Furlong tied the course record with a three-under-par 69 Monday to take the overall lead in the championships, which features nearly 100 male and female golfers competing in eight divisions.
The event was relocated to The Wilds when it was determined winter damage to the course at Bally Haly meant it couldn't provide was the provincial golf association deemed as "championship conditions"
Like many of the competitors this week, Furlong is eligible for more than one division, so he also leads the men's mid-amateur.
Chuck Conley, the 2016 senior champion, and Nikshantess Penashue are tied for second, four strokes behind Furlong and a stroke ahead of Golf NL Hall of Famer George Chaulk of Harmon Seaside Links in Stephenville.
Conley and Chaulk are second and third in the mid-amateur.
Bally Haly's Janet Mills and Gale Roberts carded 84s to tie for the lead in the women's amateur, mid-amateur and senior divisions, and are two strokes up on Judy Gillam of Humber Valley Resort.
Gillam, the defending super senior champion, leads that decision with her 86.
In the senior men's division, Conley leads Chaulk, while Eddie Bearns of Bally Haly shot a 77 to hold down third place.
In the men's super senior, Johnnie Williams and Andrew Hynes of Clovelly are tied for the lead with 79s, while 2016 champion Don Boland of Bally Haly Country Club is three strokes behind.
Play for in all divisions continues today and tomorrow. The championships are also used to select provincial teams for Atlantic and national championship later this summer.