At 18 years and 271 days old, he became the third youngest winner in European Tour history with a dramatic play-off triumph at the AfrAsia Bank Mauritius Open in just his fifth European Tour start.

The victory made him the fastest Dane to a European Tour title, beating 15 time European Tour winner Thomas Bjørn's record of 24 events. Had secured his card for the 2020 season at European Tour Qualifying School Final Stage, becoming the first player born in the 21st century to graduate from the Qualifying School.

He then became the second-youngest player in European Tour history to record multiple wins after securing his second title at the 2020 ISPS Handa UK Championship at the age of 19 years and 171 days.

Højgaard then secured his third European Tour title at the age of just 20, winning the 2021 Omega European Masters, carding a final round 63 to claim a one stroke victory. The win contributed to an historic double on the European Tour, as his identical twin brother Nicolai was victorious the following week at the DS Automobiles Italian Open/

Enjoyed a prolific amateur career, triumphing at the 2018 Eisenhower Trophy for Denmark alongside brother Nicolai and John Axelsen. The twin duo also represented Europe at The 2018 Junior Ryder Cup.