Answer (1 of 9): Vegeta would lose to Jiren. UE is implied to have same boost as UI. That said, it’s a bad form or technique for a tournament setting. You can’t use healing items during the ToP. And Vegeta wouldn’t have enough time to recover after every beating. Since the tournament is only 45 m
Can Ultra ego Vegeta defeat Broly (DBS movie)? - Quora
What would happen if Vegito had to fight against Jiren alone? Could he beat him or not? What are his chances of winning this battle alone against him? - Quora
Could mastered Ultra Instinct Goku beat Jiren? - Quora
Who would win, UE Vegeta or Jiren full power? - Quora
If Goku and Vegeta learned Ultra Instinct, will Gogeta beat Ultra Instinct Beerus? - Quora
Who would win, Ultra Ego Vegeta vs Jiren? - Quora
What if Vegeta unlocked Ultra ego in the Tournament of Power, instead of Goku unlocking UI? How would that change events leading to the Granolah arc? - Quora
If Vegeta also learned Ultra Instinct in the tournament of power, would Jiren be able to surpass or defeat Goku and Vegeta? What would be the outcome of this battle? - Quora
If Ultra ego Vegeta was in the tournament of power, could he beat
How strong is Vegeta's Super Saiyan 2 (Enraged) in the DBS manga
How powerful would an Ultra ego Goku be? Would he be the same as or stronger than Ultra ego Vegeta? - Quora
Could Jiren's absurd power be Ultra ego? He did seem to grow stronger the hotter his blood got, just like Vegeta described to Granola. - Quora
If Jiren won the tournament of power would he bring back the other universes? - Quora
Who did the best fighting individually against Jiren between Goku (non-MUI), Vegeta, and HIT? - Quora
If SSJ Gogeta was tanking SSJ Broly, who is stronger than SSGSS Vegeta & Goku, is he as strong as jiren in SSJ? - Quora