[3] Born in Zugdidi, Georgia, and started learning Ashihara karate aged nine in the Ashihara International Karate Organization[4] (AIKO), Kiria later relocated to the Netherlands to train under AIKO founder Dave Jonkers at the Golden Glory gym in Zuidlaren, where he is a training partner of legendary heavyweight Sem Schilt.
[7] In 2008, he reached the final of the Ring Masters Olympia 2008 Welterweight Tournament in Istanbul, Turkey but lost to the great Somrak Kamsing by decision after three rounds.
Despite losing to Marco Piqué by an extension round decision in the quarter-finals, he was still given a slot in the semis by replacing Shemsi Beqiri who coundn't continue due to a broken nose.
[9] After tough losses against some of the sport's most experienced fighters, Kiria finally got the break-out win of his career when he defeated the K-1 and It's Showtime veteran William Diender by decision after five rounds in Assen, Netherlands.
[10] He was then pitted against the up-and-coming Robin van Roosmalen at United Glory 13: 2010-2011 World Series Semifinals in Charleroi, Belgium on March 19, 2011, losing via unanimous decision in a "Fight of the Night" display.
[12][13] Despite having gone 0–2 in the Glory promotion, he was included in the 2012 Middleweight Slam tournament, replacing Cosmo Alexandre to join sixteen of the world's best fighters at 70 kg/154 lb.
[18] After an action-packed three rounds, Kiria was given the nod via split decision and headed into the semis to face eventual tournament winner Giorgio Petrosyan, who won by a unanimous points verdict.
[21][22] Kiria took a unanimous decision over Murthel Groenhart at Glory 10: Los Angeles - Middleweight World Championship Tournament in Ontario, California, United States on September 28, 2013.
[37] He is set to make his promotional debut against 2019 ONE Featherweight Kickboxing World Grand Prix Champion Giorgio Petrosyan at ONE Championship: Fists Of Fury on February 26, 2021.
[40][41] Kiria was booked to face Sitthichai Sitsongpeenong in the semifinals of the ONE Featherweight Kickboxing World Grand Prix at ONE: Only the Brave on January 28, 2022.
[48] He lost the bout in the third round due to his right arm being broken whilst attempting to block a left body kick from Tawanchai.