Winchester resident John Dunleavy, who works in the Boston Bruins front office, is scheduled to be a featured speaker at the Massachusetts Down Syndrome Congress’s seventh annual Golf-a-Thon on Monday. This year’s event is sponsored by ITG Canada and will be held at the Turner Hill Golf Club in Ipswich. Twenty teams of four golfers each are expected to take the course, rain or shine, in a scramble-style tournament complete with awards and incentives. Dunleavy, a self-advocate with Down syndrome, gained media attention for his no-nonsense pep talks for the NHL team this season. He is scheduled to speak at the tournament dinner. He will be joined by another inspiring self-advocate, John Anton, whose work with legislators, policy makers, and disability advocates to support legislation that improves and protects the lives and right of people with Down syndrome and other disabilities has been featured in Time magazine. Organizers of this year’s golf tournament are looking to build on the event’s previous success, having raised more than $750,000 to date.