[1] Martin Lewandowski announced that KSW has plans for European expansion and will intend to do a new series of smaller events in 2020.

'KSW 53: Reborn' was a mixed martial arts event held by Konfrontacja Sztuk Walki on July 11, 2020 in Warsaw, Poland.

[9] Norman Parke missed weight ahead of his trilogy bout with Mateusz Gamrot for the undisputed KSW Lightweight Title.

Łukasz Rajewski missed weight by two pounds ahead of his scheduled lightweight bout with Bartłomiej Kopera.

[10][11] The pairing met previously at KSW 52: Race on December 7, 2019 in a catchweight non-title bout, Askham had dominated Khalidov during three round to capture the unanimous decision win.

[15][16] KSW 56: Materla vs. Soldić was a mixed martial arts event held by Konfrontacja Sztuk Walki on November 14, 2020 at the Wytwórnia Club in Łódź, Poland.

[17] The co-main event of the evening featured a title bout between the reigning KSW light heavyweight champion Tomasz Narkun and the undefeated Croatian Ivan Erslan.

[21] In the headliner, Phil De Fries has put his KSW heavyweight crown on the line against Michał Kita.