[4] His second marriage was to his long-time girlfriend Sevil Topuz; he proposed to her during the medal ceremony at the 2016 Mersin World Challenge Cup.
[6] Şamiloğlu began with artistic gymnastics at a young age, motivated by his schoolteacher father, who himself was untalented but tenacious in physical education lessons during this early school years.
Following a physical examination, Onmuş recommended Ümit to go to Bolu although he was three years older than the age to normally start with gymnastics sport.
[7] Şamiloğlu moved to Ankara to study physical education at Gazi University after Dobrev left Bolu to return to his home.
[3] Şamiloğlu sustained an ulnar collateral ligament injury of the elbow at the 2007 World Artistic Gymnastics Championships, which was a qualification competition for the 2008 Summer Olympics.
After recuperating, he won the bronze medal at the 2008 European Men's Artistic Gymnastics Championships held in Lausanne, Switzerland.
[9] Şamiloğlu returned to active sport by March 2013 at the age of 33, placing fourth at the Turnier der Meister in Cottbus, Germany.,[10] He won his first gold medal at the 2013 Mediterranean Games held in Mersin, Turkey.
[13] In 2016, he captured three gold medals at the FIG Artistic Gymnastics World Challenge Cup series in Ljubljana, Slovenia,[14] Osijek, Croatia,[15] and Mersin, Turkey.
[5] He was a gold medalist in the horizontal bar event at the 2018 FIG Artistic Gymnastics World Challenge Cup series in Mersin, Turkey.