If hashimara like naruto had enough info on nagato's abilities, help from kanoha ninjas and weakness then id call draw.Whatever happens hashimara cannot win, if nagato fights at 100%.
Against naruto, nagato had already wasted alot of chakra fighting and killing kanoha ninjas, then used the ultimate shira tensei to completely destroy the village, which greatly weakened him, yet he fought and successfully captured naruto in sage mode. Then fought with 1/6 of his strength (god realm only) on par with 8 tail mode naruto, before dying due to extremely low chakra when he revived everybody he killed in konoha.
If hashimara had naruto's intel and lets assume he was working alone, it would be extremely hard for him to fight the 6paths and at the same time locate where nagato his hidden, if he does eventually figure out where he is, he would be killed off due to his low chakra left, similar with jiraiya.
Naruto needed all the help he can get from jiraiya, the kanoha ninja's that figured out where pain is located and the demon fox whom without naruto wouldve been captured.