The year 2012 was the ninth year in the history of the Konfrontacja Sztuk Walki, a mixed martial arts promotion based in Poland. In 2012 Konfrontacja Sztuk Walki held 4 events beginning with, KSW 18: Unfinished Sympathy.
The original main event of Jan Błachowicz fighting Dave Branch was changed when Branch had passport issues in the days leading up to the event.[2] He was replaced by Mario Miranda.
Marcin Różalski was initially scheduled to face Jerome Le Banner in a non-main event fight. However, a knee injury forced Le Banner off the card and with only two days notice Valentijn Overeem stepped in as a replacement.[3]
Also on the card was the first ever women's bout in KSW history when Marta Chojnoska fought Paulina Suska in a 55 kilograms (121 lb) catchweight bout.[6]
The Różalski-Le Banner bout was originally scheduled for KSW 18, however Le Banner was forced to withdraw due to an injured knee.[8] Le Banner was again forced out of this bout due to injury and was replaced by Rodney Glunder.[9]
It was KSW comeback to Warsaw after two years with no events in capitol city of Poland.
Mamed Khalidov was expected to fight Melvin Manhoef in the main event. However, Manhoef suffered an injury to his left leg and pulled out of the bout.[11]Kendall Grove stepped in to fight Khalidov.[12]
^Whitman, Mike (February 22, 2012). "Le Banner injured; Valentijn Overeem meets Marcin Rozalski in new KSW 18 headliner". Retrieved April 1, 2012.
^"Overeem submits Różalski in KSW 18 main event; full results and video". ProMMANow.com. February 26, 2012. Archived from the original on March 30, 2012. Retrieved April 1, 2012.
^"KSW 19 - Pudzianowski vs. Sapp". Sherdog.com. Retrieved 2012-09-05.
^Chiappetta, Mike (April 3, 2012). "Bob Sapp vs. Mariusz Pudzianowski Signed for KSW 19 Main Event". MMAFighting.com. Retrieved April 3, 2012.
^"Marta Chojnoska vs. Paulina Suska na gali KSW19!". konfrontacja.com. March 1, 2012. Retrieved April 3, 2012.