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.
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Gegard Mousasi
2008-09-23
Saitama
Defeats Ronaldo Souza in tournament final to become the first champion; vacates in 09 when Mousasi cannot make the weight limit; the match between Ronaldo Souza and Jason Miller for the vacant title on 09-05-26 in Yokohama ends as a no contest; promotion inactive after 13.
