In 2015, he tied for 3rd at the ECCO German Masters and won his first professional title at the Race to HimmerLand in Denmark.

He also won the Muscat Hills Golf Citizen Championship in Oman on the MENA Tour.

Blomstrand earned a 2016–17 Sunshine Tour card through qualifying school, and won the Zambia Sugar Open in April 2016 with a final round 63.

[citation needed] Blomstrand tied for 25th at qualifying school to capture the last available card for the 2018 European Tour, where he saw immediate success at Joburg Open, finding himself in solo second place, after a third round of 62, where he was 11-under-par for the day after 14 holes to raise hopes of an historic 59.

He won multiple times on the 2023 Nordic Golf League, and was runner-up at the Sand Valley Polish Masters.