremy Clements 500-1
Josh Williams 1000-1
Landon Cassill 1000-1
Timmy Hill 1000-1
Gray Gaulding 1000-1