In 2017, Fanopoulos made his debut in the NASCAR K&N Pro Series West at Meridian Speedway, driving the No.

39 Toyota for Patriot Motorsports Group, where he started 21st and finished eight laps down in sixteenth place.

In 2019, Fanopolous joined Kart Idaho Racing to make select starts in the West Series, getting a best finish of sixth at Meridian.

[1] He also made four starts with the team in the NASCAR K&N Pro Series East, getting a best finish of eleventh at the season ending race at Dover International Speedway.

In 2021, Fanapoulos returned to the West Series with Kart Idaho Racing at Irwindale Speedway, driving the No.