How many examples are there of 2 fighters facing each other in different weight classes?

[Kung Fu bb]

Do you guys know other examples ?

Penn vs Edgar:
At LW

At featherweight

 

[philbr]

vitor and hendo fought at 185 and 205, no?

 

[Sonny Qc]

Conor Vs Nate 3 at LW soon

 

[E Undead]

Nick diaz vs kj noons

 

[Tanaku]

Search for trilogies- u'll get it.

 

[JOLLYjoe]

Ken Shamrock vs Royce Gracie maybe?

 

[MMA__Analyst]

I think cro cop and wanderlei's fights were at different weights, the 2nd one was open weight i think.

Cruz and faber at 145 and 135