, Anyways this should be pretty obvious beans. Naruto's Max output is a flash bijuu dama which is likely caught & thrown right back. The damage done to Mokujin isn't fatal considering Full Kurama's TBB @ VOTE was much larger than Flash TBB. Hashirama likely brushes it off, (minor damage or a tiny bit more) then proceeds to restrict & drain Naruto & the kyuubi's chakra via his morkyuu's then it's GG.-Normal Bijuu Dama is caught as per canon.
-Kurama is raped by Mokujin in CQC.
-Bijuu Sized Bijuu Dama can be knocked away by Mokujin, Flash Bijuu Dama is tanked by Hobi. Flash BD isn't strong enough to one shot Naruto or Sasuke's Avatars, and a regular BD does less damage to Hobi than it would to Naruto or Sasuke's Avatars, thus Hobi>Their Avatars in durability, thus Flash BD is blocked. If Naruto uses it again Hashirama makes another dome.
-Or it can be redirected with Jukai Kotan and Rashomon.
-FRS and all that good stuff is useless since it's tiers below Bijuu Dama, which can't penetrate Hashirama's defenses.
Match ends with Naruto being bound and killed.
Seems I underestimated Flash TBB, forgot it equaled 5 mountain busters.Hashirama wins this
--Mokujin mauls the kurama avatar and beats the shit out of it in CQC. One pat from it and Kakuan nittei suishu
--mokuton either changes the trajectory of TBB or hotei and Mokujin can just grab them and toss it back at Naruto
--flash TBB either get tanked by hobi or its prep time is just stopped by Mokujin or mokuryu. Hashirama cha also stop it by using mokuton underneath narutos feet to deflect it away