Radomir Opačić (born June 17, 1997) is a Serbian kickboxer and former taekwondoist who competes in the Heavyweight division.
At 14 years old his family moved to Hamilton, Ontario, Canada where he attended Glendale Secondary School and where he took up Kickboxing at a local Gym.
[3] When he moved back to Serbia he joined the KBKS Gym and competed as an amateur until the age of 18.
[4] On October 27, 2016, Opačić took part in his first major professional event when he engaged in the K-1 World GP 2016 –95 kg Championship Tournament in Belgrade.
He won his quarter finals against Liu Wei by body shot knockout in the first round before losing by second-round TKO to top ranked heavyweight Roman Kryklia in the semifinals where he was knocked down five times.
[7] Opačić was scheduled in a 4-man Heavyweight Tournament at the Enfusion 86 Road to Abu Dhabi event on June 28, 2019.
On December 4, 2020, he faced veteran Errol Zimmerman for his promotional debut at ONE Championship: Big Bang 2 in Singapore.
[16] Opačić was booked to face the one-time WGP Kickboxing Super Heavyweight champion Guto Inocente at ONE 157 on May 20, 2022.
[19] Opačić faced Giannis Stoforidis in the ONE Heavyweight Kickboxing World Grand Prix alternate bout at ONE on Prime Video 2 on September 30, 2022.