Roasso Kumamoto (2005–)
The club name was changed again to Rosso Kumamoto in 2005. Rosso means red in Italian. After they won the Kyushu Soccer League and finished at the 3rd in the Regional League play-off tournament, the club was promoted to the JFL.
The club was recently featured in J.League program to introduce the club to followers of the professional league. Rosso's second-place finish in the 2007 JFL season was enough to earn promotion into the J.League (J2 League) for the 2008 season.
The club changed their name to current Roasso Kumamoto in 2008. The previous name Rosso was a registered trademark of another company, so the club could not use it due to a risk of copyright infringement.
After 11 years spent in the J2 League, Kumamoto was relegated to the J3 League on 2018.
After three years at J3 League, Kumamoto returned to J2, after being promoted as the J3 champions in 2021, just a point ahead of Iwate Grulla Morioka in the league table.
In 2022, Kumamoto finished in 4th place with 67 points and advanced to J1 promotion/relegation playoffs after an arguably surprising performance in the 2022 J2 League. Roasso played against the 5th and 4th-placed teams of the J2 season, Oita Trinita and Montedio Yamagata, in matches that ended 1–1 and 2–2, respectively. As the league gave the advantage for the higher-placed team in the league standings to qualify for the next round, Roasso were able to qualify for the play-off finals, despite not winning any match. This time, Kyoto Sanga, as the J1 League team in question, earned the seeding advantage, meaning that Roasso needed to win this match in order to earn promotion. The match ended in a 1–1 draw and Roasso were not promoted for the J1. In 2025, Roasso Kumamoto were relegated to the J3 League for the next season after finishing 18th, with a draw in their final game of the season, ending their three-year stay in the second tier.
