John Marks
R · Born March 22, 1948
Age in each postseason series
- 1973 Quarterfinals (April 4, 1973), Blackhawks vs Blues 4–1: 25 years, 13 days
- 1973 Semifinals (April 12, 1973), Blackhawks vs Rangers 4–1: 25 years, 21 days
- 1973 Stanley Cup Final (April 29, 1973), Blackhawks vs Canadiens 2–4: 25 years, 38 days
- 1974 Quarterfinals (April 10, 1974), Blackhawks vs Kings 4–1: 26 years, 19 days
- 1974 Semifinals (April 18, 1974), Blackhawks vs Bruins 2–4: 26 years, 27 days
- 1975 Preliminary round (April 8, 1975), Blackhawks vs Bruins 2–1: 27 years, 17 days
- 1975 Quarterfinals (April 13, 1975), Blackhawks vs Sabres 1–4: 27 years, 22 days
- 1976 Quarterfinals (April 11, 1976), Blackhawks vs Canadiens 0–4: 28 years, 20 days
- 1977 Preliminary round (April 5, 1977), Blackhawks vs Islanders 0–2: 29 years, 14 days
- 1978 Quarterfinals (April 17, 1978), Blackhawks vs Bruins 0–4: 30 years, 26 days
- 1979 Quarterfinals (April 16, 1979), Blackhawks vs Islanders 0–4: 31 years, 25 days
- 1980 Preliminary round (April 8, 1980), Blackhawks vs Blues 3–0: 32 years, 17 days
- 1980 Quarterfinals (April 16, 1980), Blackhawks vs Sabres 0–4: 32 years, 25 days
- 1981 Preliminary round (April 8, 1981), Blackhawks vs Flames 0–3: 33 years, 17 days
- 1982 Division semifinals (April 7, 1982), Blackhawks vs North Stars 3–1: 34 years, 16 days
- 1982 Division finals (April 15, 1982), Blackhawks vs Blues 4–2: 34 years, 24 days
- 1982 Conference finals (April 27, 1982), Blackhawks vs Canucks 1–4: 34 years, 36 days
Age in each season
- 1972-73 (Blackhawks): 24 years, 193 days to 25 years, 39 days
- 1973-74 (Blackhawks): 25 years, 193 days to 26 years, 39 days
- 1974-75 (Blackhawks): 26 years, 193 days to 27 years, 39 days
- 1975-76 (Blackhawks): 27 years, 193 days to 28 years, 39 days
- 1976-77 (Blackhawks): 28 years, 193 days to 29 years, 39 days
- 1977-78 (Blackhawks): 29 years, 193 days to 30 years, 39 days
- 1978-79 (Blackhawks): 30 years, 193 days to 31 years, 39 days
- 1979-80 (Blackhawks): 31 years, 193 days to 32 years, 39 days
- 1980-81 (Blackhawks): 32 years, 193 days to 33 years, 39 days
- 1981-82 (Blackhawks): 33 years, 193 days to 34 years, 39 days