In the interim, he played local events in New England with incredible success, ultimately winning the Massachusetts Open six times.
Sisk finally earned PGA Tour membership before the 1999 season but was unable to maintain his card.
For most of the remainder of his career, he played on the local minitours, especially the New England Pro Golf Tour, with much success, winning over a dozen tournaments.
[6] In the summer of 1982, Sisk's play at the Catholic Youth Organization (CYO) Intermediate Tournament was reported by The Boston Globe.
[8] Late in the academic year, Sisk played the Cape Area sectional title at Pocasset Golf Club in Bourne, Massachusetts.
"[19] In June, Sisk met up with former PGA Tour pro Bruce Douglass who gave him advice.
[19] In September, Sisk was the individual champion at the Yale Invitational and "[l]ed" Temple to second-place finish in the team portion of the event.
[20] In October, Sisk was joint medalist at the Big 5 Invitational and Temple won the event for the fifth consecutive year.
[21] Late in the 1986–87 academic year, Sisk won the Eastern Invitational, the final tournament of the season.
[19] "For the first time in two years I really felt like I was hitting the ball," Sisk told The Boston Globe after the event.
[30] In July 1989, Sisk shot a 69, the only under-par score, to earn medalist honors at the Massachusetts Amateur.
[32] During this era, Sisk was regarded as one of the top amateurs in the state by the Massachusetts Golf Association (MGA).
[34][30] He was originally ambivalent about turning pro but later stated "over the winter I thought about it and figured if I don't try to become a professional golfer and see how good I can be, 20 years from now I would regret it.
However, on the final hole, influenced by Quinn's good positioning, Sisk played his approach shot too aggressively and it went into a bunker.
At sectionals, playing Jacaranda Country Club at Plantation, Florida, Sisk shot 284 to move on.
At an event in West Palm Beach, Florida, Sisk shot rounds of 70 and 72 to finish joint second.
[54] In December, at an event at Emerald Dunes Golf Club in West Palm Beach, he finished in a tie for fourth, six back of champion Bob Friend.
"[57] In June 1995, Sisk played a sectional qualifier for the U.S. Open at Century and Old Oaks Country Club in Purchase, New York.
[60] During the "windy" final round, however, Angis self-destructed while Sisk executed a "careful" even-par performance to secure the victory.
[70] After the second round, Sisk stated, "I've been working hard and it's nice to know it's paying off and things are finally starting to click.
[72] In the final round, leader and playing partner John Elliott double bogeyed the par-5 5th hole opening doors.
[76][78] Sisk played the first stage of qualifying school at Porters Neck Plantation in Wilmington, North Carolina.
Sisk shot a final round 70 to finish in fourth place and easily qualify for the PGA Tour.
[43] At his 13th event, the BUY.COM Carolina Classic, Sisk shot rounds of 66–69–65 to put him one back of leader Manny Zerman.
[110] In September, he finished runner-up at the Captains Open in Brewster, Massachusetts to secure the money list title before the season was over.
[121] Shortly thereafter, Sisk won the Wintonbury Hills Open, defeating Andrew Svoboda on the 11th playoff hole.
[124] Days later, Sisk would win another tour event, the New England Open, at 199 (–17), defeating Brett Melton by four strokes.
In June, Sisk played a sectional qualifier for the 2007 U.S. Open held at Century Country Club in Purchase, New York.
[132] Sisk also had much success on the local North American Pro Golf Tour (NAPGT), winning three times.
"[150] Late in his regular career, Sisk had much success at local events in New England, recording a number of first- and second-place finishes.