He has a reached 2 singles finals on the ITF Futures tour, finishing runner-up on both occasions.

Additionally, he has reached 4 doubles finals also at the ITF Futures level with a record of 1 win and 3 losses.

He won his first and only professional-level title in September 2013 at the Turkey F34 Futures tournament where partnering Dekel Bar of Israel, they defeated Marcus Daniell and Richard Gabb in a third set tie-breaker 2–6, 6–4, [10–8].

Blomgren made his ATP Tour debut at the 2010 Swedish Open held in Båstad.

Alongside compatriot Christian Lindell, the pair received a wild card entry into the main doubles draw where they proceeded to lose in the first round to Polish duo Mateusz Kowalczyk and Tomasz Bednarek in 3 sets 6–3, 2–6, [7–10].