- Country: N/A
- Genres: Action, Drama, Sport
- Release: 2016-09-22 (USA) (Fantastic Fest) (Austin Texas), 2017-01-17 (USA)
- Director: Todor Chapkanov
- Writers: Boaz Davidson , David N. White
- Language: N/A
- Stars: Scott Adkins , Teodora Duhovnikova , Alon Aboutboul , Julian Vergov , Brahim Achabbakhe , Paul Chahidi , Petio Petkov , Valentin Ganev , Vladimir Mihailov , Martyn Ford
- Runtime: 86 min
- Awards: 2 wins.
- AKA: Бойка: Фаворитът (Bulgaria) , Boyka: O Imbatível (Brazil) , Undisputed: Fight for Freedom (United Kingdom) , Неоспоримый 4 (Russian Federation) , Undisputed 4 (Netherlands the) , Boyka: Undisputed IV (Canada) , Boyka: Undisputed IV (Spain) , Yenilmez 4 (Turkey) , Quyết Đấu 4 (Vietnam) , Undisputed 4 - Il ritorno di Boyka (Italy) , Boyka:アンディスピューテッドIV (Japan) , Undisputed IV (United States of America) , Neporažen 4: Bojka (Serbia) , Boyka: Undisputed IV , Vitathatatlan 4. - Piszkos játszma (Hungary) , Champion 4: Walka o honor (Poland) , 終極鬥士4 (Taiwan) , Boyka: Bo'ysunmas 4 (Uzbekistan) , Ο κυρίαρχος τού παιχνιδιού 4 (Greece) , Boyka: Invicto 4 (Spain) , Joc murdar (Romania) , Boyka : Un seul deviendra invincible (France, French Republic) , Boyka: Undisputed IV (India) , Boyka: Undisputed (United States of America) , Undisputed IV: Boyka Is Back (Germany)Boyka: Undisputed, Undisputed IV, Бойка: Неоспоримый, 终极斗士4
- Plot:
In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for. When he finds out the wife of the man he accidentally killed is in trouble, Boyka offers to fight in a series of impossible battles to free her from a life of servitude
- IMDB:tt3344680
Boyka: Undisputed Cast · · · ALL
Todor Chapkanov
Director
Scott Adkins
Yuri Boyka
Teodora Duhovnikova
Alma
Alon Aboutboul
Zourab
Julian Vergov
Slava
Martyn Ford
Koshmar
Brahim Achabbakhe
Igor Kazmir
Paul Chahidi
Kiril
Valentin Ganev
Warden
Vlado Mihailov
Priest
Vladimir Kolev
Koychev
Hristo Petkov
Guard
Bashar Rahal
Scout #2
Tim Man
Ozerov Brother #1
Andreas Nguyen
Ozerov Brother #2
Yavor Baharov
EMT
Slavi Slavov
Prison Referee
Ivan Kostadinov
Large Fighter
Georgi Petkov
Church Choir
Trayan Milenov-Troy
Boris Tarsov
Vencislav Stojanov
Club Referee
Velizar Peev
Fighter #1
Danko Jordanov
Zourab's Guard #1
Dimiter Doichinov
Doorman #1