The attacking midfielder has now tasted victory in 42 of the past 50 matches in the Primera Division in which he has featured, with the remaining eight ending in draws.
His last defeat came at the start of last season, where Barca succumbed to a 2-0 reverse against Hercules in only the second match of the 2010-11 campaign.
However, Iniesta has now put himself on par with the Real Madrid legend Butragueno. The former striker had won 34 and drawn 16 of his positive 50-game streak between 1987 and 1989.
The 27-year-old playmaker now has the chance to break the record against Granada on Tuesday, when the new boys make the trip to Camp Nou.
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