In 2004, Kakko became only the third amateur to win a tournament on the Challenge Tour, when he won his home event, the Volvo Finnish Open.

In October 2013, Kakko won at the National Bank of Oman Golf Classic on the Challenge Tour.

[2] In August 2015, Kakko claimed his first victory on the European Tour at the Madeira Islands Open - Portugal - BPI.

[3] In September 2024, Kakko won the final event of the 2024 Finnish Tour season, claiming the season-long Order of Merit title.

[5][6] 1Dual-ranking event with the Challenge Tour *Note: The 2004 Volvo Finnish Open was shortened to 54 holes due to rain.