[10] His win would not be too far away, as he took his first victory in the series during the next round at Monza, defended from Lorenzo Colombo and duly taking the lead of the championship.

[14][15] However, a double retirement at the Hockenheimring left his championship chances dented and trailing leader and fellow Renault junior Max Fewtrell by 36.5 points heading into the final round.

[23] In January 2019, the French outfit confirmed Lundgaard would race with them, alongside Eurocup rival Max Fewtrell and David Beckmann.

[26] He passed polesitter Robert Shwartzman at the start and never looked back to win the race, but was demoted five seconds for exceeding the virtual safety car delta.

The next two rounds were poor for Lundgaard, he retired in the first race at Le Castellet due to a broken suspension, but recovered to 15th the next day.

[42][43] Lundgaard reunited with ART to contest the Macau Grand Prix, which saw him finish third in the qualification race[44] and fourth in the main event.

[45][46] In November 2019, it was announced Lundgaard would partake in the season finale at Yas Marina with Trident, replacing Ralph Boschung.

[49] Lundgaard missed the whole of pre-season testing at the Bahrain International Circuit due to an outbreak of COVID-19 in his hotel, therefore he was forced to be quarantined for several days.

[52] For the first round at the Red Bull Ring, Lundgaard qualified fourth and finished in the same position, taking advantage of a car issue for Guanyu Zhou and a mistake for Mick Schumacher late in the race.

He put a small overtaking masterclass in early wet part of the feature race, moving up to fourth at one point, but he would eventually finish sixth.

Nikita Mazepin passed him at the start but eventually moved back into third after dispatching polesitter Felipe Drugovich.

A spin for Ilott mid-race saw Lundgaard pit for tyres, he charged back to second late in the race but ran out of time to catch eventual winner Dan Ticktum.

[67][68] He led majority of the race until the safety car restart on lap 31 of 33, where Lundgaard was passed by both Hitech drivers on fresher tyres.

Heading into the final two rounds of the season, Lundgaard sat fourth in the standings, 46 points behind leader Schumacher.

In the second sprint race, Lundgaard slipped from fifth to seventh, and then later clipped the back of Lirim Zendeli whilst trying to overtaking to him and causing the German driver a puncture.

In the feature race, Lundgaard finished tenth, but was once again denied points again due to speeding in the pit lane and earning himself a time penalty which dropped him to 12th.

[95][96] More bad luck for Lundgaard, as he stalled on the formation lap, and was consigned to start from the pit lane and recovered to 13th.

He made up positions during a late safety car and finished 11th, before being promoted to tenth due to a disqualification from Richard Verschoor.

[105] In a highly entertaining race in the first sprint, Lundgaard was involved in a tense battle with teammate Pourchaire, Piastri and Jehan Daruvala to eventually finish seventh.

[107] In the second sprint race, Lundgaard made up two places from fifth to third at the start and fought for the lead, but was given a 5-second time penalty for cutting the corner whilst fighting Bent Viscaal.

[119] In July 2021, Lundgaard tested an IndyCar with Rahal Letterman Lanigan Racing at Barber Motorsports Park.

[120] A month later, he joined the team for his IndyCar debut at the 2021 Big Machine Spiked Coolers Grand Prix at Indianapolis Motor Speedway.

[122][123][124] On 20 October 2021, it was announced that Lundgaard would join Rahal Letterman Lanigan Racing on a multi-year IndyCar deal, starting from the 2022 season.

[126] Lundgaard made his full time IndyCar debut at the 2022 Firestone Grand Prix of St. Petersburg, qualifying in 15th.

[128][129] The next race at the Texas Motor Speedway saw Lundgaard qualify a low 25th at his first oval track,[130] but retired after contact with Colton Herta.

[132] The fifth round in the 2022 GMR Grand Prix saw Lundgaard qualify eighth,[133] but lost positions at the start as he went off onto the grass.

[135] At the eighth round at the 2022 Sonsio Grand Prix at Road America, Lundgaard led a lap during the race, and worked his way to finish tenth.

[137] In the race, Lundgaard gained positions when others made contact and took eighth place, his highest finish in IndyCar up till that point.

He tried to recover, but near the end Lundgaard made a mistake and collected a foam barrier dropping him to 21st as he was forced to pit.

Lundgaard is set to switch to Arrow McLaren for the 2025 season, replacing Alexander Rossi and partnering Pato O'Ward and Nolan Siegel.