[1] Growing up in Connecticut, Gravel started his racing career in quarter midgets before moving up to Legends cars on asphalt and then to dirt micro-sprints.

[2] Gravel started making sporadic World of Outlaws appearances in 2008; he eventually won the series' Rookie of the Year award in 2013.

[5] After the COVID-19 pandemic temporarily stopped the WoO season, Gravel won the tour's first race back, held with no fans at Knoxville on May 8.

[9] On January 10, 2020, Gravel announced a six-race slate in the NASCAR Gander RV & Outdoors Truck Series, driving for GMS Racing.

[10] As part of the deal, Gravel would also run the 2020 ARCA Menards Series season-opener at Daytona International Speedway with GMS affiliate team KBR Development.