As an amateur he lost in a playoff for the Lexus of Blackburn Heritage Classic, a tournament on the 2013 PGA Tour of Australasia.

In 2018, Herbert began playing the European Tour via sponsor exemptions, finishing 47th on the Race to Dubai and ending the year in the world top-100.

Herbert had a 7th-place finish in the 2019 Omega Dubai Desert Classic in January to reach a career high of 73 in the world rankings.

In January 2020, Herbert won his first European Tour event, the Omega Dubai Desert Classic, where he beat Christiaan Bezuidenhout in a playoff, lifting him back into the world top-100.

[4] The following week, Herbert finished a stroke behind the leaders at the Abrdn Scottish Open, entering into the top 50 in the Official World Golf Ranking for the first time in his career.

[6] In April 2023, Herbert won the ISPS Handa Championship in Japan, he defeated Aaron Cockerill in a playoff.