Briscoe started racing in 2001 when he competed in quarter midgets, winning his heat race and feature. Five years later, he returned to racing, driving 410 sprint cars at the age of 13. That year, he recorded 17 top-ten finishes and a win at the final race of the season; he became the youngest driver to win a 410 sprint car race, beating NASCAR champion Jeff Gordon's record by one year despite racing with an engine from 1993. In 2013, Briscoe applied for the PeakStock Car Dream Challenge, a contest rewarding the winner with a ride at Michael Waltrip Racing. He finished second behind Patrick Staropoli in the challenge. Later in the year, he made his NASCAR K&N Pro Series West debut at NAPA Speedway where he finished eighth. He ran two more races in the series that season, finishing 13th and 27th at Kern County Raceway Park and Phoenix International Raceway, respectively. In 2015, Briscoe was contacted by friend and driver Christopher Bell regarding a contract with Roush Fenway Racing, which resulted in a test session with ARCA Racing Series team Cunningham Motorsports. After two tests at Mobile International Speedway and Fairgrounds Speedway, he made his ARCA debut at Lucas Oil Raceway at Indianapolis where he finished tenth. In his second ARCA start at Salem Speedway, he qualified seventh and later finished fifth. In 2016, Briscoe ran full-time in the ARCA Racing Series, driving the No. 77 car for Cunningham Motorsports. He won the 2016 championship by 535 points over runner-up Tom Hessert.
In 2018, Briscoe ran a part-time schedule in the NASCAR Xfinity Series. Briscoe ran races in both the No. 60 Ford of Roush Fenway Racing and the No. 98 Ford of Stewart Haas Racing. Later that year, Briscoe won the inaugural Xfinity race on the Charlotte Roval race after holding off Justin Marks and Austin Cindric. Briscoe committed to a full-time Xfinity schedule in SHR's No. 98 in 2019. In July, Briscoe earned his second career Xfinity Series win at Iowa Speedway. He qualified for the 2019 NASCAR Xfinity Series Playoffs, on the back of posting 10 straight top 10 finishes. Briscoe finished the 2019 season fifth in points after finishing third at Homestead. Early in the 2020 NASCAR Xfinity Series season, Briscoe won the rain-delayed Boyd Gaming 300 at Las Vegas Motor Speedway; he led 27 of 50 laps before weather forced the remainder of the race to be postponed, followed by 62 laps on Sunday for a race-high 89 laps led en route to the victory. At Darlington, Briscoe earned his fourth career Xfinity Series win after holding off Kyle Busch.
Personal life
Briscoe's father Kevin and grandfather Richard are both involved in sprint car racing, Kevin being a former Truck Series driver and a five-time track champion at Tri-State Speedway and Bloomington Speedway, while Richard has worked as a car owner for drivers like Rich Vogler and Dave Blaney. He met and became friends with fellow driver Christopher Bell on iRacing. Briscoe is an active user of Reddit and frequently interacts with fans on the NASCAR subreddit. He is married to his wife Marissa. They were expecting their first child in 2020, but Marissa suffered a miscarriage in May of that year. Briscoe is a Christian.
Motorsports career results
NASCAR
Xfinity Series
Gander Outdoors Truck Series
K&N Pro Series West
ARCA Racing Series
Season still in progress Ineligible for series points