SINGAPORE - The Singapore leg of the 2016 HSBC World Rugby Sevens Series has proven to be a huge hit with local rugby fans with ticket sales set to exceed targets set by organisers.

The Singapore Sevens is making its return after a 10 year absence and Rugby Singapore had hoped to welcome 26,500 spectators to the National Stadium for each of the tournament days this weekend.

It announced on Wednesday that ticket sales per day have crossed the 25,000 mark and as a result of the surging demand, more Category One $150 tickets on Level Four of the National Stadium will go on sale on all channels starting Thursday.

Said Rugby Singapore chairman Low Teo Ping: "We would like to thank all the supporters both locally and from overseas who had bought their tickets early.

"We had also received feedback over the past two weeks from fans hoping to secure Category One reserved seating. In our planning, we had configured the stadium to accommodate 30,000 spectators and we had also anticipated a late surge in ticket uptake.

"We have a state of the art stadium, that is designed for different configurations, so we definitely have the capacity to welcome more spectators to the Singapore Sevens."

A total of 16 world class teams, led by defending Sevens Series champions Fiji and powerhouses New Zealand and South Africa, will take to the field on Saturday.

Fiji currently lead the standings with 128 points, followed by the All Blacks (123 points) and South Africa (122).

The pool matches begins from 10am and celebrated British DJ Pete Tong will be spinning party anthems inside the National Stadium at the conclusion of the first day's action in the evening.

The inaugural Singapore Schools Under 14 7s final will also take place this Sunday (1.26pm) with rivals ACS Independent and Raffles Institution facing each other.

Category Three tickets are sold out while Category One, Two and Four are still available at sportshubtix.sg, singapore7s.sg and Viagogo marketplace.