Complex sentence: Robert retired with an incredible record of 47 wins, only 5 losses with 36 knockouts to his credit and still considered to this day to be the most exciting fighters in the history of ISKA & PKA Kickboxing.
Split into simpler sentences: Robert retired with a record of 47 wins and 5 losses, with 36 knockouts to his credit. He is still considered to be one of the most exciting fighters in the history of ISKA & PKA Kickboxing.