[7] Ryota Matsune began his mixed martial arts career in 2000, when he entered the 7th All Japan Tournament, organized by Shooto.
[8] He made his professional debut with the organization a month later, when he faced the Shooto journeyman Katsuhisa Akasaki.
Despite Matsune complaining of low blows, the referee didn't stop the action or warn Umezawa.
After controlling Umemura on the ground for the remainder of the fight, Matsune was awarded a unanimous decision win.
Both fighters found moments of success landing knees and short strikes, with Matsune being unable to escape the clinch due to exhaustion.
[20] Riding a five fight winning streak, Matsune was included in Shooto's Featherweight Survivor Tournament.
Matsune opened the first round with a takedown, landing ground-and-pound from half guard, while Nonaka attempted to sweep.
[22] Matsune returned to Shooto after a ten month absence to face Daniel Lima, considered a rising prospect at the time, in a non title fight match.
The first portion of the second round was spent in striking exchanges, but Matsune once again landed in the top position on the ground, after reversing Lima's throw attempt.
Adjusting his approach in the second round, Kentaro allowed Matsune to advance and countered him with a mixture of kicks and reactive takedowns.
[27] Following his first and only title defense, Matsune suffered a knee injury, which prevented him from defending in the mandated time.
[28] Matsune was stripped of the title, but would return after 23 months to face the 2005 Shooto Newcomer of the Year Takeya Mizugaki.
[31] Sato landed an intercepting knee in the second round, as Matsune shot for a takedown, and followed with several strikes before the referee stopped the fight.
[32] Matsune's last professional fight was in 2015, during the VTJ Okinawa event, when he fought the former CFFC flyweight champion Kana Hyatt.