Borislav Jeliazkov () is a Bulgarian mixed martial artist. He competed in the Heavyweight division.
|- | Loss | align=center| 5âÂÂ6 | Mikhail Ilyukhin | Submission (armbar) | | | align=center| 2 | align=center| 2:06 | Kanagawa, Japan | |- | Win | align=center| 5âÂÂ5 | Konstantin Uriadov | Submission (rear-naked choke) | | | align=center| 1 | align=center| 3:09 | Yekaterinburg, Russia | |- | Loss | align=center| 4âÂÂ5 | Ryushi Yanagisawa | Submission (toe hold) | | | align=center| 1 | align=center| 3:45 | Tokyo, Japan | |- | Win | align=center| 4âÂÂ4 | David Safarov | Submission (choke) | | | align=center| 1 | align=center| 0:00 | Tula, Russia | |- | Win | align=center| 3âÂÂ4 | Igor Perminov | KO (knee to the body) | | | align=center| 1 | align=center| 1:15 | Yekaterinburg, Sverdlovsk Oblast, Russia | |- | Loss | align=center| 2âÂÂ4 | Bobby Hoffman | KO (punch) | | | align=center| 1 | align=center| 8:00 | Tokyo, Japan | |- | Loss | align=center| 2âÂÂ3 | Kiyoshi Tamura | Submission (rear-naked choke) | Rings: King of Kings 1999 Block B | | align=center| 2 | align=center| 1:17 | Osaka, Japan | |- | Win | align=center| 2âÂÂ2 | Tim Lajcik | Submission (rear-naked choke) | Rings: King of Kings 1999 Block B | | align=center| 1 | align=center| 2:23 | Osaka, Japan | |- | Loss | align=center| 1âÂÂ2 | Wataru Sakata | Submission (armbar) | | | align=center| 1 | align=center| 6:49 | Japan | |- | Win | align=center| 1âÂÂ1 | Wataru Sakata | Submission (scarf hold) | | | align=center| 1 | align=center| 8:28 | Japan | |- | Loss | align=center| 0âÂÂ1 | Tsuyoshi Kosaka | Decision (lost points) | | | align=center| 1 | align=center| 0:00 | Japan |