Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
International Sports Kickboxing Association
World Kickboxing Freestyle Heavyweight Title [100kg/220lb] (as of 2025-07-26)
As it is difficult to find comprehensive kickboxing results from the 20th century, these lists are always "under construction." Also this title is controlled by one of those organizations that have world titles in multiple categories such as kickboxing freestyle, K-1 rules, full contact, etc. Because many match results do not specify the category, some of these entries may be for another category. Plus, some kickboxing organizations were known to post the outdated/inaccurate information on their websites especially in 1990's and 2000's. If you have corrections or additional information, please send in!
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Stan Longinidis
1993
Listed as the heavyweight champion (96.4kg) in the official ISKA ranking in 98-02; vacant in 98 or 99.
Mark Russell
1999-11
Bassano del Grappa, ITA
Defeats Franz Haller (or defends the title); listed as the heavyweight champion (96.4kg) in the official ISKA ranking in 00-04; still listed as champion in 09-01; listed inactive in the official rankings as of 13-09.
Freddy Kemayo
2015-03-14
Villepinte, FRA
Defeats Emidio Barone; weight limit is changed to 100kg in 16; vacant as of 20-03-25.
