Mark Blinch / Reuters NDP leadership candidate Jagmeet Singh puts on his tie outside a meet and greet event in Hamilton, Ont. on July 17, 2017.

OTTAWA — Ontario MPP Jagmeet Singh may find it more difficult to win the NDP leadership race than he had hoped.

His campaign released a breakdown Tuesday of their membership sign-ups, saying 47,000 of the party's 123,798 members had been sold by Singh's team.

In 13 weeks, according to a campaign press release, more than 30,000 memberships were sold in Ontario — 25,000 in the Greater Toronto Area alone — and more than 10,000 new members came from British Columbia.

Singh team wants to win on first ballot

His campaign demonstrated strength in those vote-rich provinces, as well as in Alberta, Manitoba and even in Quebec. They said nearly 1,500 of the party's 4,907 supporters in Quebec were Singh's sign-ups.

But this NDP leadership race isn't based on a weighted regional ballot, such as this year's Conservative leadership race, in which 259,010 members were eligible to vote. This is a pure one member, one vote race.

Singh's camp told HuffPost they hope to win on the first ballot. Their pathway to victory relies on outselling their opponents on memberships and — this cannot be overstated — getting their vote out.

On the first part, Singh appears well ahead of his opponents: MPs Niki Ashton, Charlie Angus and Guy Caron. Caron's and Angus' campaigns declined to release their membership numbers. Ashton's camp didn't reply to requests for comment.