Tomas Jonsson
D · Born April 12, 1960
Age in each postseason series
- 1982 Division semifinals (April 7, 1982), Islanders vs Penguins 3–2: 21 years, 360 days
- 1982 Division finals (April 15, 1982), Islanders vs Rangers 4–2: 22 years, 3 days
- 1982 Conference finals (April 27, 1982), Islanders vs Nordiques 4–0: 22 years, 15 days
- 1982 Stanley Cup Final (May 8, 1982), Islanders vs Canucks 4–0: 22 years, 26 days
- 1983 Division semifinals (April 6, 1983), Islanders vs Capitals 3–1: 22 years, 359 days
- 1983 Division finals (April 14, 1983), Islanders vs Rangers 4–2: 23 years, 2 days
- 1983 Conference finals (April 26, 1983), Islanders vs Bruins 4–2: 23 years, 14 days
- 1983 Stanley Cup Final (May 10, 1983), Islanders vs Oilers 4–0: 23 years, 28 days
- 1984 Division semifinals (April 4, 1984), Islanders vs Rangers 3–2: 23 years, 358 days
- 1984 Division finals (April 12, 1984), Islanders vs Capitals 4–1: 24 years, 0 days
- 1984 Conference finals (April 24, 1984), Islanders vs Canadiens 4–2: 24 years, 12 days
- 1984 Stanley Cup Final (May 10, 1984), Islanders vs Oilers 1–4: 24 years, 28 days
- 1985 Division semifinals (April 10, 1985), Islanders vs Capitals 3–2: 24 years, 363 days
- 1985 Division finals (April 18, 1985), Islanders vs Flyers 1–4: 25 years, 6 days
- 1986 Division semifinals (April 9, 1986), Islanders vs Capitals 0–3: 25 years, 362 days
- 1987 Division semifinals (April 8, 1987), Islanders vs Capitals 4–3: 26 years, 361 days
- 1987 Division finals (April 20, 1987), Islanders vs Flyers 3–4: 27 years, 8 days
- 1988 Division semifinals (April 6, 1988), Islanders vs Devils 2–4: 27 years, 360 days
- 1989 Division semifinals (April 5, 1989), Oilers vs Kings 3–4: 28 years, 358 days
Age in each season
- 1981-82 (Islanders): 21 years, 172 days to 22 years, 18 days
- 1982-83 (Islanders): 22 years, 172 days to 23 years, 18 days
- 1983-84 (Islanders): 23 years, 172 days to 24 years, 18 days
- 1984-85 (Islanders): 24 years, 172 days to 25 years, 18 days
- 1985-86 (Islanders): 25 years, 172 days to 26 years, 18 days
- 1986-87 (Islanders): 26 years, 172 days to 27 years, 18 days
- 1987-88 (Islanders): 27 years, 172 days to 28 years, 18 days
- 1988-89 (Oilers, Islanders): 28 years, 172 days to 29 years, 18 days