Boyka is purely fictional. The creators crafted the story to provide thrilling action and drama, not based on real events. The character and his adventures are the product of imagination and creative writing.
Yes. Yuri Boyka is often considered to be based on real - life fighters. His story in the movies shows his journey in the world of underground fighting, and there are real - life counterparts who engage in such intense combat sports in the less - regulated fighting circuits around the world.
In the Yuri Boyka real story, one main event is his participation in underground fights. He battles against various tough opponents to prove his worth. Another event is his struggle with injuries and setbacks but still managing to come back stronger each time.
Well, as of now, there are approximately two dozen Richard Jury novels. However, the count could go up if the author continues to write more in the series.