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.
Clay Guida
2006-03-10
San Jose, CA
Defeats Josh Thomson to become the first champion.
Gilbert Melendez
2006-06-09
San Jose, CA
Josh Thomson
2008-06-27
San Jose, CA
Injured his ankle while training on 09-04-01; Gilbert Melendez defeats Rodrigo Damm on 09-04-11 in San Jose, CA for interim title.
Gilbert Melendez [2]
2009-12-19
San Jose, CA
Defeats Thomson to become the undisputed champion; Strikeforce closes on 13-01-12; Melendez loses to UFC World champion Benson Henderson on 13-04-20 in San Jose, CA.