Ken Livingstone is closing the gap with his Conservative rival at the half-way mark.
Earlier in the day, Boris Johnson had been significantly ahead but that lead is now shrinking with nearly half of all votes counted from voters in Enfield and Haringey.
As anticipated, the two candidates are neck and neck and have stormed ahead while Liberal Democrat Brian Paddick falls further behind.
In the race for the Enfield and Harinegy seat, first time runner Matthew Laban is comfortably ahead.
Although Labour's Joanne McCartney, who currently holds the seat, has seen a small surge in votes.
London -wide assembly member results show the Conservatives in the lead with Labour hot on their heels.
Liberal Democrats and the Green Party have also scored highly with voters.
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