The top speeds all came from the first 20-minute session with*McDowell's average lap speed of 169.443 mph leading all 36 participants.McDowell announced earlier this week he was leaving Front Row Motorsports at the end of the 2024 season to join Spire Motorsports in 2025.Ty Gibbs was second fastest overall (168.566 mph) and Chris Buescher was third (168.457 mph).Denny Hamlin was fastest in the ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/michael-mcdowell-fastest-in-saturdays-darlington-cup-practice-/10609742/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

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