[8] On February 17, 2019, Robb was confirmed to join Juncos Racing as a part of their Indy Pro 2000 roster.

[10] On July 30, 2020, Robb won his first career Indy Pro 2000 race at Mid-Ohio Sports Car Course.

[12] Robb claimed one win in a tripleheader weekend at New Jersey Motorsports Park in October and secured the championship ahead of the season finale doubleheader at St.

[14] On October 28, 2021, Andretti Autosport announced that Robb would join the team full-time for the 2022 Indy Lights season.

[19] As well as this, Robb caused a collision with his teammate Malukas at the Indianapolis Road Course, later apologising for ending the team's day on lap two.

[23][24] This ended up being Robb's final retirement of the season, though he would be disqualified from the second race at Iowa when one of the wheels dislodged itself after a pit stop.

[29] Robb competed in the NASCAR K&N Pro Series West 2018 NAPA Auto Parts Idaho 208, finishing tenth.