Times a fighter changed gyms and drastically improved from it? [Permanently or briefly]

[Nathan LaMontagne]

I feel like the biggest jump was Werdum's striking after working with Cordeiro.

He went from straight bad striking to dominating Hunto and Cain on the feet.

 

[HHJ]

Ernest Hoost: Fedor Emelianenko

Fedor didnt change gyms,he just went to Hoost to tune up his striking.

 

[NovaJon93]

Some good mentions so far. He probably would have still been successful but Jones was wise to leave Team Bombsquad for Jackson's in '09.

I can think of a couple examples in the opposite direction with Jake Ellenberger and Travis Browne joining Glendale Fight Club under Edmond Tarverdyan.

 

[KarateYeah]

Bruce Wayne when he went to train with Ra's al Ghul

 

[eiyuu]

Anderson Silva after leaving Chute Boxe and training with Big Nog (then forming the Black House Gym)

 

[TerrorTimmy]

Really surprised I haven't seen any mentions of AKA here.

Khabib especially evolved from his time there. He really didn't know how to use the cage to his advantage before he started training there, and we saw it with his struggles to take down Tibau. But after that, he really became a master at using the cage and didn't struggle like that again.

And that's not even mentioning how his striking improved. He stood toe to toe with Gaethje. Nobody fucking does that, except Chandler. And Chandler lost.