A YouGov poll, published by the Times last week, took opinions from 1,411 people eligible to vote in the upcoming election.
It found that Corbyn had doubled his lead over the past week and is now polling at 53 percent, meaning he could secure a first-round victory without needing to count the second preferences of voters.
The survey also found initial favorite Andy Burnham stood at 21 percent, Shadow Home Secretary Yvette Cooper stood at 18 percent, while Blairite Labour MP Liz Kendall remained at 8 percent.