List them
Pretty much all of them
Cain werdum, obviously
Barao and TJ
The Brotorious B.I.G - Cain werdum, obviouslyThread done!

Frankie "the rematch" Edgar
bigtreechris - Frankie "the rematch" EdgarHey all of Frankie's rematches were justified. Haters gonna hate...

I think Cain and werdum is the silliest rematch, the goat rematch was machida and shogun though, zero argument can be justified on that disgrace of a decision
The Rickson Takada and Tito Shamrock rematches were dumb from a sport perspective but smart from a business perspective.
UGCTT_FryedTakayama -Agreed, he may be the only case where it was justifiedbigtreechris - Frankie "the rematch" EdgarHey all of Frankie's rematches were justified. Haters gonna hate...

I think the best one was Sakuraba getting an immediate rematch the same night UFC Japan '97.
Tito vs Ken 3 was not needed.
Vitor vs Randy 3 was absolutely necessary.
Liddell x Ortiz
Barao x Dillashaw
Cain x werdum
Chuck-Tito and TJ-Barao were not actually immediate rematches.
Wasn't immediate but Cain vs Biggoit
Has Dana even attempted to justify the Cain/Werdum rematch or is he hoping we'll just forget how damn ridiculous it is.
Dillashaw and Barao was not an immediate rematch. TJ beat up Soto next and Renan beat Gagnon
Franky then Ben putting the 155 div on hold
Chaelismyhero - Dillashaw and Barao was not an immediate rematch. TJ beat up Soto next and Renan beat GagnonIt was supposed to be, before Barao pulled out 24hr's before

Curran-straus
Frankie-bendo