Matt Campbell returns to Porsche Penske Motorsport (PPM) in 2024, driving the No. 5 Porsche LMDh in the FIA World Endurance Championship (WEC), alongside co-drivers Michael Christensen and Frederic Makowiecki. Campbell will transition back to WEC racing after competing last season in the IMSA WeatherTech SportsCar Championship with veteran racer Felipe Nasr.

Campbell contested his debut season in the Porsche Mobil 1 Supercup in 2017. It marked Campbell's first year where he competed in European motorsport. Before 2017, Campbell, a native of Warwick (Queensland), Australia, raced single-seaters and contested the national Porsche one-make cups in his homeland.

Beginning in 2018, Campbell raced three WEC seasons for Dempsey Proton Racing. The team won the GTE-Am class of the 24 Hours of Le Mans in 2019. Following a WEC GTE-Am class victory at the 12 Hours of Sebring in 2019, Campbell was named a Porsche works driver

Campbell made his IMSA WeatherTech SportsCar Championship debut during the 2019 season. Driving a Porsche 911 GT3 R, Campbell competed in the 24 Hours of Daytona, and also made starts in series races at Lime Rock and Road America. He earned his first IMSA class victory with a GTD win in 2019 at Road America.

In 2020, Campbell raced in the IMSA season-opening 24 Hours of Daytona and the Petit Le Mans season finale at Road Atlanta. He was part of the GTLM pole-winning effort at the 24 Hours of Daytona and the class-winning finish at Petit Le Mans to close out the season.